Re: [Haskell-cafe] Cabal fun [Half-integer]
Antoine Latter wrote: Personally, I've never used runhaskell Setup sdist and I've only ever used cabal sdist. But I'm not sure where I learned that. I think cabal-install is a pretty standard util for people to have, and it ships with the Haskell platform now. So the big hurdle is documentation. Andrew - where does it state that Setup sdist is the recommended way of doing this? If it's a wiki you could go and edit it yourself. Start from the Hackage homepage: http://hackage.haskell.org/packages/hackage.html Click on how to create a Haskell package, takes you to http://www.haskell.org/haskellwiki/How_to_write_a_Haskell_program Section 2.10.1.1 shows you how to create a tarball - using setup sdist rather than cabal sdist. Indeed, I don't think cabal-install is mentioned anywhere. If people seriously want this to become the preferred way to do things, it needs to be much more prominently documented. ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Cabal fun [Half-integer]
Derek Elkins wrote: On Sun, Jun 28, 2009 at 4:11 PM, Antoine Latteraslat...@gmail.com wrote: On Sun, Jun 28, 2009 at 3:42 PM, Andrew Coppinandrewcop...@btinternet.com wrote: Ah. Apparently it's fixed: http://hackage.haskell.org/trac/hackage/ticket/40 Except that it isn't fixed. Yay for me.. If one actually reads the discussion in the ticket, it is clear that the conclusion was to have cabal-install handle it and that cabal-install uses it's own tar implementation. This was not at all clear to me from reading the ticker. OK, so I need to find another seperate tool in order to do this. I guess not every single Haskell user tries to release stuff to Hackage, while presumably most users want to install stuff from it. I could just about live with that. However, the following important question remains: If sdist is broken on Windows, and the developers know this, why does it just die with an unhelpful message? Why does it not say this functionallity is not supported; you need to get this tool...? Why did I have to do a custom search of closed tickets on the Trac to even find this information? Why is this not written in big, huge letters in the user guide? The fact that this is broken by default on every Windows box in the land seems like a rather big deal... Seriously... when the next person behind me comes along and tries to do this, they're going to trip over in exactly the same way. All the Cabal guides I've seen so far recommend the use of sdist. (And, indeed, on any other OS it presumably works. It's just another thing you have to do differently if you happen to be on Windows.) GHC already ships with Cabal, and half a dozen GNU utilities; would it have been so hard to just add tar.exe? Anyway, I now [hopefully] have a way to fix my immediate problem. I hope the people in charge will do something to help the next guy behind me... ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Cabal fun [Half-integer]
On Mon, Jun 29, 2009 at 1:03 PM, Andrew Coppinandrewcop...@btinternet.com wrote: This was not at all clear to me from reading the ticker. OK, so I need to find another seperate tool in order to do this. I guess not every single Haskell user tries to release stuff to Hackage, while presumably most users want to install stuff from it. I could just about live with that. However, the following important question remains: If sdist is broken on Windows, and the developers know this, why does it just die with an unhelpful message? Why does it not say this functionallity is not supported; you need to get this tool...? Why did I have to do a custom search of closed tickets on the Trac to even find this information? Why is this not written in big, huge letters in the user guide? The fact that this is broken by default on every Windows box in the land seems like a rather big deal... Seriously... when the next person behind me comes along and tries to do this, they're going to trip over in exactly the same way. All the Cabal guides I've seen so far recommend the use of sdist. (And, indeed, on any other OS it presumably works. It's just another thing you have to do differently if you happen to be on Windows.) GHC already ships with Cabal, and half a dozen GNU utilities; would it have been so hard to just add tar.exe? Anyway, I now [hopefully] have a way to fix my immediate problem. I hope the people in charge will do something to help the next guy behind me... Personally, I've never used runhaskell Setup sdist and I've only ever used cabal sdist. But I'm not sure where I learned that. I think cabal-install is a pretty standard util for people to have, and it ships with the Haskell platform now. So the big hurdle is documentation. Andrew - where does it state that Setup sdist is the recommended way of doing this? If it's a wiki you could go and edit it yourself. Antoine ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Cabal fun [Half-integer]
Antoine Latter wrote: Personally, I've never used runhaskell Setup sdist and I've only ever used cabal sdist. But I'm not sure where I learned that. I think cabal-install is a pretty standard util for people to have, and it ships with the Haskell platform now. So the big hurdle is documentation. Indeed. I've heard a few people claim that cabal-install is the best thing since sliced bread, but I've never touched it. I don't even know where to get it. (Presumably this will become fairly obvious once I go look for it...) Andrew - where does it state that Setup sdist is the recommended way of doing this? If it's a wiki you could go and edit it yourself. The link posted earlier: http://en.wikibooks.org/wiki/Haskell/Packaging#The_Cabal_file I'm pretty sure there's some essentially similar content on the Haskell wiki. (Or there was... I don't know if it got removed when this was put up.) The Cabal manual itself mentions absolutely nothing about cabal-install, as far as I can tell. (At least, I didn't see anything about it while I was looking up the *.cabal format nor the command invocation syntax.) It's news to me that cabal-install ships with the Haskell Platform. (Can you tell how much I've tried out the Platform?) I'm still not completely understanding the direction we're going with this - but that's for another email... ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Cabal fun [Half-integer]
Andrew Coppin wrote: Indeed. I've heard a few people claim that cabal-install is the best thing since sliced bread, but I've never touched it. I don't even know where to get it. (Presumably this will become fairly obvious once I go look for it...) Fortunately, it turns out that a trivial Google search is all that is required to locate cabal-install. (Assuming you already know it exists.) Unfortunately I got as far as actually downloading the sources from Hackage before discovering that on Windows you actually need to download the pre-build binary. (Couldn't you mention this on the Hackage download page?) Also fortunately, it appears to be pretty trivial to operate cabal-install. I didn't bother reading any instructions, just cabal --help. (Not sure why it needs to download the package list from Hackage - or where it puts it. But I'm sure there's a good reason.) Rather less fortunately, it still doesn't actually fix my problem: E:\Haskell\AOC-HalfIntegercabal configure Resolving dependencies... Configuring AOC-HalfInteger-1.0... E:\Haskell\AOC-HalfIntegercabal sdist Building source dist for AOC-HalfInteger-1.0... Preprocessing library AOC-HalfInteger-1.0... Source tarball created: dist\AOC-HalfInteger-1.0.tar.gz cabal: dist\src\sdist.1288\AOC-HalfInteger-1.0\Data\HalfInteger.hs: removeFile: permission denied (Permission denied) I have no idea what the hell it's upset about now... I've now been trying to create this damned tarball since 5PM yesterday, and I still haven't managed it. At this point I'm losing the will to continue with this crazy project. Clearly this is way too much effort to expend just to upload 50 lines of code. ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Cabal fun [Half-integer]
On Mon, Jun 29, 2009 at 11:57 AM, Andrew Coppin andrewcop...@btinternet.com wrote: Andrew Coppin wrote: Indeed. I've heard a few people claim that cabal-install is the best thing since sliced bread, but I've never touched it. I don't even know where to get it. (Presumably this will become fairly obvious once I go look for it...) Fortunately, it turns out that a trivial Google search is all that is required to locate cabal-install. (Assuming you already know it exists.) Unfortunately I got as far as actually downloading the sources from Hackage before discovering that on Windows you actually need to download the pre-build binary. (Couldn't you mention this on the Hackage download page?) Also fortunately, it appears to be pretty trivial to operate cabal-install. I didn't bother reading any instructions, just cabal --help. (Not sure why it needs to download the package list from Hackage - or where it puts it. But I'm sure there's a good reason.) Rather less fortunately, it still doesn't actually fix my problem: E:\Haskell\AOC-HalfIntegercabal configure Resolving dependencies... Configuring AOC-HalfInteger-1.0... E:\Haskell\AOC-HalfIntegercabal sdist Building source dist for AOC-HalfInteger-1.0... Preprocessing library AOC-HalfInteger-1.0... Source tarball created: dist\AOC-HalfInteger-1.0.tar.gz cabal: dist\src\sdist.1288\AOC-HalfInteger-1.0\Data\HalfInteger.hs: removeFile: permission denied (Permission denied) I have no idea what the hell it's upset about now... I've now been trying to create this damned tarball since 5PM yesterday, and I still haven't managed it. At this point I'm losing the will to continue with this crazy project. Clearly this is way too much effort to expend just to upload 50 lines of code. I can't say for certain, but just reading the output it looks like it created a tarball in a temporary folder (that worked) and then when it tried to clean it up it failed. Sounds like a bug report is in order. Jason ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Cabal fun [Half-integer]
On Mon, Jun 29, 2009 at 2:12 PM, Jason Dagitda...@codersbase.com wrote: I can't say for certain, but just reading the output it looks like it created a tarball in a temporary folder (that worked) and then when it tried to clean it up it failed. Sounds like a bug report is in order. You may want to check the dist subdirectory of the folder you're working in to see if it made the tarball. Antoine ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Cabal fun [Half-integer]
Jason Dagit wrote: On Mon, Jun 29, 2009 at 11:57 AM, Andrew Coppin andrewcop...@btinternet.com mailto:andrewcop...@btinternet.com wrote: Rather less fortunately, it still doesn't actually fix my problem: E:\Haskell\AOC-HalfIntegercabal configure Resolving dependencies... Configuring AOC-HalfInteger-1.0... E:\Haskell\AOC-HalfIntegercabal sdist Building source dist for AOC-HalfInteger-1.0... Preprocessing library AOC-HalfInteger-1.0... Source tarball created: dist\AOC-HalfInteger-1.0.tar.gz cabal: dist\src\sdist.1288\AOC-HalfInteger-1.0\Data\HalfInteger.hs: removeFile: permission denied (Permission denied) I have no idea what the hell it's upset about now... I've now been trying to create this damned tarball since 5PM yesterday, and I still haven't managed it. At this point I'm losing the will to continue with this crazy project. Clearly this is way too much effort to expend just to upload 50 lines of code. I can't say for certain, but just reading the output it looks like it created a tarball in a temporary folder (that worked) and then when it tried to clean it up it failed. Sounds like a bug report is in order. So, yet again, it appears I'm the first poor soul to try using this on Windows. The very first time I tried to use Gtk2hs, the installer for Windows was trivially broken. In fairness, Duncan fixed this within an hour or two of me pointing out the problem. But the fact remains: It had been out for a week, and I was the *only* person to have tried to use it on Windows. (Or possibly the only person to actually complain, rather than just give up.) Don kept telling me about some cool Core syntax hilighter he wrote, so I went to all the trouble of downloading it, downloading and building all of its dependencies, only to discover oh, by the way, it only works on Linux. A while back Cabal had a bug where (on Windows only) it couldn't find ld or something daft. [Again, fortunately that one got corrected - eventually - in the next GHC release.] I try to run sdist, and discover that that's broken on Windows too. But don't worry, there's a replacement tool... which is also broken on Windows... This is an exercise in pure frustration! Sometimes it seems as if *everything* is broken on Windows. Hmm... I'm just ranting now. One presumes that when they fixed cabal sdist to work on Windows, at least one person checked that it did, in fact, work. That would mean it got broken again at some point after this. Maybe I just need to find an older version or something... And after that... I guess I create *another* account on *another* bug tracker and submit *another* hey, this is broken on Windows ticket... ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Cabal fun [Half-integer]
