Good input, thanks. I view the library and compiler dependencies as part of the general build environment problem and hence are in scope for the changes we want to make. My aim is that XCP is both "free as in beer" and "free as in speech". I want us to get to the point where you can rebuild any XCP component and submit patches back to the project as easily as you could rebuild Postgres and submit patches back to its project. Dave Scott is leading the team here to look at how we do that whilst continuing to produce the commercial products that fund this work - expect to see something from him on this soon.
Regards, James -- James Bulpin Sr Director, Technology, XenServer Citrix From: George Shuklin [mailto:[email protected]] Sent: 28 February 2013 12:23 To: James Bulpin Cc: [email protected] Subject: Re: [Xen-API] how to compile XCP source? The main problem is not 'environment out of the box' but the exact versions of libraries, compilers and so on. Because xapi-libs heavily depends on random set of libraries outside the xapi source tree, and there is no way to know witch version to use. Sometimes there is a situation that xapi depends on library foo and bar, and foo (in upstream) depends on different (conflicting) version of bar. And it definitively not compilable on centos5 (because of outdated ocaml for el5)... To be honest I was strong supporter for xapi. But time flows - XCP 0.5, XCP 1.1, XCP 1.5, XCP 1.6. Every time we found an working ISO with working binaries we can use like 'free version of XenServer'. But no any modification of code was possible (no way to build original ISO, or, at least, original xapi's RPM). That was definitively not a 'free as freedom', just 'open source'. Some minor stuff in /etc/xensource/scripts and /opt/xensource/sm with patches, but no any significant changes was possible. We actually have a huge (over 3k lines) code which simply doing stuff 'around' xapi instead adding that functions to original code. Now we got XCP 1.6. Again there is a significant set of changes we want to add (and share with others!) - but we can't, and we continue to add 'hacks around'. Really, I not very happy about this and start to thinking about switching to something more 'free as freedom' visualization stack. Lack of 'scrach your own itch' is very and very disappointing. I really don't want to switch away from xapi and want to see some cooperation... 28.02.2013 15:50, James Bulpin пишет: > There is no way to reproduce exact build environment without citrix's guys > and they are all in XenServer, not in XCP. Details of build environment are > closed and without that information disclose you can assume XCP is not > opensource, but just 'free'. (sad). We know this isn't ideal but we're working on fixing it at the moment. Reproducing the Citrix build environment isn't practical so we're making XCP/XenServer buildable in a more standard environment. More on this soon. Cheers, James From: [email protected]<mailto:[email protected]> [mailto:[email protected]] On Behalf Of George Shuklin Sent: 28 February 2013 09:01 To: [email protected]<mailto:[email protected]> Subject: Re: [Xen-API] how to compile XCP source? We've tried few times, but gave up. There is no way to reproduce exact build environment without citrix's guys and they are all in XenServer, not in XCP. Details of build environment are closed and without that information disclose you can assume XCP is not opensource, but just 'free'. (sad). To be precise: you can build xapi sources from git, but in very strange environment with unknown version of libraries. It will be 'some binary', not the original XCP's xapi. 27.02.2013 19:46, Felix Feng пишет: Hi experts, I'm trying to build XCP source http://downloads.xen.org/XCP/61809c/sources/source-1.iso . I was wondering whether or not a CentOS 5.x is a MUST build environment? For Debian/Ubuntu, is the xapi-autobuilder(http://wiki.xen.org/wiki/Compile_the_XCP_toolstack_from_source) the only way to build XCP from source? And are there any instructions about compiling XCP/XAPI? Thanks. ------ Regards, Felix _______________________________________________ Xen-api mailing list [email protected]<mailto:[email protected]> http://lists.xen.org/cgi-bin/mailman/listinfo/xen-api
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