Re: [fpc-pascal] Basically on the right track?
On 12-12-29 12:10 PM, Leonardo M. Ramé wrote: From: Patrick To: FPC-Pascal users discussions Cc: Sven Barth Sent: Saturday, December 29, 2012 1:18 PM Subject: Re: [fpc-pascal] Basically on the right track? I was able to compile helloworld2 and run it without errors. Sorry for the long email ! thanks for reading it-Patrick Patrick, btw, do you know you can create GTK2 (and QT, Win32, etc) apps with FreePascal without bothering with low level GTK2 libraries?, please take a look at the Lazarus Project (http://lazarus.freepascal.org), it'll make your life much, much easier. Regards, -- Leonardo M. Ramé http://leonardorame.blogspot.com ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal Hi Leonardo Thanks for your post. Actually I want to do some wacky stuff mixing Pascal, Ada and Lua. I think I will need to learn the lower level stuff. Happy new year :) ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] Basically on the right track?
> > From: Patrick >To: FPC-Pascal users discussions >Cc: Sven Barth >Sent: Saturday, December 29, 2012 1:18 PM >Subject: Re: [fpc-pascal] Basically on the right track? > > >I was able to compile helloworld2 and run it without errors. > >Sorry for the long email ! thanks for reading it-Patrick > Patrick, btw, do you know you can create GTK2 (and QT, Win32, etc) apps with FreePascal without bothering with low level GTK2 libraries?, please take a look at the Lazarus Project (http://lazarus.freepascal.org), it'll make your life much, much easier. Regards, -- Leonardo M. Ramé http://leonardorame.blogspot.com ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] Basically on the right track?
Hi Again Sven I don't know how I could have compiled the wrong file, I will stick to the Makefiles from now on to keep this simpler. I switched over to Mint (I almost lost 2.5 TBs of data! but all is well now). I installed 2.6 from the repository. I have not installed a source based fpc. I am still getting gtk related errors. If you could help me just a little more that would be great. I wanted to see how far the problem spreads so I took the package folder from the source folder I downloaded and made a shell script that looks like this: make ./aspell make ./bfd make ./bzip2 and so on... the results from calling make on each individual folder in the packages folder was not so bad: :bash Pat_Make.sh > aaa_results /usr/bin/ld: warning: ./link.res contains output sections; did you forget -T? /usr/bin/ld: warning: ./link.res contains output sections; did you forget -T? make[1]: *** [all] Error 1 make: *** [fastcgi] Error 2 make[1]: *** [all] Error 1 make: *** [fcl-web] Error 2 /usr/bin/ld: warning: ./link.res contains output sections; did you forget -T? fastcgi and fcl-web seemed to give errors but that was all. when I called make from inside gtk2 I got this: :make /usr/bin/ppcx64 -Fusrc -Fusrc/glib -Fusrc/atk -Fusrc/pango -Fusrc/pangocairo -Fusrc/gtk+/gdk-pixbuf -Fusrc/gtk+/gdk -Fusrc/gtk+/gtk -Fusrc/libglade -Fusrc/gtkglext -Fusrc/gtkext -Fusrc/gtk2x11 -Fu/usr/lib/fpc/2.6.0/units/x86_64-linux/rtl -Fu/usr/lib/fpc/2.6.0/units/x86_64-linux/pasjpeg -Fu/usr/lib/fpc/2.6.0/units/x86_64-linux/hash -Fu/usr/lib/fpc/2.6.0/units/x86_64-linux/paszlib -Fu/usr/lib/fpc/2.6.0/units/x86_64-linux/fcl-base -Fu/usr/lib/fpc/2.6.0/units/x86_64-linux/fcl-image -Fu/usr/lib/fpc/2.6.0/units/x86_64-linux/x11 -Fu/usr/lib/fpc/2.6.0/units/x86_64-linux/cairo -Fisrc/gtk2x11/include -FE. -FUunits/x86_64-linux -Cg -Fl/usr/lib/gcc/x86_64-linux-gnu/4.7 -Flinclude -Fl/etc/ld.so.conf.d/*.conf -dx86_64 src/buildgtk2.pp Free Pascal Compiler version 2.6.0-6 [2012/10/05] for x86_64 Copyright (c) 1993-2011 by Florian Klaempfl and others Target OS: Linux for x86-64 Compiling src/buildgtk2.pp Compiling ./src/gtk+/gtk/gtk2.pas Compiling ./src/glib/glib2.pas goption.inc(67,1) Warning: Possible library conflict: symbol "g_cclosure_marshal_BOOLEAN__FLAGS" from library "libglib-2.0.so" also found in library "libgobject-2.0.so" glib2.pas(1692,54) Warning: Converting pointers to signed integers may result in wrong comparison results and range errors, use an unsigned type instead. glib2.pas(1719,17) Warning: Converting pointers to signed integers may result in wrong comparison results and range errors, use an unsigned type instead. Compiling ./src/atk/atk.pas Compiling ./src/pango/pango.pas Compiling ./src/gtk+/gdk-pixbuf/gdk2pixbuf.pas Compiling ./src/gtk+/gdk/gdk2.pas gdktypes.inc(156,33) Warning: Converting pointers to signed integers may result in wrong comparison results and range errors, use an unsigned type instead. gdktypes.inc(161,28) Warning: Converting pointers to signed integers may result in wrong comparison results and range errors, use an unsigned type instead. Compiling ./src/libglade/libglade2.pas Compiling ./src/gtkglext/gdkglext.pas Compiling ./src/gtkglext/gtkglext.pas Compiling ./src/gtkext/gtk2ext.pp Compiling ./src/gtk2x11/gdk2x.pas Compiling ./src/pangocairo/pangocairo.pas 180750 lines compiled, 0.7 sec 5 warning(s) issued when I called make from inside the gtk2 examples I got: :make make -C helloworld all make[1]: Entering directory `/home/patrick/modified_since_dec29_2012/programming/pascal_small_folder/packages2.6/gtk2/examples/helloworld' /usr/bin/ppcx64 -Fu/usr/lib/fpc/2.6.0/units/x86_64-linux/rtl -Fu/usr/lib/fpc/2.6.0/units/x86_64-linux/pasjpeg -Fu/usr/lib/fpc/2.6.0/units/x86_64-linux/hash -Fu/usr/lib/fpc/2.6.0/units/x86_64-linux/paszlib -Fu/usr/lib/fpc/2.6.0/units/x86_64-linux/fcl-base -Fu/usr/lib/fpc/2.6.0/units/x86_64-linux/fcl-image -Fu/usr/lib/fpc/2.6.0/units/x86_64-linux/x11 -Fu/usr/lib/fpc/2.6.0/units/x86_64-linux/cairo -Fu/usr/lib/fpc/2.6.0/units/x86_64-linux/gtk2 -FE. -FUunits/x86_64-linux -Cg -Fl/usr/lib/gcc/x86_64-linux-gnu/4.7 -Flinclude -Fl/etc/ld.so.conf.d/*.conf -dx86_64 helloworld.pas Free Pascal Compiler version 2.6.0-6 [2012/10/05] for x86_64 Copyright (c) 1993-2011 by Florian Klaempfl and others Target OS: Linux for x86-64 Compiling helloworld.pas helloworld.pas(28,11) Error: Incompatible types: got "Boolean32" expected "LongInt" helloworld.pas(96) Fatal: There were 1 errors compiling module, stopping Fatal: Compilation aborted make[1]: *** [helloworld] Error 1 make[1]: Leaving directory `/home/patrick/modified_since_dec29_2012/programming/pascal_small_folder/packages2.6/gtk2/examples/helloworld' make: *** [helloworld_all] Error 2 : I also had similar errors inside the scribblin example: /bin/mkdir -p units/x86_64-linux /usr/bin/ppcx64 -Fu/usr/lib/fpc/2.6.0/units/x86_64-linux/rtl -Fu/usr/lib/fpc/2.6.0/units/x86_64-linux/pasjpeg
Re: [fpc-pascal] Basically on the right track?