I presume that many of the developers do not have windows machines (presumably because windows sucks). Maybe you could help them by trying to track down where the error in the code is, and even better yet submitting a patch? This is all free by the virtue of people giving what time they can, and if you don't happen to have a windows box to test on, it can be very hard to provide compatibility for it. Same in the reverse direction. -Ross On Jun 29, 2009, at 3:55 PM, Andrew Coppin wrote: Jason Dagit wrote: On Mon, Jun 29, 2009 at 11:57 AM, Andrew Coppin andrewcop...@btinternet.com mailto:andrewcop...@btinternet.com wrote: Rather less fortunately, it still doesn't actually fix my problem: E:\Haskell\AOC-HalfIntegercabal configure Resolving dependencies... Configuring AOC-HalfInteger-1.0... E:\Haskell\AOC-HalfIntegercabal sdist Building source dist for AOC-HalfInteger-1.0... Preprocessing library AOC-HalfInteger-1.0... Source tarball created: dist\AOC-HalfInteger-1.0.tar.gz cabal: dist\src\sdist.1288\AOC-HalfInteger-1.0\Data\HalfInteger.hs: removeFile: permission denied (Permission denied) I have no idea what the hell it's upset about now... I've now been trying to create this damned tarball since 5PM yesterday, and I still haven't managed it. At this point I'm losing the will to continue with this crazy project. Clearly this is way too much effort to expend just to upload 50 lines of code. I can't say for certain, but just reading the output it looks like it created a tarball in a temporary folder (that worked) and then when it tried to clean it up it failed. Sounds like a bug report is in order. So, yet again, it appears I'm the first poor soul to try using this on Windows. The very first time I tried to use Gtk2hs, the installer for Windows was trivially broken. In fairness, Duncan fixed this within an hour or two of me pointing out the problem. But the fact remains: It had been out for a week, and I was the *only* person to have tried to use it on Windows. (Or possibly the only person to actually complain, rather than just give up.) Don kept telling me about some cool Core syntax hilighter he wrote, so I went to all the trouble of downloading it, downloading and building all of its dependencies, only to discover oh, by the way, it only works on Linux. A while back Cabal had a bug where (on Windows only) it couldn't find ld or something daft. [Again, fortunately that one got corrected - eventually - in the next GHC release.] I try to run sdist, and discover that that's broken on Windows too. But don't worry, there's a replacement tool... which is also broken on Windows... This is an exercise in pure frustration! Sometimes it seems as if *everything* is broken on Windows. Hmm... I'm just ranting now. One presumes that when they fixed cabal sdist to work on Windows, at least one person checked that it did, in fact, work. That would mean it got broken again at some point after this. Maybe I just need to find an older version or something... And after that... I guess I create *another* account on *another* bug tracker and submit *another* hey, this is broken on Windows ticket... ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Cabal fun [Half-integer]
Ross Mellgren wrote: I presume that many of the developers do not have windows machines (presumably because windows sucks). Maybe you could help them by trying to track down where the error in the code is, and even better yet submitting a patch? This is all free by the virtue of people giving what time they can, and if you don't happen to have a windows box to test on, it can be very hard to provide compatibility for it. Same in the reverse direction. -Ross Well, Duncan informs me that he's just set up a Windows XP VM for this exact reason... Still, I guess this problem will only really be solved once he have large quantities of Windows users hitting this stuff. Indeed, Duncan seems to be one of the more helpful inhabitants of the Haskell IRC channel. I talked to him tonight, and he's already fixed some of the documentation issues I pointed out earlier, and done a preliminary analysis of the sdist bug. (It's filed as ticket #565 now, by the way.) Anyway, for the time being, cabal-install does in fact generate the tarball, it's just tripping over trying to delete the temp files afterwards. So I can still uplo-- wait, you need an account? Is anything ELSE going to stop me?? Time for bed, I think... ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Cabal fun [Half-integer]
On Mon, Jun 29, 2009 at 12:55 PM, Andrew Coppin andrewcop...@btinternet.com wrote: This is an exercise in pure frustration! Sometimes it seems as if *everything* is broken on Windows. In my opinion you're right, Windows, and things built on it, tend to be very broken. Maybe that's why so many of the Haskell devs aren't using Windows? Hmm... I'm just ranting now. Yes, you are :) You'll catch more flies with honey than vinegar. Good luck, Jason ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
[Haskell-cafe] Cabal fun [Half-integer]
Max Rabkin wrote: On Sun, Jun 28, 2009 at 9:29 PM, Andrew Coppinandrewcop...@btinternet.com wrote: Which versions of base have you tested it with? :-) Whichever one GHC 6.10.3 ships with... ghc-pkg list base will tell you which version you have installed. Which tells me I have base-3.0.3.1 *and* base-4.1.0.0 ;-) Frankly, I highly doubt it makes any difference either way. (Does anybody know how base3 differs from base4?) It only uses a few type classes from the Prelude... If it *only* uses the prelude (i.e., does not include *any* modules), then it should work with any version of base. Yeah, that's what I figured... Alrighty then, so how I just do Setup configure, and now Setup sdist, and then I can upload the result to Ha-- oh, don't be silly. That would simply be too easy. ;-) E:\Haskell\AOC-HalfIntegerrunhaskell Setup sdist Building source dist for AOC-HalfInteger-1.0... Preprocessing library AOC-HalfInteger-1.0... Setup: tar is required but it could not be found. Time to go search the web and find out what the other 50 people who stumbled into this did... *sigh* ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Cabal fun [Half-integer]
Andrew Coppin wrote: Alrighty then, so how I just do Setup configure, and now Setup sdist, and then I can upload the result to Ha-- oh, don't be silly. That would simply be too easy. ;-) E:\Haskell\AOC-HalfIntegerrunhaskell Setup sdist Building source dist for AOC-HalfInteger-1.0... Preprocessing library AOC-HalfInteger-1.0... Setup: tar is required but it could not be found. Time to go search the web and find out what the other 50 people who stumbled into this did... *sigh* Ah. Apparently it's fixed: http://hackage.haskell.org/trac/hackage/ticket/40 Except that it isn't fixed. Yay for me... It seems that GHC provides ar but not tar. Looks like I might actually have to copy the entire directory tree to a Linux box just so I can run sdist... Nice to know this stuff is so easy. :-/ ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Cabal fun [Half-integer]
On Sun, Jun 28, 2009 at 3:42 PM, Andrew Coppinandrewcop...@btinternet.com wrote: Andrew Coppin wrote: Alrighty then, so how I just do Setup configure, and now Setup sdist, and then I can upload the result to Ha-- oh, don't be silly. That would simply be too easy. ;-) E:\Haskell\AOC-HalfIntegerrunhaskell Setup sdist Building source dist for AOC-HalfInteger-1.0... Preprocessing library AOC-HalfInteger-1.0... Setup: tar is required but it could not be found. Time to go search the web and find out what the other 50 people who stumbled into this did... *sigh* Ah. Apparently it's fixed: http://hackage.haskell.org/trac/hackage/ticket/40 Except that it isn't fixed. Yay for me... It seems that GHC provides ar but not tar. Looks like I might actually have to copy the entire directory tree to a Linux box just so I can run sdist... Nice to know this stuff is so easy. :-/ I don't know anything that's gauranteed to work, as I've never tried packaging from a Windows box, but: - Is 'htar' a good enough 'tar' replacement for cabal? - Does cabal-install also require an external tar? You could try cabal sdist Antoine ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Cabal fun [Half-integer]
On Sun, Jun 28, 2009 at 4:11 PM, Antoine Latteraslat...@gmail.com wrote: On Sun, Jun 28, 2009 at 3:42 PM, Andrew Coppinandrewcop...@btinternet.com wrote: Andrew Coppin wrote: Alrighty then, so how I just do Setup configure, and now Setup sdist, and then I can upload the result to Ha-- oh, don't be silly. That would simply be too easy. ;-) E:\Haskell\AOC-HalfIntegerrunhaskell Setup sdist Building source dist for AOC-HalfInteger-1.0... Preprocessing library AOC-HalfInteger-1.0... Setup: tar is required but it could not be found. Time to go search the web and find out what the other 50 people who stumbled into this did... *sigh* Ah. Apparently it's fixed: http://hackage.haskell.org/trac/hackage/ticket/40 Except that it isn't fixed. Yay for me... It seems that GHC provides ar but not tar. Looks like I might actually have to copy the entire directory tree to a Linux box just so I can run sdist... Nice to know this stuff is so easy. :-/ I don't know anything that's gauranteed to work, as I've never tried packaging from a Windows box, but: - Is 'htar' a good enough 'tar' replacement for cabal? - Does cabal-install also require an external tar? You could try cabal sdist If one actually reads the discussion in the ticket, it is clear that the conclusion was to have cabal-install handle it and that cabal-install uses it's own tar implementation. ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] [cabal] How to deal with build-depency that not under cabal's control?
I'm CC:ing Duncan, probably he can help. * Magicloud Magiclouds magicloud.magiclo...@gmail.com [2009-06-15 10:01:03+0800] # ghc-pkg list gtk /var/lib/ghc-6.10.3/./package.conf: /home/shidaw/.ghc/i386-linux-6.10.3/package.conf: gtk-0.10.1 Well, still, I have the problem On Sun, Jun 14, 2009 at 6:52 PM, Roman Cheplyakar...@ro-che.info wrote: * Magicloud Magiclouds magicloud.magiclo...@gmail.com [2009-06-14 18:48:26+0800] My gtk2hs is install manually, `configure make make install`. So It's okay. when I add gtk to build-dependency, it tells me Setup.hs: At least the following dependencies are missing: gtk -any Installation of gtk2hs registers these packages for you. Again, check `ghc-pkg list gtk`. If you installed gtk2hs, it must be there. If you, say, upgraded your ghc after you installed gtk2hs, you have to reinstall gtk2hs. How to register my manual-installed gtk2hs to cabal? On Sun, Jun 14, 2009 at 6:25 PM, Roman Cheplyakar...@ro-che.info wrote: * Magicloud Magiclouds magicloud.magiclo...@gmail.com [2009-06-14 17:30:33+0800] Hi, I use gtk2hs in linux. Well, I have no idea how to install gtk2hs by cabal, but my program needs it, and I want my program cabalized. So how to do this? Thanks. gtk2hs consists of several cabal packages, e.g. gtk, glib and so on. (See `ghc-pkg list`) Specify those of them you need as dependencies in cabal file. -- Roman I. Cheplyaka :: http://ro-che.info/ Don't let school get in the way of your education. - Mark Twain ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe -- 竹密岂妨流水过 山高哪阻野云飞 -- Roman I. Cheplyaka :: http://ro-che.info/ Don't let school get in the way of your education. - Mark Twain -- 竹密岂妨流水过 山高哪阻野云飞 -- Roman I. Cheplyaka :: http://ro-che.info/ Don't let school get in the way of your education. - Mark Twain ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] [cabal] How to deal with build-depency that not under cabal's control?
http://haskell.org/cabal/FAQ.html#runghc-setup-complains-of-missing-packages On Mon, 2009-06-15 at 10:30 +0300, Roman Cheplyaka wrote: I'm CC:ing Duncan, probably he can help. * Magicloud Magiclouds magicloud.magiclo...@gmail.com [2009-06-15 10:01:03+0800] # ghc-pkg list gtk /var/lib/ghc-6.10.3/./package.conf: /home/shidaw/.ghc/i386-linux-6.10.3/package.conf: gtk-0.10.1 Well, still, I have the problem On Sun, Jun 14, 2009 at 6:52 PM, Roman Cheplyakar...@ro-che.info wrote: * Magicloud Magiclouds magicloud.magiclo...@gmail.com [2009-06-14 18:48:26+0800] My gtk2hs is install manually, `configure make make install`. So It's okay. when I add gtk to build-dependency, it tells me Setup.hs: At least the following dependencies are missing: gtk -any Installation of gtk2hs registers these packages for you. Again, check `ghc-pkg list gtk`. If you installed gtk2hs, it must be there. If you, say, upgraded your ghc after you installed gtk2hs, you have to reinstall gtk2hs. How to register my manual-installed gtk2hs to cabal? On Sun, Jun 14, 2009 at 6:25 PM, Roman Cheplyakar...@ro-che.info wrote: * Magicloud Magiclouds magicloud.magiclo...@gmail.com [2009-06-14 17:30:33+0800] Hi, I use gtk2hs in linux. Well, I have no idea how to install gtk2hs by cabal, but my program needs it, and I want my program cabalized. So how to do this? Thanks. gtk2hs consists of several cabal packages, e.g. gtk, glib and so on. (See `ghc-pkg list`) Specify those of them you need as dependencies in cabal file. -- Roman I. Cheplyaka :: http://ro-che.info/ Don't let school get in the way of your education. - Mark Twain ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe -- 竹密岂妨流水过 山高哪阻野云飞 -- Roman I. Cheplyaka :: http://ro-che.info/ Don't let school get in the way of your education. - Mark Twain -- 竹密岂妨流水过 山高哪阻野云飞 ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
[Haskell-cafe] [cabal] How to deal with build-depency that not under cabal's control?
Hi, I use gtk2hs in linux. Well, I have no idea how to install gtk2hs by cabal, but my program needs it, and I want my program cabalized. So how to do this? Thanks. -- 竹密岂妨流水过 山高哪阻野云飞 ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] [cabal] How to deal with build-depency that not under cabal's control?
* Magicloud Magiclouds magicloud.magiclo...@gmail.com [2009-06-14 17:30:33+0800] Hi, I use gtk2hs in linux. Well, I have no idea how to install gtk2hs by cabal, but my program needs it, and I want my program cabalized. So how to do this? Thanks. gtk2hs consists of several cabal packages, e.g. gtk, glib and so on. (See `ghc-pkg list`) Specify those of them you need as dependencies in cabal file. -- Roman I. Cheplyaka :: http://ro-che.info/ Don't let school get in the way of your education. - Mark Twain ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] [cabal] How to deal with build-depency that not under cabal's control?
