On Tue, Oct 07, 2008 at 11:12:09AM -0400, Jeremy Katz wrote: > On Tue, 2008-10-07 at 14:35 +0100, Richard W.M. Jones wrote: > > I've got a nasty program I'm trying to package for Fedora. To cut a > > very long story short, this C/C++ mixed program started out on Windows > > and makes lots of 32 bit assumptions. So it's compiled with 'gcc -m32'. > > > > Expressing the build requirements so it can build on a 64 bit platform > > is proving troublesome. (It builds fine on i386). > > In general, for these situations the right answer is to ExcludeArch and > file the appropriate tracking bugs rather than trying to do 32-bit > builds on a 64-bit arch. The latter is only done in a few special cases > (bootloaders mainly) which don't have any external deps The issues is actually weirder / more complicated than I thought. (But hey, Windows software, what do you expect :-) It turns out that it's not just built for 32 bit because of the general hideousness of the code, but because it builds Windows 32 bit plugins. Somehow -- and I've no idea how it does this -- the Windows plugins get loaded into the native Fedora binary at runtime. Even though the main binary is Fedora native, it still has to be built as 32 bit to achieve this minor miracle. The package is NSIS, in case you were wondering ... http://hg.et.redhat.com/misc/fedora-mingw--devel/?cmd=manifest;manifest=d9257c5046c7e63b8c00d01528031f14cf6fc319;path=/nsis/ http://www.annexia.org/tmp/mingw/fedora-9/x86_64/RPMS/mingw32-nsis-2.39-3.fc9.x86_64.rpm $ file /usr/bin/makensis /usr/bin/makensis: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.9, stripped $ file /usr/share/nsis/Stubs/zlib /usr/share/nsis/Stubs/zlib: PE32 executable for MS Windows (GUI) Intel 80386 32-bit $ strace makensis --help 2>&1 | egrep '(Plugins|Stubs)' open("/usr/share/nsis/Stubs/zlib", O_RDONLY) = 3 open("/usr/share/nsis/Stubs/uninst", O_RDONLY) = 3 I guess if we ExcludeArch we'll still be OK because x86-64 users will be able to install and use the i386 version? Rich. -- Richard Jones, Emerging Technologies, Red Hat http://et.redhat.com/~rjones virt-top is 'top' for virtual machines. Tiny program with many powerful monitoring features, net stats, disk stats, logging, etc. http://et.redhat.com/~rjones/virt-top -- fedora-devel-list mailing list fedora-devel-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/fedora-devel-list