On 28.12.2012 22:53, Patrick wrote: Ah ! the liblua.a file was there at the start and then after make clean, make it was not. Thanks ! The liblua.a file is not necessarily what you think it is. On *nix platforms the .a files are used for smartlinking, not for linking against something. I tried the -st switch but a script was not generated. I have the results below but don't worry too much about it, I am going to start fresh again This is because you used it on the wrong file (see below). The script is only generated if the code compiles correctly. :fpc -st helloworld.pas This should have been for your helloworld2 to check what the linking errors are for. With the helloworld you have a compile error which is before the linking phase. Free Pascal Compiler version 2.6.0 [2012/08/24] for x86_64 Copyright (c) 1993-2011 by Florian Klaempfl and others Target OS: Linux for x86-64 Compiling helloworld.pas helloworld.pas(28,11) Error: Incompatible types: got "Boolean32" expected "LongInt" helloworld.pas(96) Fatal: There were 1 errors compiling module, stopping Fatal: Compilation aborted Error: /usr/bin/ppcx64 returned an error exitcode (normal if you did not specify a source file to be compiled) Regards, Sven ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] Basically on the right track?
Could you try to compile the example using "-st" and then run the generated ppas.sh script and report it's output here? I hope to get more error information from the linker this way... Regards, Sven ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal Hi again Sven I am going to switch over to Mint right now. If I don't respond it's because I screwed my email ! Ah ! the liblua.a file was there at the start and then after make clean, make it was not. Thanks ! I tried the -st switch but a script was not generated. I have the results below but don't worry too much about it, I am going to start fresh again Thanks-Patrick :fpc -st helloworld.pas Free Pascal Compiler version 2.6.0 [2012/08/24] for x86_64 Copyright (c) 1993-2011 by Florian Klaempfl and others Target OS: Linux for x86-64 Compiling helloworld.pas helloworld.pas(28,11) Error: Incompatible types: got "Boolean32" expected "LongInt" helloworld.pas(96) Fatal: There were 1 errors compiling module, stopping Fatal: Compilation aborted Error: /usr/bin/ppcx64 returned an error exitcode (normal if you did not specify a source file to be compiled) ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] Basically on the right track?
On 28.12.2012 19:04, Patrick wrote: However I am delighted to see a lua package in there. I have more experience with lua. Make is running without errors but I expected to see a liblua.a archive file after and did not see it, there were more warnings. (I have them at the end of the email) You won't see a liblua.a file, because Free Pascal does not use .a files for such purposes. Free Pascal generates .o and .ppu files which can then again be used when compiling a program. Also the lua package should already be compiled if you installed the deb. Take a look at /usr/lib/fpc/2.6.0/units/x86_64-linux/lua (or something similar). Nevertheless you should be able to just add the "lua" unit to the uses clause and it should work. You need the lua library installed of course. helloworld2.pas(99,1) Error: Error while linking helloworld2.pas(99,1) Fatal: There were 1 errors compiling module, stopping Fatal: Compilation aborted make: *** [helloworld2] Error Could you try to compile the example using "-st" and then run the generated ppas.sh script and report it's output here? I hope to get more error information from the linker this way... Regards, Sven ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] Basically on the right track?
Hope I am not wearing out the warm welcome I have received I installed the 64 bit .deb package from the website. I am still getting a lot of errors. I am starting to wonder if I have borked my install. I am on Debian stable right now. I can move to Mint Mate desktop... At the end of the email are the errors when compiling a simple gtk2 app However I am delighted to see a lua package in there. I have more experience with lua. Make is running without errors but I expected to see a liblua.a archive file after and did not see it, there were more warnings. (I have them at the end of the email) Any advice or do you think I should start with a fresh install? Thanks! helloworld2.pas(99,1) Error: Error while linking helloworld2.pas(99,1) Fatal: There were 1 errors compiling module, stopping Fatal: Compilation aborted make: *** [helloworld2] Error :make /usr/bin/ppcx64 -Fu../../rtl/units/x86_64-linux -Fisrc -FE. -FUunits/x86_64-linux -Cg -dx86_64 src/lua.pas Free Pascal Compiler version 2.6.0 [2012/08/24] for x86_64 Copyright (c) 1993-2011 by Florian Klaempfl and others Target OS: Linux for x86-64 Compiling src/lua.pas 575 lines compiled, 0.0 sec /usr/bin/ppcx64 -Fu../../rtl/units/x86_64-linux -Fisrc -FE. -FUunits/x86_64-linux -Cg -dx86_64 src/lualib.pas Free Pascal Compiler version 2.6.0 [2012/08/24] for x86_64 Copyright (c) 1993-2011 by Florian Klaempfl and others Target OS: Linux for x86-64 Compiling src/lualib.pas 104 lines compiled, 0.0 sec /usr/bin/ppcx64 -Fu../../rtl/units/x86_64-linux -Fisrc -FE. -FUunits/x86_64-linux -Cg -dx86_64 src/lauxlib.pas Free Pascal Compiler version 2.6.0 [2012/08/24] for x86_64 Copyright (c) 1993-2011 by Florian Klaempfl and others Target OS: Linux for x86-64 Compiling src/lauxlib.pas lauxlib.pas(292,6) Warning: Conversion between ordinals and pointers is not portable lauxlib.pas(292,27) Warning: Conversion between ordinals and pointers is not portable 380 lines compiled, 0.0 sec 2 warning(s) issued ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] Basically on the right track?