* Magicloud Magiclouds magicloud.magiclo...@gmail.com [2009-06-14 18:48:26+0800] My gtk2hs is install manually, `configure make make install`. So It's okay. when I add gtk to build-dependency, it tells me Setup.hs: At least the following dependencies are missing: gtk -any Installation of gtk2hs registers these packages for you. Again, check `ghc-pkg list gtk`. If you installed gtk2hs, it must be there. If you, say, upgraded your ghc after you installed gtk2hs, you have to reinstall gtk2hs. How to register my manual-installed gtk2hs to cabal? On Sun, Jun 14, 2009 at 6:25 PM, Roman Cheplyakar...@ro-che.info wrote: * Magicloud Magiclouds magicloud.magiclo...@gmail.com [2009-06-14 17:30:33+0800] Hi, I use gtk2hs in linux. Well, I have no idea how to install gtk2hs by cabal, but my program needs it, and I want my program cabalized. So how to do this? Thanks. gtk2hs consists of several cabal packages, e.g. gtk, glib and so on. (See `ghc-pkg list`) Specify those of them you need as dependencies in cabal file. -- Roman I. Cheplyaka :: http://ro-che.info/ Don't let school get in the way of your education. - Mark Twain ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe -- 竹密岂妨流水过 山高哪阻野云飞 -- Roman I. Cheplyaka :: http://ro-che.info/ Don't let school get in the way of your education. - Mark Twain ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Cabal addressibility problem
Vasili I. Galchin vigalc...@gmail.com wrote: Executable GraphPartitionTest Main-Is:Swish.HaskellRDF.GraphPartitionTest.hs Other-modules: Swish.HaskellRDF.GraphPartition Swish.HaskellRDF.GraphClass Swish.HaskellUtils.ListHelpers Swish.HaskellUtils.TestHelpers The Main-Is: line is wrong: it should be: Main-Is:Swish/HaskellRDF/GraphPartitionTest.hs That is, it should name a filepath (usings slashes), not a module (using dots). Regards, Malcolm ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
[Haskell-cafe] Cabal addressibility problem
Hello, The following is a fragment in my cabal file: Executable GraphPartitionTest Main-Is:Swish.HaskellRDF.GraphPartitionTest.hs Other-modules: Swish.HaskellRDF.GraphPartition Swish.HaskellRDF.GraphClass Swish.HaskellUtils.ListHelpers Swish.HaskellUtils.TestHelpers When I try to do a build I get: Setup: can't find source for Swish in . Cabal/Setup seem to be looking in the current directory for source but as you can see I gave full paths, i.e. Swish.HaskellRDF* or Swish.HaskellUtils*. What I doing wrong? Regards, Vasili ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Cabal addressibility problem
-BEGIN PGP SIGNED MESSAGE- Hash: SHA512 On Fri, Jun 5, 2009 at 3:33 PM, Vasili I. Galchin wrote: Hello, The following is a fragment in my cabal file: Executable GraphPartitionTest Main-Is:Swish.HaskellRDF.GraphPartitionTest.hs Other-modules: Swish.HaskellRDF.GraphPartition Swish.HaskellRDF.GraphClass Swish.HaskellUtils.ListHelpers Swish.HaskellUtils.TestHelpers When I try to do a build I get: Setup: can't find source for Swish in . Cabal/Setup seem to be looking in the current directory for source but as you can see I gave full paths, i.e. Swish.HaskellRDF* or Swish.HaskellUtils*. What I doing wrong? Regards, Vasili You need to give more detail. For example, is your directory layout like './src/Swish/HaskellRDF.../foo.hs'? In that case, Cabal is looking for './Swish/HaskellRDF.../foo.hs'. You need to tell it to look in src/ and not ./ with a line like 'hs-source-dirs: src/' etc. - -- gwern -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.9 (GNU/Linux) iEYEAREKAAYFAkopdUsACgkQvpDo5Pfl1oLbCgCfWI1MZOyWnsyAkra88S/LC506 7oMAoJhv5hDcc1Ypqq0hLncB2t/1Yuby =ADOt -END PGP SIGNATURE- ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Cabal addressibility problem
for directory structure I Swish-0.2.1/Swish/HaskellRDF and Swish-0.2.1/Swish/HaskellUtils ... there are deeper directories but that distract from the discussion ... to make things concete: 1) swish.cabal is directly under Swish-0.2.1 2) GraphPartitionTest.hs is under Swish-0.2.1/Swish/HaskellRDF 3) GraphPartitionTest's dependencies are either under HaskellRDF or HaskellUtils Hope this helps to make things clearer. I added a Hs-source-dirs but that help. I did a ruinhaskell Setup -? to check on options. I don't see any verbose mode so that when I do runhaskell Setup build I can moniitor the progress of my build for diagnostic purposes! Is there a verbose mode? Thanks, Vasili On Fri, Jun 5, 2009 at 2:43 PM, Gwern Branwen gwe...@gmail.com wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA512 On Fri, Jun 5, 2009 at 3:33 PM, Vasili I. Galchin wrote: Hello, The following is a fragment in my cabal file: Executable GraphPartitionTest Main-Is:Swish.HaskellRDF.GraphPartitionTest.hs Other-modules: Swish.HaskellRDF.GraphPartition Swish.HaskellRDF.GraphClass Swish.HaskellUtils.ListHelpers Swish.HaskellUtils.TestHelpers When I try to do a build I get: Setup: can't find source for Swish in . Cabal/Setup seem to be looking in the current directory for source but as you can see I gave full paths, i.e. Swish.HaskellRDF* or Swish.HaskellUtils*. What I doing wrong? Regards, Vasili You need to give more detail. For example, is your directory layout like './src/Swish/HaskellRDF.../foo.hs'? In that case, Cabal is looking for './Swish/HaskellRDF.../foo.hs'. You need to tell it to look in src/ and not ./ with a line like 'hs-source-dirs: src/' etc. - -- gwern -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.9 (GNU/Linux) iEYEAREKAAYFAkopdUsACgkQvpDo5Pfl1oLbCgCfWI1MZOyWnsyAkra88S/LC506 7oMAoJhv5hDcc1Ypqq0hLncB2t/1Yuby =ADOt -END PGP SIGNATURE- ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Cabal addressibility problem
-BEGIN PGP SIGNED MESSAGE- Hash: SHA512 On Fri, Jun 5, 2009 at 4:10 PM, Vasili I. Galchin wrote: for directory structure I Swish-0.2.1/Swish/HaskellRDF and Swish-0.2.1/Swish/HaskellUtils ... there are deeper directories but that distract from the discussion ... to make things concete: 1) swish.cabal is directly under Swish-0.2.1 2) GraphPartitionTest.hs is under Swish-0.2.1/Swish/HaskellRDF 3) GraphPartitionTest's dependencies are either under HaskellRDF or HaskellUtils Hope this helps to make things clearer. I added a Hs-source-dirs but that help. I did a ruinhaskell Setup -? to check on options. I don't see any verbose mode so that when I do runhaskell Setup build I can moniitor the progress of my build for diagnostic purposes! Is there a verbose mode? Thanks, Vasili [04:27 PM] 0Mb$ build --help Usage: Setup build [FLAGS] Flags for build: -h --help Show this help text -v --verbose[=n] Control verbosity (n is 0--3, default verbosity level is 1) --builddir=DIR The directory where Cabal puts generated build files (default dist) --with-PROG=PATHgive the path to PROG --PROG-options=OPTS give extra options to PROG --PROG-option=OPT give an extra option to PROG (no need to quote options containing spaces) - -- gwern -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.9 (GNU/Linux) iEYEAREKAAYFAkopf/sACgkQvpDo5Pfl1oIZfgCeInjWOqdxejdpsBaI62YHkSHu BvIAn1ZsC9rCYmluCW2UCmFGVFcAw3bh =S6In -END PGP SIGNATURE- ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Cabal addressibility problem
At work I am using Windose ... so I use runhaskell .. I don't have build Vasili On Fri, Jun 5, 2009 at 3:28 PM, Gwern Branwen gwe...@gmail.com wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA512 On Fri, Jun 5, 2009 at 4:10 PM, Vasili I. Galchin wrote: for directory structure I Swish-0.2.1/Swish/HaskellRDF and Swish-0.2.1/Swish/HaskellUtils ... there are deeper directories but that distract from the discussion ... to make things concete: 1) swish.cabal is directly under Swish-0.2.1 2) GraphPartitionTest.hs is under Swish-0.2.1/Swish/HaskellRDF 3) GraphPartitionTest's dependencies are either under HaskellRDF or HaskellUtils Hope this helps to make things clearer. I added a Hs-source-dirs but that help. I did a ruinhaskell Setup -? to check on options. I don't see any verbose mode so that when I do runhaskell Setup build I can moniitor the progress of my build for diagnostic purposes! Is there a verbose mode? Thanks, Vasili [04:27 PM] 0Mb$ build --help Usage: Setup build [FLAGS] Flags for build: -h --help Show this help text -v --verbose[=n] Control verbosity (n is 0--3, default verbosity level is 1) --builddir=DIR The directory where Cabal puts generated build files (default dist) --with-PROG=PATHgive the path to PROG --PROG-options=OPTS give extra options to PROG --PROG-option=OPT give an extra option to PROG (no need to quote options containing spaces) - -- gwern -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.9 (GNU/Linux) iEYEAREKAAYFAkopf/sACgkQvpDo5Pfl1oIZfgCeInjWOqdxejdpsBaI62YHkSHu BvIAn1ZsC9rCYmluCW2UCmFGVFcAw3bh =S6In -END PGP SIGNATURE- ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Cabal addressibility problem
getting farther . Executable GraphPartitionTest Hs-source-dirs: Swish/ added this Main-Is:HaskellRDF/GraphPartitionTest.hschanged to a real filesystem path Other-modules: HaskellRDF.GraphPartition HaskellRDF.GraphClass HaskellUtils.ListHelpers HaskellUtils.TestHelpers now says can't find module 'Swish.HaskellUtils.TestHelpers'??? Vasili On Fri, Jun 5, 2009 at 3:28 PM, Gwern Branwen gwe...@gmail.com wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA512 On Fri, Jun 5, 2009 at 4:10 PM, Vasili I. Galchin wrote: for directory structure I Swish-0.2.1/Swish/HaskellRDF and Swish-0.2.1/Swish/HaskellUtils ... there are deeper directories but that distract from the discussion ... to make things concete: 1) swish.cabal is directly under Swish-0.2.1 2) GraphPartitionTest.hs is under Swish-0.2.1/Swish/HaskellRDF 3) GraphPartitionTest's dependencies are either under HaskellRDF or HaskellUtils Hope this helps to make things clearer. I added a Hs-source-dirs but that help. I did a ruinhaskell Setup -? to check on options. I don't see any verbose mode so that when I do runhaskell Setup build I can moniitor the progress of my build for diagnostic purposes! Is there a verbose mode? Thanks, Vasili [04:27 PM] 0Mb$ build --help Usage: Setup build [FLAGS] Flags for build: -h --help Show this help text -v --verbose[=n] Control verbosity (n is 0--3, default verbosity level is 1) --builddir=DIR The directory where Cabal puts generated build files (default dist) --with-PROG=PATHgive the path to PROG --PROG-options=OPTS give extra options to PROG --PROG-option=OPT give an extra option to PROG (no need to quote options containing spaces) - -- gwern -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.9 (GNU/Linux) iEYEAREKAAYFAkopf/sACgkQvpDo5Pfl1oIZfgCeInjWOqdxejdpsBaI62YHkSHu BvIAn1ZsC9rCYmluCW2UCmFGVFcAw3bh =S6In -END PGP SIGNATURE- ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Cabal addressibility problem
-BEGIN PGP SIGNED MESSAGE- Hash: SHA512 On Fri, Jun 5, 2009 at 4:49 PM, Vasili I. Galchin wrote: getting farther . Executable GraphPartitionTest Hs-source-dirs: Swish/ Main-Is: HaskellRDF/GraphPartitionTest.hsfilesystem path Right. You understand why it has to be a filepath and not a module name? Because the module name of an executable would be 'Main', not HaskellRDF.GraphPartitionTest. You can try compiling something like module Foo (main) where main = print hello world and see for yourself how it fails. Other-modules: HaskellRDF.GraphPartition HaskellRDF.GraphClass HaskellUtils.ListHelpers HaskellUtils.TestHelpers module 'Swish.HaskellUtils.TestHelpers'??? Vasili Right. hs-source-dirs defined all the module paths as relative to Swish/; I think the solution here would be to have something like 'hs-source-dirs: ., Swish/' (or whatever the directory was that the HaskellUtils stuff can be found in if not ./). - -- gwern -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.9 (GNU/Linux) iEYEAREKAAYFAkophlwACgkQvpDo5Pfl1oJkBgCeLBI6CsOOdt4EzJa1CaYzoMd4 aDAAn3HICqcDAR74J7z4v8xkakVJ6bDl =hgRy -END PGP SIGNATURE- ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Cabal addressibility problem
If your module statements say Swish in them, e.g. module Swish.HaskellUtils.TestHelpers where then you should probably have no hs-source-dirs (or hs-source-dirs: .) and then use Swish.HaskellUtils.TestHelpers. But leave Main-Is: as you have it. -Ross On Jun 5, 2009, at 4:49 PM, Vasili I. Galchin wrote: getting farther . Executable GraphPartitionTest Hs-source-dirs: Swish/ added this Main-Is:HaskellRDF/GraphPartitionTest.hschanged to a real filesystem path Other-modules: HaskellRDF.GraphPartition HaskellRDF.GraphClass HaskellUtils.ListHelpers HaskellUtils.TestHelpers now says can't find module 'Swish.HaskellUtils.TestHelpers'??? Vasili On Fri, Jun 5, 2009 at 3:28 PM, Gwern Branwen gwe...@gmail.com wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA512 On Fri, Jun 5, 2009 at 4:10 PM, Vasili I. Galchin wrote: for directory structure I Swish-0.2.1/Swish/HaskellRDF and Swish-0.2.1/Swish/HaskellUtils ... there are deeper directories but that distract from the discussion ... to make things concete: 1) swish.cabal is directly under Swish-0.2.1 2) GraphPartitionTest.hs is under Swish-0.2.1/Swish/HaskellRDF 3) GraphPartitionTest's dependencies are either under HaskellRDF or HaskellUtils Hope this helps to make things clearer. I added a Hs-source-dirs but that help. I did a ruinhaskell Setup -? to check on options. I don't see any verbose mode so that when I do runhaskell Setup build I can moniitor the progress of my build for diagnostic purposes! Is there a verbose mode? Thanks, Vasili [04:27 PM] 0Mb$ build --help Usage: Setup build [FLAGS] Flags for build: -h --help Show this help text -v --verbose[=n] Control verbosity (n is 0--3, default verbosity level is 1) --builddir=DIR The directory where Cabal puts generated build files (default dist) --with-PROG=PATHgive the path to PROG --PROG-options=OPTS give extra options to PROG --PROG-option=OPT give an extra option to PROG (no need to quote options containing spaces) - -- gwern -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.9 (GNU/Linux) iEYEAREKAAYFAkopf/sACgkQvpDo5Pfl1oIZfgCeInjWOqdxejdpsBaI62YHkSHu BvIAn1ZsC9rCYmluCW2UCmFGVFcAw3bh =S6In -END PGP SIGNATURE- ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Cabal/primes
On this note, shouldn't there be cabal uninstall? -- ryan On Wed, Jun 3, 2009 at 3:40 PM, Don Stewart d...@galois.com wrote: nowgate: Got it working. I downloaded two packages, primes and Numbers. Since Numbers has the three functions I want to use, primes, isPrime and isProbablyPrime, how do I uninstall the primes package so there won't be a conflict? Easy! $ ghc-pkg unregister primes -- Don ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Cabal/primes
On Thu, Jun 4, 2009 at 9:52 AM, Ryan Ingram ryani.s...@gmail.com wrote: On this note, shouldn't there be cabal uninstall? You mean ticket 234? http://hackage.haskell.org/trac/hackage/ticket/234 Yes, its been open for a year and has been quietly waiting for developer time... are you the lucky developer who gets to implement it? Thomas ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Cabal/primes
OK, I downloaded Numbers. Still missing the three functions I wanted, which are primes, isPrime, and isProbablyPrime. How do I get these? Michael ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Cabal/primes
Prelude :m + Data.Numbers.Primes Prelude Data.Numbers.Primes :browse isPrime :: Integer - Bool isProbablyPrime :: (System.Random.RandomGen g) = Integer - g - (Bool, g) primes :: [Integer] Prelude Data.Numbers.Primes isPrime 3525266 Loading package syb ... linking ... done. Loading package base-3.0.3.0 ... linking ... done. Loading package old-locale-1.0.0.1 ... linking ... done. Loading package old-time-1.0.0.1 ... linking ... done. Loading package random-1.0.0.1 ... linking ... done. Loading package Numbers-0.2.1 ... linking ... done. False Prelude Data.Numbers.Primes On Jun 3, 2009, at 6:57 AM, michael rice wrote: OK, I downloaded Numbers. Still missing the three functions I wanted, which are primes, isPrime, and isProbablyPrime. How do I get these? Michael ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Cabal/primes
This is working differently than it did last night, when at least import was working. Michael [mich...@localhost ~]$ ghci GHCi, version 6.10.1: http://www.haskell.org/ghc/ :? for help Loading package ghc-prim ... linking ... done. Loading package integer ... linking ... done. Loading package base ... linking ... done. Prelude import Data.Numbers.Primes Could not find module `Data.Numbers.Primes': it was found in multiple packages: Numbers-0.2.1 primes-0.1.1 Prelude :m + Data.Numbers.Primes Could not find module `Data.Numbers.Primes': it was found in multiple packages: Numbers-0.2.1 primes-0.1.1 Prelude Data.Numbers.Primes :browse interactive:1:21: parse error on input `:' Prelude isPrime 3525266 interactive:1:0: Not in scope: `isPrime' Prelude == [mich...@localhost ~]$ cd .cabal [mich...@localhost .cabal]$ ls -l total 20 -rw-rw-r-- 1 michael michael 1729 2009-06-02 18:59 config drwxrwxr-x 4 michael michael 4096 2009-06-02 22:14 lib drwxrwxr-x 2 michael michael 4096 2009-06-02 19:05 logs drwxrwxr-x 3 michael michael 4096 2009-06-02 18:59 packages drwxrwxr-x 3 michael michael 4096 2009-06-02 19:05 share [mich...@localhost .cabal]$ cd packages [mich...@localhost packages]$ ls -l total 4 drwxrwxr-x 4 michael michael 4096 2009-06-02 22:14 hackage.haskell.org [mich...@localhost packages]$ cd hackage.haskell.org [mich...@localhost hackage.haskell.org]$ ls -l total 12464 -rw--- 1 michael michael 11735040 2009-06-02 22:14 00-index.tar -rw--- 1 michael michael 992994 2009-06-02 22:14 00-index.tar.gz -rw-rw-r-- 1 michael michael 418 2009-06-02 22:14 build-reports.log drwxrwxr-x 3 michael michael 4096 2009-06-02 22:14 Numbers drwxrwxr-x 3 michael michael 4096 2009-06-02 19:05 primes [mich...@localhost hackage.haskell.org]$ [mich...@localhost hackage.haskell.org]$ pwd /home/michael/.cabal/packages/hackage.haskell.org [mich...@localhost hackage.haskell.org]$ = --- On Wed, 6/3/09, brian bri...@aracnet.com wrote: From: brian bri...@aracnet.com Subject: Re: [Haskell-cafe] Cabal/primes To: michael rice nowg...@yahoo.com Cc: haskell-cafe@haskell.org Date: Wednesday, June 3, 2009, 10:46 AM Prelude :m + Data.Numbers.Primes Prelude Data.Numbers.Primes :browse isPrime :: Integer - Bool isProbablyPrime :: (System.Random.RandomGen g) = Integer - g - (Bool, g) primes :: [Integer] Prelude Data.Numbers.Primes isPrime 3525266 Loading package syb ... linking ... done. Loading package base-3.0.3.0 ... linking ... done. Loading package old-locale-1.0.0.1 ... linking ... done. Loading package old-time-1.0.0.1 ... linking ... done. Loading package random-1.0.0.1 ... linking ... done. Loading package Numbers-0.2.1 ... linking ... done. False Prelude Data.Numbers.Primes On Jun 3, 2009, at 6:57 AM, michael rice wrote: OK, I downloaded Numbers. Still missing the three functions I wanted, which are primes, isPrime, and isProbablyPrime. How do I get these? Michael ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Cabal/primes
Got it working. I downloaded two packages, primes and Numbers. Since Numbers has the three functions I want to use, primes, isPrime and isProbablyPrime, how do I uninstall the primes package so there won't be a conflict? Michael = [mich...@localhost hackage.haskell.org]$ ghc-pkg hide primes Writing new package config file... done. [mich...@localhost hackage.haskell.org]$ isPrime 7 bash: isPrime: command not found [mich...@localhost hackage.haskell.org]$ ghci GHCi, version 6.10.1: http://www.haskell.org/ghc/ :? for help Loading package ghc-prim ... linking ... done. Loading package integer ... linking ... done. Loading package base ... linking ... done. Prelude :m + Data.Numbers.Primes Prelude Data.Numbers.Primes isPrime 7 Loading package syb ... linking ... done. Loading package base-3.0.3.0 ... linking ... done. Loading package old-locale-1.0.0.1 ... linking ... done. Loading package old-time-1.0.0.1 ... linking ... done. Loading package random-1.0.0.1 ... linking ... done. Loading package Numbers-0.2.1 ... linking ... done. True Prelude Data.Numbers.Primes take 10 primes [2,3,5,7,11,13,17,19,23,29] Prelude Data.Numbers.Primes --- On Wed, 6/3/09, michael rice nowg...@yahoo.com wrote: From: michael rice nowg...@yahoo.com Subject: Re: [Haskell-cafe] Cabal/primes To: brian bri...@aracnet.com Cc: haskell-cafe@haskell.org Date: Wednesday, June 3, 2009, 3:46 PM This is working differently than it did last night, when at least import was working. Michael [mich...@localhost ~]$ ghci GHCi, version 6.10.1: http://www.haskell.org/ghc/ :? for help Loading package ghc-prim ... linking ... done. Loading package integer ... linking ... done. Loading package base ... linking ... done. Prelude import Data.Numbers.Primes Could not find module `Data.Numbers.Primes': it was found in multiple packages: Numbers-0.2.1 primes-0.1.1 Prelude :m + Data.Numbers.Primes Could not find module `Data.Numbers.Primes': it was found in multiple packages: Numbers-0.2.1 primes-0.1.1 Prelude Data.Numbers.Primes :browse interactive:1:21: parse error on input `:' Prelude isPrime 3525266 interactive:1:0: Not in scope: `isPrime' Prelude == [mich...@localhost ~]$ cd .cabal [mich...@localhost .cabal]$ ls -l total 20 -rw-rw-r-- 1 michael michael 1729 2009-06-02 18:59 config drwxrwxr-x 4 michael michael 4096 2009-06-02 22:14 lib drwxrwxr-x 2 michael michael 4096 2009-06-02 19:05 logs drwxrwxr-x 3 michael michael 4096 2009-06-02 18:59 packages drwxrwxr-x 3 michael michael 4096 2009-06-02 19:05 share [mich...@localhost .cabal]$ cd packages [mich...@localhost packages]$ ls -l total 4 drwxrwxr-x 4 michael michael 4096 2009-06-02 22:14 hackage.haskell.org [mich...@localhost packages]$ cd hackage.haskell.org [mich...@localhost hackage.haskell.org]$ ls -l total 12464 -rw--- 1 michael michael 11735040 2009-06-02 22:14 00-index.tar -rw--- 1 michael michael 992994 2009-06-02 22:14 00-index.tar.gz -rw-rw-r-- 1 michael michael 418 2009-06-02 22:14 build-reports.log drwxrwxr-x 3 michael michael 4096 2009-06-02 22:14 Numbers drwxrwxr-x 3 michael michael 4096 2009-06-02 19:05 primes [mich...@localhost hackage.haskell.org]$ [mich...@localhost hackage.haskell.org]$ pwd /home/michael/.cabal/packages/hackage.haskell.org [mich...@localhost hackage.haskell.org]$ = --- On Wed, 6/3/09, brian bri...@aracnet.com wrote: From: brian bri...@aracnet.com Subject: Re: [Haskell-cafe] Cabal/primes To: michael rice nowg...@yahoo.com Cc: haskell-cafe@haskell.org Date: Wednesday, June 3, 2009, 10:46 AM Prelude :m + Data.Numbers.Primes Prelude Data.Numbers.Primes :browse isPrime :: Integer - Bool isProbablyPrime :: (System.Random.RandomGen g) = Integer - g - (Bool, g) primes :: [Integer] Prelude Data.Numbers.Primes isPrime 3525266 Loading package syb ... linking ... done. Loading package base-3.0.3.0 ... linking ... done. Loading package old-locale-1.0.0.1 ... linking ... done. Loading package old-time-1.0.0.1 ... linking ... done. Loading package random-1.0.0.1 ... linking ... done. Loading package Numbers-0.2.1 ... linking ... done. False Prelude Data.Numbers.Primes On Jun 3, 2009, at 6:57 AM, michael rice wrote: OK, I downloaded Numbers. Still missing the three functions I wanted, which are primes, isPrime, and isProbablyPrime. How do I get these? Michael ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe -Inline Attachment Follows- ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Cabal/primes
nowgate: Got it working. I downloaded two packages, primes and Numbers. Since Numbers has the three functions I want to use, primes, isPrime and isProbablyPrime, how do I uninstall the primes package so there won't be a conflict? Easy! $ ghc-pkg unregister primes -- Don ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Cabal/primes
Excellent! Thanks. Michael --- On Wed, 6/3/09, Don Stewart d...@galois.com wrote: From: Don Stewart d...@galois.com Subject: Re: [Haskell-cafe] Cabal/primes To: michael rice nowg...@yahoo.com Cc: brian bri...@aracnet.com, haskell-cafe@haskell.org Date: Wednesday, June 3, 2009, 6:40 PM nowgate: Got it working. I downloaded two packages, primes and Numbers. Since Numbers has the three functions I want to use, primes, isPrime and isProbablyPrime, how do I uninstall the primes package so there won't be a conflict? Easy! $ ghc-pkg unregister primes -- Don ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
[Haskell-cafe] Cabal/primes
Finally got adventurous enough to get Cabal working, downloaded the primes package, and got the following error message when trying isPrime. Am I missing something here? Michael == [mich...@localhost ~]$ ghci GHCi, version 6.10.1: http://www.haskell.org/ghc/ :? for help Loading package ghc-prim ... linking ... done. Loading package integer ... linking ... done. Loading package base ... linking ... done. Prelude import Data.Numbers.Primes Prelude Data.Numbers.Primes take 10 primes Loading package syb ... linking ... done. Loading package base-3.0.3.0 ... linking ... done. Loading package primes-0.1.1 ... linking ... done. [2,3,5,7,11,13,17,19,23,29] Prelude Data.Numbers.Primes isPrime 7 interactive:1:0: Not in scope: `isPrime' Prelude Data.Numbers.Primes ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Cabal/primes
michael rice wrote: Finally got adventurous enough to get Cabal working, downloaded the primes package, and got the following error message when trying isPrime. Am I missing something here? The Data.Numbers.Primes module of the primes package does not implement 'isPrime'. The Numbers package is probably the one you want. Bertram ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
[Haskell-cafe] cabal option to specify the ghc version?
Hi. How can I tell cabal (= the executable from cabal-install) to use a specific ghc version (and not the one that's currently linked to ghc)? - Thanks, J.W. signature.asc Description: OpenPGP digital signature ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] cabal option to specify the ghc version?
On Wed, May 27, 2009 at 5:25 PM, Johannes Waldmann waldm...@imn.htwk-leipzig.de wrote: Hi. How can I tell cabal (= the executable from cabal-install) to use a specific ghc version (and not the one that's currently linked to ghc)? - Thanks, J.W. According to http://haskell.org/haskellwiki/Cabal/How_to_install_a_Cabal_package, you would use the --with-compiler option. -- Dave Menendez d...@zednenem.com http://www.eyrie.org/~zednenem/ ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] cabal option to specify the ghc version?