On 12/28/2012 08:39 AM, Juha Manninen wrote: On Fri, Dec 28, 2012 at 6:47 AM, Patrick wrote: I am also finding the site confusing. If I click on AMD64/x86_64 on the binary download page and then choose sourceforge, I end up being offered a package that says fpc-2.6.0.i386-linux.tar. I did find another link and installed the compiler. The AMD64/x86_64 link is for a crosscompiler of some sort. It does not work when you install it to your 64-bit computer. I have tested that many times because I always forget it. It is so extremely misleading! Could someone from the FPC team please fix it. Also the FPC sources can be found only behind many clicks. It could be more straightforward. ... and the Debian packages are divided to 44 (or some) pieces which should be downloaded one by one. Fortunately Mattias Gärtner has made easy Debian packages for FPC. They can be found in Lazarus downloads page. (!) This is bad. The first impression is always important and installation should be as simple as possible. It bothers me even though I am not a newbie any more. Lazarus pages are a bit messy, too, but not as bad. Juha ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal Hi Juha Thanks for your post :) Could you send me the link for the right 64 bit binary ? Thanks Marco and Sven for your posts too, let me make sure my set up is correct first though before I trouble you more with helloworld.pas -Patrick ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] Basically on the right track?
On Fri, Dec 28, 2012 at 6:47 AM, Patrick wrote: > I am also finding the site confusing. If I click on AMD64/x86_64 on the > binary download page and then choose sourceforge, I end up being offered a > package that says fpc-2.6.0.i386-linux.tar. > > I did find another link and installed the compiler. The AMD64/x86_64 link is for a crosscompiler of some sort. It does not work when you install it to your 64-bit computer. I have tested that many times because I always forget it. It is so extremely misleading! Could someone from the FPC team please fix it. Also the FPC sources can be found only behind many clicks. It could be more straightforward. ... and the Debian packages are divided to 44 (or some) pieces which should be downloaded one by one. Fortunately Mattias Gärtner has made easy Debian packages for FPC. They can be found in Lazarus downloads page. (!) This is bad. The first impression is always important and installation should be as simple as possible. It bothers me even though I am not a newbie any more. Lazarus pages are a bit messy, too, but not as bad. Juha ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] Basically on the right track?
Sven Barth wrote: On 28.12.2012 05:47, Patrick wrote: Free Pascal Compiler version 2.6.0 [2011/12/23] for x86_64 Copyright (c) 1993-2011 by Florian Klaempfl and others Target OS: Linux for x86-64 Compiling helloworld.pas helloworld.pas(28,11) Error: Incompatible types: got "Boolean32" expected "LongInt" helloworld.pas(97) Fatal: There were 1 errors compiling module, stopping Fatal: Compilation aborted Error: /usr/bin/ppcx64 returned an error exitcode (normal if you did not specify a source file to be compiled) How does your helloworld.pas look like? It's hard to guess what's wrong without seeing the code... Look back to 15:30 yesterday. -- Mark Morgan Lloyd markMLl .AT. telemetry.co .DOT. uk [Opinions above are the author's, not those of his employers or colleagues] ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] Basically on the right track?
In our previous episode, Sven Barth said: > > Fatal: Compilation aborted > > Error: /usr/bin/ppcx64 returned an error exitcode (normal if you did not > > specify a source file to be compiled) > > How does your helloworld.pas look like? It's hard to guess what's wrong > without seeing the code... Since it mentions boolean32, I bet it is a GTK2 hello world. The boolean32 was partially introduced because nothing else properly mapped to a GTK2 boolean. Only solution: update the outdated example, or use newer examples. ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] Basically on the right track?