On Wed, 27 May 2009, Johannes Waldmann wrote: Hi. How can I tell cabal (= the executable from cabal-install) to use a specific ghc version (and not the one that's currently linked to ghc)? - Thanks, J.W. cabal install --with-compiler=/usr/local/lib/ghc-6.4.2/whatknowi ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Cabal, Time GHC 6.10.2
Duncan Coutts wrote: On Sun, 2009-05-17 at 09:17 +0100, Dominic Steinitz wrote: I get d...@linux-6ofq:~/asn1 runghc Setup.hs configure Configuring PER-0.0.20... Setup.hs: At least the following dependencies are missing: time -any -any but I have time d...@linux-6ofq:~/asn1 ghc-pkg list | grep time old-locale-1.0.0.1, old-time-1.0.0.2, packedstring-0.1.0.1, time-1.1.2.4 I think I can see why cabal isn't finding it: ghc-pkg dump --global | grep time-1.1.2.4 finds nothing and I believe that is what cabal uses to find things. The default for runghc Setup.hs configure is --global, but the default for cabal configure is --user. So if you're using the cabal program to install packages, then you can also us it to configure other packages. If for you need to use the runghc Setup.hs interface (e.g. in some system build scripts) and you want it to pick up packages from the user package db then use the --user flag. If you're constantly having to use the runghc Setup.hs interface and doing per-user installs is a pain then you can set the default for the cabal program to be global installs in the cabal config file (~/.cabal/config). I'll add this issue to the FAQ, it come up enough. If anyone else reading would like to eliminate this FAQ, then implementing this ticket is the answer: suggest use of --user if configure fails with missing deps that are in the user db http://hackage.haskell.org/trac/hackage/ticket/384 Duncan Duncan, Thanks very much. I'm happy to update the FAQ this weekend unless you have already done it. Dominic. ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Cabal, Time GHC 6.10.2
On Sun, 2009-05-24 at 12:04 +0100, Dominic Steinitz wrote: I'll add this issue to the FAQ, it come up enough. If anyone else reading would like to eliminate this FAQ, then implementing this ticket is the answer: suggest use of --user if configure fails with missing deps that are in the user db http://hackage.haskell.org/trac/hackage/ticket/384 Thanks very much. I'm happy to update the FAQ this weekend unless you have already done it. Oh that'd be great. The Cabal website is managed as a darcs repo so just: darcs get http://haskell.org/cabal/ then edit the FAQ.markdown and run make to update the FAQ.html (uses pandoc). Then darcs send the patches to me or the cabal-devel mailing list. Duncan ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
[Haskell-cafe] Cabal, Time GHC 6.10.2
I get d...@linux-6ofq:~/asn1 runghc Setup.hs configure Configuring PER-0.0.20... Setup.hs: At least the following dependencies are missing: time -any -any but I have time d...@linux-6ofq:~/asn1 ghc-pkg list | grep time old-locale-1.0.0.1, old-time-1.0.0.2, packedstring-0.1.0.1, time-1.1.2.4 I think I can see why cabal isn't finding it: ghc-pkg dump --global | grep time-1.1.2.4 finds nothing and I believe that is what cabal uses to find things. What's not clear is what I do to fix things. Go back to 6.10.1? Thanks, Dominic. d...@linux-6ofq:~/asn1 ghc --version The Glorious Glasgow Haskell Compilation System, version 6.10.2 d...@linux-6ofq:~/asn1 ghc-pkg --version GHC package manager version 6.10.2 Here's my .cabal file. Name:PER Version: 0.0.20 License: BSD3 Author: Dominic Steinitz Maintainer: dominic.stein...@blueyonder.co.uk Copyright: Dominic Steinitz 2003 - 2009 Stability: Alpha Category:Language Homepage:http://www.haskell.org/asn1 Synopsis:ASN.1 PER support for Haskell Description: A formal and executable specification of the Packed Encoding Rules (PER) for ASN.1 build-depends: binary-strict == 0.4.2, bytestring, mtl, containers, time, pretty, base build-type: custom Exposed-Modules: Language.ASN1.PER.Integer Language.ASN1.PER.GenerateC Executable: PERTest Main-Is: PERTest.hs ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Cabal, Time GHC 6.10.2
On Sun, 2009-05-17 at 09:17 +0100, Dominic Steinitz wrote: I get d...@linux-6ofq:~/asn1 runghc Setup.hs configure Configuring PER-0.0.20... Setup.hs: At least the following dependencies are missing: time -any -any but I have time d...@linux-6ofq:~/asn1 ghc-pkg list | grep time old-locale-1.0.0.1, old-time-1.0.0.2, packedstring-0.1.0.1, time-1.1.2.4 I think I can see why cabal isn't finding it: ghc-pkg dump --global | grep time-1.1.2.4 finds nothing and I believe that is what cabal uses to find things. The default for runghc Setup.hs configure is --global, but the default for cabal configure is --user. So if you're using the cabal program to install packages, then you can also us it to configure other packages. If for you need to use the runghc Setup.hs interface (e.g. in some system build scripts) and you want it to pick up packages from the user package db then use the --user flag. If you're constantly having to use the runghc Setup.hs interface and doing per-user installs is a pain then you can set the default for the cabal program to be global installs in the cabal config file (~/.cabal/config). I'll add this issue to the FAQ, it come up enough. If anyone else reading would like to eliminate this FAQ, then implementing this ticket is the answer: suggest use of --user if configure fails with missing deps that are in the user db http://hackage.haskell.org/trac/hackage/ticket/384 Duncan ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] cabal parse problems
On Wed, 2009-05-06 at 19:37 -0500, Vasili I. Galchin wrote: are them some CLI switches I can enable in order to better determine what parse error is?? The problem is that we're using a parser that has no support for producing parse errors (Text.ParserCombinators.ReadP). The only reason we're using this parser is because it's the only one in the core libraries. Packages like parsec cannot be used in Cabal because Cabal is a core library and parsec is not. For this reason we've been considering just copying another parser module into Cabal so that we can have saner (and quicker) parsing. Kind regards, Vasili On Wed, May 6, 2009 at 6:12 PM, Vasili I. Galchin vigalc...@gmail.com wrote: sorrily nope, Brian ... For what it's worth, Brian was right, you cannot have a trailing comma in a list field. Perhaps there was an additional error in the file that we could not see in the bit you posted. Duncan ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] cabal parse problems
Thanks .. very interesting on the cabal parsers. I somehow got around my problem ... forgot how though. Vasili On Sat, May 9, 2009 at 10:48 AM, Duncan Coutts duncan.cou...@worc.ox.ac.ukwrote: On Wed, 2009-05-06 at 19:37 -0500, Vasili I. Galchin wrote: are them some CLI switches I can enable in order to better determine what parse error is?? The problem is that we're using a parser that has no support for producing parse errors (Text.ParserCombinators.ReadP). The only reason we're using this parser is because it's the only one in the core libraries. Packages like parsec cannot be used in Cabal because Cabal is a core library and parsec is not. For this reason we've been considering just copying another parser module into Cabal so that we can have saner (and quicker) parsing. Kind regards, Vasili On Wed, May 6, 2009 at 6:12 PM, Vasili I. Galchin vigalc...@gmail.com wrote: sorrily nope, Brian ... For what it's worth, Brian was right, you cannot have a trailing comma in a list field. Perhaps there was an additional error in the file that we could not see in the bit you posted. Duncan ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
[Haskell-cafe] cabal parse problems
Hello, I am trying to cabalize a package (swish .. semantic web) but am running into parse error: vigalc...@ubuntu:~/FTP/Haskell/Swish-0.2.1$ runhaskell Setup.hs configure Setup.hs: swish.cabal:24: Parse of field 'exposed-modules' failed. vigalc...@ubuntu:~/FTP/Haskell/Swish-0.2.1$ Below: is a fragment from my .cabal file. Line #24 starts with Exposed-modules: . . . Data-Files: README Exposed-modules: Swish.HaskellRDF.BuiltInDatatypes, Swish.HaskellRDF.BuiltInMap, Swish.HaskellRDF.BuiltInMapTest, Swish.HaskellRDF.BuiltInRules, Swish.HaskellRDF.ClassRestrictionRule, Swish.HaskellRDF.ClassRestrictionRuleTest, Swish.HaskellRDF.Datatype, Swish.HaskellRDF.GraphClass, Swish.HaskellRDF.GraphMatch, Any ideas why I am getting parse error? Pretty vague error message! Kind regards, Vasili ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] cabal parse problems
sorrily nope, Brian ... Vasili On Wed, May 6, 2009 at 6:06 PM, br...@lorf.org wrote: On Wednesday, 06.05.09 at 18:05, Vasili I. Galchin wrote: Exposed-modules: Swish.HaskellRDF.BuiltInDatatypes, ... Swish.HaskellRDF.GraphMatch, Think it probably doesn't like that trailing comma. ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] cabal parse problems
Am Donnerstag 07 Mai 2009 01:05:40 schrieb Vasili I. Galchin: Hello, I am trying to cabalize a package (swish .. semantic web) but am running into parse error: vigalc...@ubuntu:~/FTP/Haskell/Swish-0.2.1$ runhaskell Setup.hs configure Setup.hs: swish.cabal:24: Parse of field 'exposed-modules' failed. vigalc...@ubuntu:~/FTP/Haskell/Swish-0.2.1$ Below: is a fragment from my .cabal file. Line #24 starts with Exposed-modules: . . . Data-Files: README Exposed-modules: Swish.HaskellRDF.BuiltInDatatypes, Swish.HaskellRDF.BuiltInMap, Swish.HaskellRDF.BuiltInMapTest, Swish.HaskellRDF.BuiltInRules, Swish.HaskellRDF.ClassRestrictionRule, Swish.HaskellRDF.ClassRestrictionRuleTest, Swish.HaskellRDF.Datatype, Swish.HaskellRDF.GraphClass, Swish.HaskellRDF.GraphMatch, Any ideas why I am getting parse error? Pretty vague error message! Idea: The syntax of the value depends on the field. Field types include: token , filename , directory Either a sequence of one or more non-space non-comma characters, or a quoted string in Haskell 98 lexical syntax. Unless otherwise stated, relative filenames and directories are interpreted from the package root directory. Don't use commas. Kind regards, Vasili ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] cabal parse problems
are them some CLI switches I can enable in order to better determine what parse error is?? Kind regards, Vasili On Wed, May 6, 2009 at 6:12 PM, Vasili I. Galchin vigalc...@gmail.comwrote: sorrily nope, Brian ... Vasili On Wed, May 6, 2009 at 6:06 PM, br...@lorf.org wrote: On Wednesday, 06.05.09 at 18:05, Vasili I. Galchin wrote: Exposed-modules: Swish.HaskellRDF.BuiltInDatatypes, ... Swish.HaskellRDF.GraphMatch, Think it probably doesn't like that trailing comma. ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] cabal parse problems
I figured out myself ... even though the parse was allegedly was on line #24 .. it was below because I used as a separator '/' instead of '.'! Kind regards, Vasili On Wed, May 6, 2009 at 7:37 PM, Vasili I. Galchin vigalc...@gmail.comwrote: are them some CLI switches I can enable in order to better determine what parse error is?? Kind regards, Vasili On Wed, May 6, 2009 at 6:12 PM, Vasili I. Galchin vigalc...@gmail.comwrote: sorrily nope, Brian ... Vasili On Wed, May 6, 2009 at 6:06 PM, br...@lorf.org wrote: On Wednesday, 06.05.09 at 18:05, Vasili I. Galchin wrote: Exposed-modules: Swish.HaskellRDF.BuiltInDatatypes, ... Swish.HaskellRDF.GraphMatch, Think it probably doesn't like that trailing comma. ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Cabal and WinHugs
On Sun, 2009-04-12 at 20:02 -0700, Iavor Diatchki wrote: Hello, What is the preferred way to install a cabal package so that it works with winhugs? When I tried cabal install --user --hugs I got an error that it could not find hugsffi. I managed to get things working by manually downloading the package, and extracting the appropriate source directories to the packages folder of winhugs (i.e., basically skipping cabal) but this is kind of clunky. So to summarize, here are my two questions: 1. Am I doing something wrong, or does cabal not support WinHugs?, and 2. Does WinHugs have a user specific packages folder (so that each user can have their own set of packages)? I've never tried with winhugs and to be honest we don't test much with hugs either. Don't take that as a discouragement though, it'd be great to have better support for hugs and winhugs in the cabal tool. All it needs is someone to pay it a little attention. For the specific issue, does winhugs come with the hugsffi tool? I expect that it should do though perhaps it's hidden away in some directory. I believe that by default hugs uses $HOME/lib/packages/* for per-user packages. I'm not quite sure what winhugs does. It'd be good to adjust the defaults to make this just work. Duncan ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
[Haskell-cafe] cabal install vs. profiling
Hi, Suppose I have installed a number of libraries and have written a program using them. Now, I want to profile my program. What is the best way to get the profiling versions of the libraries installed? Thanks, David ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] cabal install vs. profiling
On Wed, Apr 15, 2009 at 11:21 AM, David F. Place d...@vidplace.com wrote: Hi, Suppose I have installed a number of libraries and have written a program using them. Now, I want to profile my program. What is the best way to get the profiling versions of the libraries installed? Thanks, David I'd chuck 'library-profiling: True' into my .cabal/config, and do 'cabal install --reinstall list of libraries' (being careful to exclude the core libraries like unix and process). -- gwern signature.asc Description: OpenPGP digital signature ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
[Haskell-cafe] cabal haddock and Paths_Xxx
Hello, cabal generates a Paths_Xxx file for me which I import and use, but cabal haddock doesn't seem to like it much. If I don't specify the generated module at all in my cabal file, cabal haddock generates visible documentation for the module, which is not what I want: the module should stay internal. If I specify it in either Exposed-Modules or Other-Modules, 'cabal configure; cabal haddock' fails with: cabal: can't find source for Paths_Xxx in ., dist/build/autogen While 'cabal configure; cabal build; cabal haddock' fails with: cabal: can't find source for module Paths_Xxx Can I have the best of both, i.e. generate docs without problems and use the generated module? Thanks, Martijn. ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
[Haskell-cafe] cabal build on mac os 10.5.6 , can't find gmp
Hi, Cabal won't build zlib because it can't find libgmp. It's there, in /sw/lib (fink installation). I've modified the bootstrap script and added -L/sw/lib to the ghc options. This is a mystery in itself because ghc is itself a fink package and should know where gmp is, so that's already a bad sign. I can get to the build step with the additional -L option but then ./ Setup fails again because it can't find gmp. Help ? Thanks, Brian ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
[Haskell-cafe] Cabal properties with conditionals
Hi. Assuming this configuration fragment: library xxx cc-options: -Wall if flag(HAVE_URANDOM) cc-options:-DHAVE_URANDOM In case the HAVE_URANDOM flag is defined, what will be the value of the used cc-options? 1) -DHAHE_URANDOM 2) -Wall -DHAHE_URANDOM Thanks Manlio ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Cabal properties with conditionals
On Sat, 2009-03-21 at 14:26 +0100, Manlio Perillo wrote: Hi. Assuming this configuration fragment: library xxx cc-options: -Wall if flag(HAVE_URANDOM) cc-options:-DHAVE_URANDOM In case the HAVE_URANDOM flag is defined, what will be the value of the used cc-options? 1) -DHAHE_URANDOM 2) -Wall -DHAHE_URANDOM The latter. Try it. In general all fields get `mappend`ed which for list-like fields means appending. For single value fields like True/False then latter fields win. Duncan ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Cabal properties with conditionals
Duncan Coutts ha scritto: On Sat, 2009-03-21 at 14:26 +0100, Manlio Perillo wrote: Hi. Assuming this configuration fragment: library xxx cc-options: -Wall if flag(HAVE_URANDOM) cc-options:-DHAVE_URANDOM In case the HAVE_URANDOM flag is defined, what will be the value of the used cc-options? 1) -DHAHE_URANDOM 2) -Wall -DHAHE_URANDOM The latter. Try it. In general all fields get `mappend`ed which for list-like fields means appending. For single value fields like True/False then latter fields win. Ok, thanks. P.S: I tried to send an email to cabal-devel some days ago, with a feature I would like to see in Cabal. But the mail was never posted to the mailing list. Is that list moderated? Should I simply fill a ticket? Duncan Manlio ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Cabal properties with conditionals
On Sat, 2009-03-21 at 23:05 +0100, Manlio Perillo wrote: P.S: I tried to send an email to cabal-devel some days ago, with a feature I would like to see in Cabal. But the mail was never posted to the mailing list. Is that list moderated? It's subscriber only, like all the haskell.org mailing lists. We got too much spam otherwise. :-( Should I simply fill a ticket? Yes, thanks very much. Duncan ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Cabal properties with conditionals
Duncan Coutts ha scritto: On Sat, 2009-03-21 at 23:05 +0100, Manlio Perillo wrote: P.S: I tried to send an email to cabal-devel some days ago, with a feature I would like to see in Cabal. But the mail was never posted to the mailing list. Is that list moderated? It's subscriber only, like all the haskell.org mailing lists. We got too much spam otherwise. :-( But I did subscribed! Should I simply fill a ticket? Yes, thanks very much. Ok. I posted some details in this thread: http://www.haskell.org/pipermail/haskell-cafe/2009-March/057923.html Duncan Manlio ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Cabal properties with conditionals
On Sun, 2009-03-22 at 01:03 +0100, Manlio Perillo wrote: Duncan Coutts ha scritto: On Sat, 2009-03-21 at 23:05 +0100, Manlio Perillo wrote: P.S: I tried to send an email to cabal-devel some days ago, with a feature I would like to see in Cabal. But the mail was never posted to the mailing list. Is that list moderated? It's subscriber only, like all the haskell.org mailing lists. We got too much spam otherwise. :-( But I did subscribed! Oh, then it should just work. There's nothing stuck in the moderation queue, I've checked (the only things that get moderated are posts from subscribers with very large attachments). Should I simply fill a ticket? Yes, thanks very much. Ok. I posted some details in this thread: http://www.haskell.org/pipermail/haskell-cafe/2009-March/057923.html Ok, great. A feature request ticket about that would be good. Duncan ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
[Haskell-cafe] Cabal and package changelog
Hi. The Cabal package description includes a property `license-file`. This property may be used by Hackage to provide a link to the license file. However I would like to have a `changelog-file`, too. So that from Hackage I can quickly check what's changed with the new version of a package. Is this feasible? Thanks Manlio Perillo ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] cabal-install 0.6.2 does not bootstrap with ghc-6.10.1 debian distribution
On Sat, 2009-03-07 at 17:51 -0800, Ahn, Ki Yung wrote: Dear Haskellers and especially who are working on cabal-install and debian packaging, I sometimes clean up .ghc and .cabal in my home directory to start from scratch because of dependency loopholes (cabal-install does not have remove option yet, so it's hard to fix when such loophole happens). Today, I had some time in the airport and decided to start from scratch again because of the dependency loophole with process 1.0.1.1 and haddock. I downloaded the most recent version of cabal-install the version 0.6.2, and found out that the ./bootstrap.sh does not work. If you could provide any details on how it does not work that would be much appreciated. Eg a log of the output from running the bootstrap. Duncan ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] cabal-install 0.6.2 does not bootstrap with ghc-6.10.1 debian distribution
Ahn, Ki Yung wrote: If anyone who are not using debian distribution ghc-6.10.1 (e.g., general linux binary ghc-6.10.1 or source compiled one) can try bootstrapping cabal-install 0.6.2 from scratch also finds the same problem, I think someone should make a ticket for cabal-install. I remember having to install zlib1g-dev using the package manager, aptitude install zlib1g-dev should suffice. If this was not the problem, please post the exact error message so we can figure out what's going wrong. Regards, -- Jochem Berndsen | joc...@functor.nl GPG: 0xE6FABFAB ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Cabal and package changelog
On Sun, Mar 8, 2009 at 7:13 AM, Manlio Perillo manlio_peri...@libero.it wrote: Hi. The Cabal package description includes a property `license-file`. This property may be used by Hackage to provide a link to the license file. However I would like to have a `changelog-file`, too. So that from Hackage I can quickly check what's changed with the new version of a package. Is this feasible? Thanks Manlio Perillo http://hackage.haskell.org/trac/hackage/ticket/244 http://hackage.haskell.org/trac/hackage/ticket/299 -- gwern ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Cabal and package changelog
On Sun, 2009-03-08 at 10:00 -0400, Gwern Branwen wrote: On Sun, Mar 8, 2009 at 7:13 AM, Manlio Perillo manlio_peri...@libero.it wrote: Hi. The Cabal package description includes a property `license-file`. This property may be used by Hackage to provide a link to the license file. However I would like to have a `changelog-file`, too. So that from Hackage I can quickly check what's changed with the new version of a package. Is this feasible? Thanks Manlio Perillo http://hackage.haskell.org/trac/hackage/ticket/244 http://hackage.haskell.org/trac/hackage/ticket/299 Thanks Gwern. Yes, we're looking for a volunteer to work on implementing this. One question is what the changelog format should be? Or should it just be uninterpreted text? One suggestion was for Hackage and the RSS feed to display the diff between the current and previous version of the changelog. Or perhaps we can do both, diff it and parse the result as haddock markup or something. So suggestions and volunteers welcome. Duncan ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Cabal and package changelog
Duncan Coutts ha scritto: On Sun, 2009-03-08 at 10:00 -0400, Gwern Branwen wrote: On Sun, Mar 8, 2009 at 7:13 AM, Manlio Perillo manlio_peri...@libero.it wrote: Hi. The Cabal package description includes a property `license-file`. This property may be used by Hackage to provide a link to the license file. However I would like to have a `changelog-file`, too. So that from Hackage I can quickly check what's changed with the new version of a package. Is this feasible? Thanks Manlio Perillo http://hackage.haskell.org/trac/hackage/ticket/244 http://hackage.haskell.org/trac/hackage/ticket/299 Thanks Gwern. Yes, we're looking for a volunteer to work on implementing this. One question is what the changelog format should be? Or should it just be uninterpreted text? One suggestion was for Hackage and the RSS feed to display the diff between the current and previous version of the changelog. Or perhaps we can do both, diff it and parse the result as haddock markup or something. Personally, I find a format like: http://divmod.org/trac/browser/trunk/Nevow/NEWS.txt simple, compact and flexible. GNU Changelog format is probably an overkill, since nowadays we have good revision control systems. However GNU Changelog format *may* be supported (perhaps the changelog format can be specified in a Cabal property). So suggestions and volunteers welcome. Duncan Manlio ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] cabal-install 0.6.2 does not bootstrap with ghc-6.10.1 debian distribution
Duncan Coutts 쓴 글: On Sat, 2009-03-07 at 17:51 -0800, Ahn, Ki Yung wrote: Dear Haskellers and especially who are working on cabal-install and debian packaging, I sometimes clean up .ghc and .cabal in my home directory to start from scratch because of dependency loopholes (cabal-install does not have remove option yet, so it's hard to fix when such loophole happens). Today, I had some time in the airport and decided to start from scratch again because of the dependency loophole with process 1.0.1.1 and haddock. I downloaded the most recent version of cabal-install the version 0.6.2, and found out that the ./bootstrap.sh does not work. If you could provide any details on how it does not work that would be much appreciated. Eg a log of the output from running the bootstrap. Duncan I am using Debian unstable. The version of GHC debian package is 6.10.1+dfsg1-13, and installed Haskell libraries (debian packages) are: kya...@kyavaio:~$ ghc-pkg list /usr/lib/ghc-6.10.1/./package.conf: Cabal-1.6.0.1, Diff-0.1.2, HGL-3.2.0.0, HUnit-1.2.0.3, QuickCheck-2.1.0.1, Stream-0.2.2, X11-1.4.5, array-0.2.0.0, arrows-0.4.1, base-3.0.3.0, base-4.0.0.0, binary-0.5, bytestring-0.9.1.4, cairo-0.10.0, cgi-3001.1.7.1, containers-0.2.0.0, directory-1.0.0.2, editline-0.2.1.0, fgl-5.4.2.2, filepath-1.1.0.1, gconf-0.10.0, (ghc-6.10.1), ghc-prim-0.1.0.0, gio-0.10.0, glade-0.10.0, glib-0.10.0, gnomevfs-0.10.0, gstreamer-0.10.0, gtk-0.10.0, gtkglext-0.10.0, gtksourceview2-0.10.0, haskell98-1.0.1.0, hpc-0.5.0.2, html-1.0.1.2, integer-0.1.0.0, irc-0.4.3, mtl-1.1.0.2, network-2.2.0.1, old-locale-1.0.0.1, old-time-1.0.0.1, packedstring-0.1.0.1, parallel-1.1.0.0, parsec-3.0.0, pretty-1.0.1.0, process-1.0.1.0, random-1.0.0.1, rts-1.0, stm-2.1.1.2, svgcairo-0.10.0, syb-0.1.0.0, syb-with-class-0.5.1, tagsoup-0.6, template-haskell-2.3.0.0, time-1.1.2.3, unix-2.3.1.0, utf8-string-0.3.4, xhtml-3000.2.0.1 Bootstrap fails like this: kya...@kyavaio:~/tmp/cabal-install-0.6.2$ sh bootstrap.sh Checking installed packages for ghc-6.10.1... The Haskell package 'parsec' is required but it is not installed. If you are using a ghc package provided by your operating system then install the corresponding packages for 'parsec' and 'network'. If you built ghc from source with only the core libraries then you should install these extra packages. You can get them from hackage. Error during cabal-install bootstrap: The Haskell package 'parsec' is required but it is not installed. P.S. Note, parsec and network are installed in the system using debian distribution packages. -- Ahn, Ki Yung ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] cabal-install 0.6.2 does not bootstrap with ghc-6.10.1 debian distribution
On Sun, 2009-03-08 at 15:33 -0700, Ahn, Ki Yung wrote: I am using Debian unstable. The version of GHC debian package is 6.10.1+dfsg1-13, and installed Haskell libraries (debian packages) are: kya...@kyavaio:~$ ghc-pkg list /usr/lib/ghc-6.10.1/./package.conf: packedstring-0.1.0.1, parallel-1.1.0.0, parsec-3.0.0, Bootstrap fails like this: kya...@kyavaio:~/tmp/cabal-install-0.6.2$ sh bootstrap.sh Checking installed packages for ghc-6.10.1... The Haskell package 'parsec' is required but it is not installed. If you are using a ghc package provided by your operating system then install the corresponding packages for 'parsec' and 'network'. If you built ghc from source with only the core libraries then you should install these extra packages. You can get them from hackage. Error during cabal-install bootstrap: The Haskell package 'parsec' is required but it is not installed. What it doesn't say is that it's looking for parsec version 2. P.S. Note, parsec and network are installed in the system using debian distribution packages. For some reason the debian package maintainers decided to build everything against parsec 3 rather than parsec 2 which everyone else is using. Personally I think this was not a wise decision. Indeed it may be a problem when it comes to supporting the Haskell platform because the first version will use parsec 2. Any major parsec version transition in the Haskell platform will be made by a community decision process. What I've done is dropped the check for parsec in the bootstrap.sh. The only reason we're looking for parsec is because it's needed by network which we also need. So it's not strictly necessary that we check for it. Duncan ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Cabal and package changelog