On 28.12.2012 05:47, Patrick wrote: Free Pascal Compiler version 2.6.0 [2011/12/23] for x86_64 Copyright (c) 1993-2011 by Florian Klaempfl and others Target OS: Linux for x86-64 Compiling helloworld.pas helloworld.pas(28,11) Error: Incompatible types: got "Boolean32" expected "LongInt" helloworld.pas(97) Fatal: There were 1 errors compiling module, stopping Fatal: Compilation aborted Error: /usr/bin/ppcx64 returned an error exitcode (normal if you did not specify a source file to be compiled) How does your helloworld.pas look like? It's hard to guess what's wrong without seeing the code... Regards, Sven ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] Basically on the right track?
On 27.12.2012 17:11, Patrick wrote: > >> This is exactly what I thought. You are trying to use the GTK1 unit. >> The unit for GTK+ is called "gtk2". Take a look into "packages/gtk" >> and "packages/gtk2" of a Free Pascal source folder to see the >> differences in the units (just look at the *.pas/*.pp files and ignore >> the *.inc files for now). >> >> Also you could try whether you can compile the examples listed in >> "packages/gtk2/examples". >> >> Regards, >> Sven >> > Thanks Sven > > I am sure you are right about this. > > Do you happen to know if there is a way to specify the install > directory? I don't blame you guys for not using autotools but I often > use a flag --prefex=/pat with configure to install into a directory not > in my PATH. I then call my source built programs using their full path > names instead. I installed 2.4 by mistake from source(in /usr) and seem > to be having trouble removing it. The variable for make you are looking for is "INSTALL_PREFIX". It behaves like --prefix for configure. Regards, Sven PS: Sorry, Patrick, this should have gone to the list. -.- ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] Basically on the right track?
Sorry to bug everyone again. I am still mixed up. I was having trouble with both source compiled builds and Debian stable packages on a 64 bit machine so I switched computers and used an atom based netbook. I still ended up with errors related to number types. I switched back to the 64 bit computer and installed a binary from the site. I am still getting errors I have included one at the end of this email. I am also finding the site confusing. If I click on AMD64/x86_64 on the binary download page and then choose sourceforge, I end up being offered a package that says fpc-2.6.0.i386-linux.tar. I did find another link and installed the compiler. I appreciate all the time everyone has already put in-Patrick Free Pascal Compiler version 2.6.0 [2011/12/23] for x86_64 Copyright (c) 1993-2011 by Florian Klaempfl and others Target OS: Linux for x86-64 Compiling helloworld.pas helloworld.pas(28,11) Error: Incompatible types: got "Boolean32" expected "LongInt" helloworld.pas(97) Fatal: There were 1 errors compiling module, stopping Fatal: Compilation aborted Error: /usr/bin/ppcx64 returned an error exitcode (normal if you did not specify a source file to be compiled) ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] Basically on the right track?
This is exactly what I thought. You are trying to use the GTK1 unit. The unit for GTK+ is called "gtk2". Take a look into "packages/gtk" and "packages/gtk2" of a Free Pascal source folder to see the differences in the units (just look at the *.pas/*.pp files and ignore the *.inc files for now). Also you could try whether you can compile the examples listed in "packages/gtk2/examples". Regards, Sven Thanks Sven I am sure you are right about this. Do you happen to know if there is a way to specify the install directory? I don't blame you guys for not using autotools but I often use a flag --prefex=/pat with configure to install into a directory not in my PATH. I then call my source built programs using their full path names instead. I installed 2.4 by mistake from source(in /usr) and seem to be having trouble removing it. Thanks again for all your time-Patrick ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] Basically on the right track?