Manlio Perillo wrote: Duncan Coutts ha scritto: On Sun, 2009-03-08 at 10:00 -0400, Gwern Branwen wrote: http://hackage.haskell.org/trac/hackage/ticket/244 http://hackage.haskell.org/trac/hackage/ticket/299 Thanks Gwern. Yes, we're looking for a volunteer to work on implementing this. One question is what the changelog format should be? Or should it just be uninterpreted text? One suggestion was for Hackage and the RSS feed to display the diff between the current and previous version of the changelog. Or perhaps we can do both, diff it and parse the result as haddock markup or something. Personally, I find a format like: http://divmod.org/trac/browser/trunk/Nevow/NEWS.txt simple, compact and flexible. Nice, simple, and to the point. It reminds me a lot of (a stripped down version of) YAML. If we invent a new format, using YAML as the syntax would make it easy to manipulate since there are already tools and libraries out there for that. GNU Changelog format is probably an overkill, since nowadays we have good revision control systems. However GNU Changelog format *may* be supported (perhaps the changelog format can be specified in a Cabal property). Like YAML, GNU Changelog has enough history to have a large suite of tools for manipulating the format. It's a bit heavy-handed in this day and age, but many VCSes can generate it automatically. As a developer, one of my criteria would be to keep it as lightweight as possible (though more formal than raw text). The more work changelogs take, the less likely they are to be maintained/accurate. As a UI issue, I would amend the proposal in ticket #244. Because of the way Darcs works around tag boundaries, I've often been lax about tagging more frequently than major versions. It'd be nicer to open up the pending changelog amendment in $EDITOR so people can adjust it before publishing the sdist. (Perhaps with a flag to enable/disable this behavior for people who want more automated setups.) Also helpful would be a command to inject things into the changelog from outside the VCS, at times other than when publishing. This is helpful for when you realize a version control message omitted details about changes, but you can't change the patch, and you don't want to forget the details between now and when publishing the new sdist to Hackage. Essentially this means the tools should have a pending file for the changelog which can be freely modified outside of the system (with some in-system tracking so that importing the VCS log and editing it does the right thing when trying to import the VCS log again later). Actually, just having a tool to amend the pending file could be enough. Most VCSes have hooks for being able to run things before or after committing a patch. Thus, just have a tutorial on setting up the common VCSes to commit the same message to the changelog as to the version control. -- Live well, ~wren ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
[Haskell-cafe] cabal-install 0.6.2 does not bootstrap with ghc-6.10.1 debian distribution
Dear Haskellers and especially who are working on cabal-install and debian packaging, I sometimes clean up .ghc and .cabal in my home directory to start from scratch because of dependency loopholes (cabal-install does not have remove option yet, so it's hard to fix when such loophole happens). Today, I had some time in the airport and decided to start from scratch again because of the dependency loophole with process 1.0.1.1 and haddock. I downloaded the most recent version of cabal-install the version 0.6.2, and found out that the ./bootstrap.sh does not work. So, I had to bootstrap from version 0.6.2 and do cabal update and cabal upgrade cabal-install to upgrade to 0.6.2. I am not sure whether this is a cabal-install problem or debian dstribution ghc-6.10.1 packaging probelm, since I have not tried to test this with any other ghc-6.10.1 distribution. If anyone who are not using debian distribution ghc-6.10.1 (e.g., general linux binary ghc-6.10.1 or source compiled one) can try bootstrapping cabal-install 0.6.2 from scratch also finds the same problem, I think someone should make a ticket for cabal-install. Thanks, Ahn, Ki Yung ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Cabal and `main-is` field
On Sun, Mar 1, 2009 at 11:56, Duncan Coutts duncan.cou...@worc.ox.ac.uk wrote: That's because it's a bug, not a feature. :-) Be careful of using this feature as we might fix it. I've wished for this feature, and have Cabal files right now that would be cleaner with it. Is there something technically wrong or undesirable about this feature that necessitates fixing? Denis ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Cabal and `main-is` field
On Mon, 2009-03-02 at 07:15 -0700, Denis Bueno wrote: On Sun, Mar 1, 2009 at 11:56, Duncan Coutts duncan.cou...@worc.ox.ac.uk wrote: That's because it's a bug, not a feature. :-) Be careful of using this feature as we might fix it. I've wished for this feature, and have Cabal files right now that would be cleaner with it. Is there something technically wrong or undesirable about this feature that necessitates fixing? If it's supposed to work it should work consistently. It's a quirk that to support old-style .cabal files we allow build-depends but not other fields in the global section. If we do it properly we should either allow all fields there, or perhaps in an explicit common section or something. I hope we can address this and related limitations and quirks in the Cabal-1.8 development cycle. If you want to help out with that let me know and I can give you some pointers. Duncan ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
[Haskell-cafe] Cabal and `main-is` field
Hi. I have started to use Cabal for a small project where I have to build several executables. The project layout is something like this: / bin/ a.hs b.hs src/ X.hs Y.hs The Cabal configuration file is something like: executable a build-depends: haskell98, base, ... main-is: a.hs hs-source-dirs:src bin other-modules: X This is perfectly reasonable, but it is odd, IMHO. I don't understand why `main-is` is relative to `hs-source-dirs`. What is the rationale? After all, there is only one executable that can be specified in the `executable` block. The configuration file should be, instead (IMHO, of course): executable a build-depends: haskell98, base, ... main-is: bin/a.hs hs-source-dirs:src other-modules: X Another problem I have noted, is that if I specify `main-is` field two times, no error is reported. Simply, Cabal uses the last directive. One last thing: is it possible to define macros in Cabal? In my package, I have n executables, that have many dependencies in common. I would like to avoid having to repeat the same dependencies for each executable block. Thanks Manlio Perillo ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Cabal and `main-is` field
On Sun, Mar 1, 2009 at 10:45 AM, Manlio Perillo manlio_peri...@libero.it wrote: Hi. ... One last thing: is it possible to define macros in Cabal? In my package, I have n executables, that have many dependencies in common. I would like to avoid having to repeat the same dependencies for each executable block. Thanks Manlio Perillo You can hoist the common build-depends out of the executable stanzas. ie. from xmonad-utils.cabal: build-depends: base4, X11=1.3, ghc=6.8, unix, random=1.0 ... executable: hxsel main-is:Hxsel.hs hs-source-dirs: src ghc-options:-funbox-strict-fields -Wall ghc-prof-options: -prof -auto-all executable: hxput main-is:Hxput.hs hs-source-dirs: src ghc-options:-funbox-strict-fields -Wall ghc-prof-options: -prof -auto-all Notice that though hxput and hxsel need the packages in the top-level build-depends, they don't need to declare it. -- gwern signature.asc Description: OpenPGP digital signature ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Cabal and `main-is` field
Gwern Branwen ha scritto: [...] You can hoist the common build-depends out of the executable stanzas. ie. from xmonad-utils.cabal: build-depends: base4, X11=1.3, ghc=6.8, unix, random=1.0 ... executable: hxsel main-is:Hxsel.hs hs-source-dirs: src ghc-options:-funbox-strict-fields -Wall ghc-prof-options: -prof -auto-all executable: hxput main-is:Hxput.hs hs-source-dirs: src ghc-options:-funbox-strict-fields -Wall ghc-prof-options: -prof -auto-all Notice that though hxput and hxsel need the packages in the top-level build-depends, they don't need to declare it. Thanks. From documentation it was not clear this feature. However, what happens if hxput add a build-depends field? Will this override the global field? Manlio Perillo ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Cabal and `main-is` field
On Sun, Mar 1, 2009 at 12:10 PM, Manlio Perillo manlio_peri...@libero.it wrote: Gwern Branwen ha scritto: [...] You can hoist the common build-depends out of the executable stanzas. ie. from xmonad-utils.cabal: build-depends: base4, X11=1.3, ghc=6.8, unix, random=1.0 ... executable: hxsel main-is: Hxsel.hs hs-source-dirs: src ghc-options: -funbox-strict-fields -Wall ghc-prof-options: -prof -auto-all executable: hxput main-is: Hxput.hs hs-source-dirs: src ghc-options: -funbox-strict-fields -Wall ghc-prof-options: -prof -auto-all Notice that though hxput and hxsel need the packages in the top-level build-depends, they don't need to declare it. Thanks. From documentation it was not clear this feature. However, what happens if hxput add a build-depends field? Will this override the global field? Manlio Perillo It doesn't override, but adds to. If the toplevel declares 'base', and then hxput does 'build-depends: random', hxput will be built against 'base, random'. -- gwern signature.asc Description: OpenPGP digital signature ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Cabal and `main-is` field
On Sun, 2009-03-01 at 18:10 +0100, Manlio Perillo wrote: Gwern Branwen ha scritto: [...] You can hoist the common build-depends out of the executable stanzas. ie. from xmonad-utils.cabal: build-depends: base4, X11=1.3, ghc=6.8, unix, random=1.0 ... executable: hxsel main-is:Hxsel.hs hs-source-dirs: src ghc-options:-funbox-strict-fields -Wall ghc-prof-options: -prof -auto-all executable: hxput main-is:Hxput.hs hs-source-dirs: src ghc-options:-funbox-strict-fields -Wall ghc-prof-options: -prof -auto-all Notice that though hxput and hxsel need the packages in the top-level build-depends, they don't need to declare it. Thanks. From documentation it was not clear this feature. That's because it's a bug, not a feature. :-) Be careful of using this feature as we might fix it. Duncan ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Cabal and `main-is` field
Duncan Coutts ha scritto: [...] Notice that though hxput and hxsel need the packages in the top-level build-depends, they don't need to declare it. Thanks. From documentation it was not clear this feature. That's because it's a bug, not a feature. :-) Be careful of using this feature as we might fix it. Thanks, I was going to fix my Cabal configuration right now! Manlio Perillo ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
[Haskell-cafe] Cabal package bug?
hello all, I've used cabal to install package haskell-src-1.0.1.3 under ghc 6.10.1; Apparently, it worked fine! However, function parseModule has been given the type: parseModule :: String - ParseResult haskell-src-1.0.1.3:Language.Haskell.Syntax.HsModule instead of simply parseModule :: String - ParseResult HsModule as described in the Language.Haskell.Parser module; This causes conflicting types for all my other modules! Can anyone please help me on this? Any help would be very much appreciated! bests, joao -- João Paulo Fernandes Departamento de Informática Universidade do Minho www.di.uminho.pt/~jpaulo ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
[Haskell-cafe] Cabal haskell-src-1.0.1.3 package bug?
[now with the name of the package on subject; appologies for multiple emails] hello all, I've used cabal to install package haskell-src-1.0.1.3 under ghc 6.10.1; Apparently, it worked fine! However, function parseModule has been given the type: parseModule :: String - ParseResult haskell-src-1.0.1.3:Language.Haskell.Syntax.HsModule instead of simply parseModule :: String - ParseResult HsModule as described in the Language.Haskell.Parser module; This causes conflicting types for all my other modules! Can anyone please help me on this? Any help would be very much appreciated! bests, joao -- João Paulo Fernandes Departamento de Informática Universidade do Minho www.di.uminho.pt/~jpaulo ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Cabal package bug?
On Thu, 2009-02-26 at 08:00 +, jpa...@di.uminho.pt wrote: hello all, I've used cabal to install package haskell-src-1.0.1.3 under ghc 6.10.1; Apparently, it worked fine! However, function parseModule has been given the type: parseModule :: String - ParseResult haskell-src-1.0.1.3:Language.Haskell.Syntax.HsModule instead of simply parseModule :: String - ParseResult HsModule as described in the Language.Haskell.Parser module; This causes conflicting types for all my other modules! This is the diamond dependency problem http://blog.well-typed.com/2008/04/the-dreaded-diamond-dependency-problem/ Can anyone please help me on this? Most likely you've got two versions of haskell-src installed and some packages are built against one version and some built against another. GHC is showing you the fully qualified name here exactly because it would otherwise refer to a different version. So here's the thing, cabal-install makes sure that whatever you install is self-consistent (no conflicting deps). So when you did $ cabal install haskell-src and it installed haskell-src-1.0.1.3, it made sure that the deps of that package were consistent. That *does not* mean that it's dependencies are consistent with every other package you've got installed. It does not guarantee global consistency. Only local consistency of the thing you asked to install. So what could you do. Well if you were using a .cabal file for your own program then cabal install on that would also guarantee consistency for the dependencies of your package. It would try to achieve that from the current situation by rebuilding packages against different versions of their dependencies. If you don't have a .cabal file for your project you can still achieve the same effect by asking cabal install to install all of the packages that your project depends on: cabal install --dry-run haskell-src blah blah blah That's asking it to find a way of installing all those packages with consistent deps (which may involve reinstalling some). The --dry-run will make it show a list of what it would install and some indication of why. If you use -v too it'll tell you for example if it's going to rebuild a package against a different version of one of it's dependencies. Duncan ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Cabal: local documentation
Duncan Coutts wrote:
On Tue, 2009-02-24 at 17:42 +0100, Svein Ove Aas wrote:
2009/2/24 Felipe Lessa felipe.le...@gmail.com:
Just pass '--enable-documentation' to 'cabal install'. On *nix they're
generated at ~/.cabal/share/doc.
Or edit ~/.cabal/config and set the documentation key to True
However this does not maintain a complete module index like I think
Martijn is after.
Thank you all for the very helpful suggestions. I edited ~/.cabal/config
to generate documentation by default, and I set up Apache to serve the
documentation from http://haddock. I put a small PHP (gasp!) file in
~/.cabal/share/doc that lists all packages for which there is
documentation; see below. This is a good enough approximation for now.
Thanks again!
Martijn.
---
html
head
titleLocal Hackage packages/title
/head
body
h1Local Hackage packages/h1
ul
?
$handle = opendir(dirname(__FILE__));
while (false !== ($pkg = readdir($handle))) {
if ($pkg == . || $pkg == ..) continue;
$link = $pkg/html/;
if (file_exists(${link}index.html)) {
echo 'lia href=' . $link . '' . $pkg . '/a/li' . \n;
}
}
?
/ul
/body
/html
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[Haskell-cafe] cabal install profiling and documentation
i've gone and cabal installed a lot of packages, but now i want to go back and install their profiling libraries and documentation. is there an easy way of doing this, short of reinstalling all of them (in the proper dependency order)? ben ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
[Haskell-cafe] Cabal: local documentation
Hello, Can cabal automatically generate local documentation for packages I install? It'd be awesome if it generated a page like [1] for locally installed packages. Thanks, Martijn. [1] http://www.haskell.org/ghc/dist/current/docs/libraries/ ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Cabal: local documentation
Just pass '--enable-documentation' to 'cabal install'. On *nix they're generated at ~/.cabal/share/doc. HTH, -- Felipe. ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Cabal: local documentation
2009/2/24 Felipe Lessa felipe.le...@gmail.com: Just pass '--enable-documentation' to 'cabal install'. On *nix they're generated at ~/.cabal/share/doc. Or edit ~/.cabal/config and set the documentation key to True ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Cabal: local documentation
On Tue, 2009-02-24 at 17:42 +0100, Svein Ove Aas wrote: 2009/2/24 Felipe Lessa felipe.le...@gmail.com: Just pass '--enable-documentation' to 'cabal install'. On *nix they're generated at ~/.cabal/share/doc. Or edit ~/.cabal/config and set the documentation key to True However this does not maintain a complete module index like I think Martijn is after. It would be great if someone volunteered to implement that. There's a ticket open for it: http://hackage.haskell.org/trac/hackage/ticket/206 One question is where to put a central index. This is especially true for the case of global installations. For per-user installs it's probably fine to use ~/.cabal/share/doc/index.html or something, but for the case of /usr/local that's certainly not ok. Needs some thought. Duncan ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Cabal and more than one version
Presumably the template-haskell-2.3 package does not build with ghc-6.8 but fails to correctly specify the version of base or ghc that it requires. If it did then we would have a better chance to get this right. Yes, this is certainly an issue in general with template-haskell-2.3. How do we fix this? Another possible workaround... If you avoid using the flag hack then the solver would not have to choose so early which version of template-haskell to commit to and it would be able to pick the right version later. Though then you need an alternative method of finding which version of template-haskell you ended up with. You could do it with some custom code in Setup.hs. I don't mind using a different approach. How do I detect which version of template-haskell I'm using in Setup.lhs that is backwords compatible to Cabal 1.2? I would like to support both template-haskell-2.2 and -2.3 by deriving EMGM type representations for it, but the later has the 'Loc' datatype. So, I'm currently using the CPP flag to determine whether 'Loc' is available or not: *#ifdef TH_LOC_DERIVEREP **-- This type is only provided in template-haskell-2.3 (included with GHC 6.10) **-- and up. *$(derive ''Loc) *#endif * Thanks, Sean ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Cabal and more than one version
On Tue, 2009-02-03 at 10:38 +0100, Sean Leather wrote: Presumably the template-haskell-2.3 package does not build with ghc-6.8 but fails to correctly specify the version of base or ghc that it requires. If it did then we would have a better chance to get this right. Yes, this is certainly an issue in general with template-haskell-2.3. How do we fix this? We patch the .cabal file in the current darcs version so that its fixed in the next release. Another possible workaround... If you avoid using the flag hack then the solver would not have to choose so early which version of template-haskell to commit to and it would be able to pick the right version later. Though then you need an alternative method of finding which version of template-haskell you ended up with. You could do it with some custom code in Setup.hs. I don't mind using a different approach. How do I detect which version of template-haskell I'm using in Setup.lhs that is backwords compatible to Cabal 1.2? You get access to the LocalBuildInfo which contains the packageDeps, the exact package identifiers. You can find the package you're after and find its version. Then you can do one of two things. You could generate a .h file either during post-conf or pre-build or you could add a cpp option by updating the localPkgDescr in the LocalBuildInfo to add an extra cpp option. It's not necessarily short or pretty, but it should be possible to make it work with Cabal-1.2 and 1.6. Duncan ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Cabal and more than one version
Hi, I'm bringing up an old thread, because it's very relevant to my problem. On Tue, Nov 18, 2008 at 22:30, Duncan Coutts wrote: On Tue, 2008-11-18 at 01:48 -0800, Jason Dusek wrote: I'd like to be able to do something like: if (template-haskell 2.3) cpp-options: -D TH_THE_YOUNGER else cpp-options: -D TH_THE_ELDER I guess this kind of thing is not possible at present? It is possible, in two different ways. The easiest way is that if you're using Cabal-1.6 then it provides cpp macros to test the version number of packages you're using. #if MIN_VERSION_template_haskell(2,3,0) ... #elseif ... #endif The alternative that works back to Cabal-1.2 is to use: flag newer-th ... if flag(newer-th) build-depends: template-haskell = 2.3 cpp-options: -D TH_THE_ELDER else build-depends: template-haskell 2.3 cpp-options: -D TH_THE_YOUNGER Either I'm doing something wrong or this doesn't work for cabal-install and GHC 6.8.3. I used the flag newer-th approach in EMGM: https://svn.cs.uu.nl:12443/viewvc/dgp-haskell/EMGM/tags/emgm-0.2/emgm.cabal?view=markup [...] flag th23 description: Define a CPP flag that enables conditional compilation for template-haskell package version 2.3 and newer. Library [...] build-depends: base = 3.0 4.0, template-haskell 2.4 -- Include deriveRep for Loc. This was introduced with -- template-haskell-2.3, included with GHC 6.10. if flag(th23) build-depends: template-haskell = 2.3 cpp-options: -DTH_LOC_DERIVEREP else build-depends: template-haskell 2.3 [...] When I run cabal install emgm (with GHC 6.8.3 and either Cabal 1.2 or 1.6), it tries (and fails) to install template-haskell-2.3. That's exactly what I don't want. Any suggestions? Thanks, Sean ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] cabal list can't find Glob.cabal file?
On Mon, Feb 2, 2009 at 12:01 AM, Duncan Coutts duncan.cou...@worc.ox.ac.uk wrote: The solution is to upgrade: $ cabal install cabal-install $ cabal --version cabal-install version 0.6.0 using version 1.6.0.1 of the Cabal library Yes, this was the problem, despite me upgrading cabal-install before mailing the list. Alas, an old cabal binary was being picked up from /usr/local/bin. Cheers for the help, D ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Cabal and more than one version
On Mon, 2009-02-02 at 13:18 +0100, Sean Leather wrote: Either I'm doing something wrong or this doesn't work for cabal-install and GHC 6.8.3. I used the flag newer-th approach in EMGM: https://svn.cs.uu.nl:12443/viewvc/dgp-haskell/EMGM/tags/emgm-0.2/emgm.cabal?view=markup [...] flag th23 description: Define a CPP flag that enables conditional compilation for template-haskell package version 2.3 and newer. Library [...] build-depends: base = 3.0 4.0, template-haskell 2.4 -- Include deriveRep for Loc. This was introduced with -- template-haskell-2.3, included with GHC 6.10. if flag(th23) build-depends: template-haskell = 2.3 cpp-options: -DTH_LOC_DERIVEREP else build-depends: template-haskell 2.3 [...] When I run cabal install emgm (with GHC 6.8.3 and either Cabal 1.2 or 1.6), it tries (and fails) to install template-haskell-2.3. That's exactly what I don't want. Any suggestions? No immediate workarounds, though you could perhaps try reversing the condition or the default of the flag. Though that might just reverse the problem case. Presumably the template-haskell-2.3 package does not build with ghc-6.8 but fails to correctly specify the version of base or ghc that it requires. If it did then we would have a better chance to get this right. In general this is going to be hard. The solver is not that smart and it deliberately does no backtracking (as a defence against searching too much given that it has no smart methods for pruning the search space). This is just the kind of situation where we need a proper solver which is probably a couple months work. Another possible workaround... If you avoid using the flag hack then the solver would not have to choose so early which version of template-haskell to commit to and it would be able to pick the right version later. Though then you need an alternative method of finding which version of template-haskell you ended up with. You could do it with some custom code in Setup.hs. Duncan ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
[Haskell-cafe] cabal list can't find Glob.cabal file?
I get a curious message when trying to run 'cabal list': $ cabal list omit some lines... .. Latest version available: 0.3 Category: Network Synopsis: Pure bindings for the MaxMind IP database. License: OtherLicense cabal: Couldn't read cabal file ./Glob/0.1/Glob.cabal Any ideas? As far as Hackage and the local index are concerned, 0.1 isn't even a recent version of Glob. Why should it be looking for the file? cabal-install version 0.5.1 using version 1.4.0.1 of the Cabal library -- Dougal Stanton dou...@dougalstanton.net // http://www.dougalstanton.net ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] cabal list can't find Glob.cabal file?
On Sun, 2009-02-01 at 23:04 +, Dougal Stanton wrote: I get a curious message when trying to run 'cabal list': $ cabal list omit some lines... .. Latest version available: 0.3 Category: Network Synopsis: Pure bindings for the MaxMind IP database. License: OtherLicense cabal: Couldn't read cabal file ./Glob/0.1/Glob.cabal Cabal-1.4 cannot read some .cabal files that use new syntactic constructs added in Cabal-1.6. The cabal-install program does not handle this fact very gracefully. Any ideas? As far as Hackage and the local index are concerned, 0.1 isn't even a recent version of Glob. Why should it be looking for the file? It's a good point, it should not need to parse the .cabal file of the older version. However that's just a performance thing, the newer versions will have the same issue. cabal-install version 0.5.1 using version 1.4.0.1 of the Cabal library The solution is to upgrade: $ cabal install cabal-install $ cabal --version cabal-install version 0.6.0 using version 1.6.0.1 of the Cabal library Duncan ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Cabal dependencies
On Thu, 2009-01-15 at 18:38 -0500, Stephen Hicks wrote: Hi, I'm having some difficulty specifying dependencies in my .cabal file for a package I'm looking to upload to hackage soon. The difficulty is as follows. I basically want to specify parsec (= 2.1 3.0.0) || ( 3.0.0 4) When we first introduced this kind of version range syntax we were unsure if it was too general or not. We want to be able to translate into other systems and they're typically more restrictive. Internally we can easily represent the above expression as it uses arbitrary unions and intersections. However the external parser still only allows two clauses (I think it's two). Personally I'm all for lifting that restriction. Yes it makes it a bit harder for translating into some systems but I don't see that as a real issue. If the package really does require the more complex version range then forcing the package author to lie by using a less expressive syntax does not help. We can still make the same choice at the point when we translate into native packages. Also, as it happens there is a way of getting around the restriction anyway, which makes the restriction effectively pointless. That is by listing the same dependency more than once. All the version constraints must be satisfied so you can write: build-depends: parsec = 2.1 4, parsec 3.0.0 || 3.0.0 (have I got that right?) So I'd be interested to get feedback on lifting the restriction and the impact that might have on translation into native packages. The problem is that 3.0.0 as it exists on hackage is missing a constructor that I need (namely, Postfix, in the compatibility module). The bug was fixed and will presumably work fine if a newer version of parsec is ever uploaded to hackage, and my package works fine with older parsecs as well - I just want to exclude this one version. How can I go about doing that? Try the above. A secondary question is this - I can actually compile with version 3.0.0 by just not using this constructor, although it does reduce the package's functionality. I've seen flags in various .cabal files, and presumably I could invent a flag to make it work with 3.0.0, but I'm confused about how these flags are set. Yes, if you need compatibility with older versions of Cabal then you'd need to use a flag. If you're prepared to require Cabal-1.6 or later then you can use the cpp macro: #if MIN_VERSION_parsec(3,0,0) though of course that only gives you = 3.0.0, you'd need more tricky combinations to get == 3.0.0, perhaps by assuming = 3.0.1 is ok. For older Cabal versions the main option is a flag, like so: flag parsec3 ... if flag(parsec3) build-depends: parsec == 3.0.0 cpp-options: -DUSING_BAD_PARSEC else build-depends: parsec 3.0.0 || 3.0.0 Specifically, cabal-install has never asked me anything about flags, so what's the point? Or does it automatically set whichever flags satisfy the dependencies? It tries to work out what flags to set automatically (based on the platform, the available packages and flag defaults in each package). You can override them from the command line if you want to or need to. Duncan ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
[Haskell-cafe] Cabal dependencies
Hi, I'm having some difficulty specifying dependencies in my .cabal file for a package I'm looking to upload to hackage soon. The difficulty is as follows. I basically want to specify parsec (= 2.1 3.0.0) || ( 3.0.0 4) The problem is that 3.0.0 as it exists on hackage is missing a constructor that I need (namely, Postfix, in the compatibility module). The bug was fixed and will presumably work fine if a newer version of parsec is ever uploaded to hackage, and my package works fine with older parsecs as well - I just want to exclude this one version. How can I go about doing that? A secondary question is this - I can actually compile with version 3.0.0 by just not using this constructor, although it does reduce the package's functionality. I've seen flags in various .cabal files, and presumably I could invent a flag to make it work with 3.0.0, but I'm confused about how these flags are set. Specifically, cabal-install has never asked me anything about flags, so what's the point? Or does it automatically set whichever flags satisfy the dependencies? Thanks, steve ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