On 27.12.2012 16:11, Patrick wrote: :fpc hello_gtk.pas Free Pascal Compiler version 2.4.0-2 [2010/02/20] for x86_64 Try to update to FPC 2.6.0. 2.4.0 is quite old already (around 3 years). Copyright (c) 1993-2009 by Florian Klaempfl Target OS: Linux for x86-64 Compiling hello_gtk.pas Linking hello_gtk /usr/bin/ld: warning: link.res contains output sections; did you forget -T? /usr/bin/ld: cannot find -lgtk hello_gtk.pas(70,1) Error: Error while linking hello_gtk.pas(70,1) Fatal: There were 1 errors compiling module, stopping Fatal: Compilation aborted Error: /usr/bin/ppcx64 returned an error exitcode (normal if you did not specify a source file to be compiled) [snip] PROGRAM hello_world; USES gtk, gdk, glib; This is exactly what I thought. You are trying to use the GTK1 unit. The unit for GTK+ is called "gtk2". Take a look into "packages/gtk" and "packages/gtk2" of a Free Pascal source folder to see the differences in the units (just look at the *.pas/*.pp files and ignore the *.inc files for now). Also you could try whether you can compile the examples listed in "packages/gtk2/examples". Regards, Sven ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] Basically on the right track?
Wow ! I was really surprised to see all these emails when I woke up
today! Thanks everyone.
So my message was held in the moderator queue for a while and I have
been reading more.
Sorry for not reading through the man pages of fpc. I found the -Fu switch.
I have also read more about gpc and it seems abandoned, sorry for
mentioning it here.
At the end of the email I have the hello world gtk program I tried to
compile, the compiler error and an apt-get message from debian stable
showing gtk dev installed.
I have been able to compile gtk c examples and other languages.
"Is it possible to specify the libraries to use to fpc ? In Ada we have
.gpr files that can list where things are to be found. "
"What do you mean with this question ? "
This was an odd question to ask, sorry. With Ada we have .gpr files that
can be used in place of Makefiles(for the most part). With fpc switches
I will be fine now, sorry for the noise.
I am enjoying my holidays, I hope you guys are too !
-Patrick
:fpc hello_gtk.pas
Free Pascal Compiler version 2.4.0-2 [2010/02/20] for x86_64
Copyright (c) 1993-2009 by Florian Klaempfl
Target OS: Linux for x86-64
Compiling hello_gtk.pas
Linking hello_gtk
/usr/bin/ld: warning: link.res contains output sections; did you forget -T?
/usr/bin/ld: cannot find -lgtk
hello_gtk.pas(70,1) Error: Error while linking
hello_gtk.pas(70,1) Fatal: There were 1 errors compiling module, stopping
Fatal: Compilation aborted
Error: /usr/bin/ppcx64 returned an error exitcode (normal if you did not
specify a source file to be compiled)
root@foo:/# apt-get install libgtk2.0-dev
Reading package lists... Done
Building dependency tree
Reading state information... Done
libgtk2.0-dev is already the newest version.
0 upgraded, 0 newly installed, 0 to remove and 23 not upgraded.
N: Ignoring file 'squeeze-backports.list.save' in directory
'/etc/apt/sources.list.d/' as it has an invalid filename extension
root@foo:/#
PROGRAM hello_world;
USES gtk, gdk, glib;
{ -hello }
PROCEDURE hello( widget : pGtkWidget ; data : gpointer ); cdecl;
{ This is a callback function. The data arguments are ignored in this
example. More on callbacks later }
BEGIN
writeln('Hello World!');
END; { --hello-- }
{ delete_event }
FUNCTION delete_event( widget : pGtkWidget ; event : pGdkEvent ; data :
gpointer ) :
gint; cdecl;
{ If you return FALSE from the --delete_event-- signal handler, GTK will
emit the --destroy-- signal. Returning TRUE means you don't want
the window to be destroyed. This is useful for popping up 'are you sure
you want to quit?' type dialogs. }
BEGIN
writeln('delete event occurred');
{ Returning FALSE from the function, as we do here, causes the
--destroy-- signal to be emitted. }
delete_event := 0; { i.e. FALSE }
END; { -delete_event-- }
{ -destroy }
PROCEDURE destroy( widget : pGtkWidget ; data : gpointer ); cdecl;
{ Another callback - this one will kill the app }
BEGIN
gtk_main_quit();
END; {
---destroy--- }
{ ---Global Variables }
VAR
window, button : pGtkWidget; { GtkWidget is the storage type for widgets }
{ --Main Program-- }
BEGIN
{ This is called in all GTK applications. Arguments are parsed from the
command line and are returned to the application. }
gtk_init(@argc, @argv);
window := gtk_window_new(GTK_WINDOW_TOPLEVEL); { Create a new window }
{ When the window is given the --delete_event-- signal (this is given by
the window manager, usually by the --close-- option,
or on the titlebar), we ask it to call the delete_event() function as
defined above. The data passed to the callback function
is NIL and is ignored in the callback function. }
gtk_signal_connect(GTK_OBJECT(window), 'delete_event',
GTK_SIGNAL_FUNC(@delete_event), NIL);
{ Here we connect the --destroy-- event to a signal handler. This event
occurs when we call gtk_widget_destroy() on the window,
or if we return FALSE in the --delete_event-- callback. }
gtk_signal_connect(GTK_OBJECT(window), 'destroy',
GTK_SIGNAL_FUNC(@destroy), NIL);
{ Creates a new button with the label 'Hello World'. }
button := gtk_button_new_with_label('Hello World');
{ When the button receives the --clicked-- signal, it will call the
procedure hello() -defined above- passing it NIL as its argument. }
gtk_signal_connect(GTK_OBJECT(button), 'clicked',
GTK_SIGNAL_FUNC(@hello), NIL);
{ This packs the button into the window (a gtk container). }
gtk_container_add(GTK_CONTAINER(window), button);
{ The final step is to display this newly created widget. }
gtk_widget_show(button);
{ and the window }
gtk_widge
Re: [fpc-pascal] Basically on the right track?
On Thu, Dec 27, 2012 at 12:04:53PM +, Mark Morgan Lloyd wrote: > microc...@zoho.com wrote: > > >Ada support off Linux and Windows gets very expensive. But the market is far > >from dead. New standards have been approved even recently. > > Unfortunately, that's also true of COBOL and even of some earlier > programming representations :-) That's what old hardware and emulators are for. I know you realize that. But now we're getting too far afield for this list. Carry on, gents! ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] Basically on the right track?
microc...@zoho.com wrote: Ada support off Linux and Windows gets very expensive. But the market is far from dead. New standards have been approved even recently. Unfortunately, that's also true of COBOL and even of some earlier programming representations :-) -- Mark Morgan Lloyd markMLl .AT. telemetry.co .DOT. uk [Opinions above are the author's, not those of his employers or colleagues] ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] Basically on the right track?
On 27.12.2012 12:23, Mark Morgan Lloyd wrote: Realistically, Ada and Modula-x are dead. Unlike Pascal Ada recently (a few days ago) received a new standard... See here: http://www.ada2012.org/ Regards, Sven ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] Basically on the right track?
On Thu, Dec 27, 2012 at 11:23:42AM +, Mark Morgan Lloyd wrote: > Patrick wrote: > > >I fell in love with Ada about 14 months ago. Including the > >cardboard box, i now have 53lbs of Ada books(A few still to read), > >I am planning on diving into Pascal in this way too and I want to > >mix Ada and Pascal. > > Like a number of other people around here, I've used Modula-2 > extensively in the past. I've also done a bit of selling and > supporting for Ada, back in the days when there weren't any full > implementations that ran on PCs. > > Realistically, Ada and Modula-x are dead. You should try telling that to Irvine Compiler Corp., Aonix, Green Hills, Adacore, RR, IBM, and the other companies who are still developing and selling their Ada toolchains ;-) "Reports of the death of Ada have been greatly exaggerated!" > Just about everybody agrees that Ada and Modula-2 were praiseworthy > in avoiding Pascal's "dangling else" problem, and some would argue > that Pascal implementations could usefully have a switch to allow > that alternative syntax. But apart from that, I'd strongly caution > against spending too much time on them except for pure > hobby/research interest. That's indisputably true of Modula-2. But there are still jobs in Ada and while it's a niche if you can snag one they pay extremely well. Ada is well supported on Linux (in particular your favorite distro, Debian, has a very dedicated and hard-working maintainer) but is also available for any Linux distro, and Windows. It's a top-flight GPL toolchain supporting all the optional Annexes and there is also a gcc version derived from that. Ada support off Linux and Windows gets very expensive. But the market is far from dead. New standards have been approved even recently. -- _ _ ._ _ _ <_> ___ _ _ ___ ___ ___ _| | ___ | ' ' || |/ | '| '_>/ . \/ | '/ . \/ . |/ ._> |_|_|_||_|\_|_.|_| \___/\_|_.\___/\___|\___. ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] Basically on the right track?
Patrick wrote: I fell in love with Ada about 14 months ago. Including the cardboard box, i now have 53lbs of Ada books(A few still to read), I am planning on diving into Pascal in this way too and I want to mix Ada and Pascal. Like a number of other people around here, I've used Modula-2 extensively in the past. I've also done a bit of selling and supporting for Ada, back in the days when there weren't any full implementations that ran on PCs. Realistically, Ada and Modula-x are dead. Practically all of the things that made Ada and Modula-2 notable in the early 1980s- strong typing, modularity, exception handling etc.- have been recognised as "Good Things" and implemented in other languages. Also the various adjunct programs that were specified for a full Ada implementation have generally been implemented in IDEs for other languages (with a particular nod here to the very wide range of programs flitting about the Java ecosystem). Just about everybody agrees that Ada and Modula-2 were praiseworthy in avoiding Pascal's "dangling else" problem, and some would argue that Pascal implementations could usefully have a switch to allow that alternative syntax. But apart from that, I'd strongly caution against spending too much time on them except for pure hobby/research interest. I am having some trouble compiling gtk pascal examples, the linker can't find -lgtk etc. It looks like it is a naming issue and I can create links to get myself out of trouble however, As an adjunct to anything written by more experienced users such as Sven and Michael: you really need to tell us what version of FPC you're running, and what operating system etc. you're running on. -- Mark Morgan Lloyd markMLl .AT. telemetry.co .DOT. uk [Opinions above are the author's, not those of his employers or colleagues] ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] Basically on the right track?
On Mon, 24 Dec 2012, Patrick wrote: Hi Everyone This is my first post here. I have NOT read all the documentation, please forgive this but I was hoping to ask a couple of questions to make sure I am on the right track before diving into Pascal. I fell in love with Ada about 14 months ago. Including the cardboard box, i now have 53lbs of Ada books(A few still to read), I am planning on diving into Pascal in this way too and I want to mix Ada and Pascal. I found an example on the web last night and it looks easy. The only thing is the example used the gnu pascal compiler, Question 1: Can fpc create gcc compatible object code ? gcc can use the object files. This is not a problem. But things are not that simple. The FPC codebase requires certain symbols to be present, depending on the code you create. These symbols are usually only generated when you create a program or library. It means your ada project will have to a) provide these symbols b) initialize them correctly. or Question 2: alternatively can gpc be used to compile the gtk binding? The FPC list is the wrong list to ask that :) I am having some trouble compiling gtk pascal examples, the linker can't find -lgtk etc. It looks like it is a naming issue and I can create links to get myself out of trouble however, Sounds like you don't have the -dev packages installed. Simply installing those will fix the issue. I would not recommend fiddling with links yourself. Question 3: Is it possible to specify the libraries to use to fpc ? In Ada we have .gpr files that can list where things are to be found. What do you mean with this question ? Michael. ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] Basically on the right track?
On 24.12.2012 20:26, Patrick wrote: Question 1: Can fpc create gcc compatible object code ? As FPC can use GCC created object code the other way round should be possible, too. You only need to pay attention that FPC mangles the identifers. So a function "Bar(aArg: Integer): Integer" in unit "Foo" will in the object code have a name of something like "FOO_$$_BAR$INTEGER". So if you want to use Pascal functions from another language you should add a "[public: 'Bar']" after the function's declaration so that you can use the function by the name 'Bar'. Question 2: alternatively can gpc be used to compile the gtk binding? I don't use GPC and thus can't comment on it. AFAIK GPC also relies on a quite old GCC version (3.x). I am having some trouble compiling gtk pascal examples, the linker can't find -lgtk etc. It looks like it is a naming issue and I can create links to get myself out of trouble however, Which GTK examples? Are you trying GTK (aka GTK 1) or GTK+ (aka GTK 2) examples? You need to have the correct development library installed for them (especially important if you are on a deb-based system like Debian or Ubuntu). Question 3: Is it possible to specify the libraries to use to fpc ? In Ada we have .gpr files that can list where things are to be found. FPC relies on the search paths that the system knows. You can specify additional paths using "-Fl/path" and then those paths will be searched first. Regards, Sven ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
