On Jan 12, 2009, at 15:19, Marcus Calhoun-Lopez wrote:
I have a need of more 32/64-bit universal packages.
To facilitate this, I would like to propose a PortGroup with a
different
universal build mechanism than the default.
See http://trac.macports.org/ticket/17972.
It is intended to be an improvement of the merge function.
Any feedback would be greatly appreciated.
The only time I write in Tcl is on MacPorts related projects.
As I mentioned before, I wanted to start switching my ports to this
mechanism because I'm tired of bit-size issues and to a lesser extent
endian issues with the old all-at-once mechanism which one never
knows about until one tries to use some part of the software and it
doesn't work right.
I decided to start with pkgconfig because it has no dependencies and
has issues building 64-bit with the old way.
It doesn't build 64-bit with the new way either. Turns out its
included copy of glib 1.2.10 wants to run a compiled program during
the configure phase. I'm on a 64-bit Intel Mac, so once it gets to
the ppc64 architecture, it can't run that program, because Rosetta
can't run 64-bit PowerPC code. Presumably if I were on a G5 Mac it
would be able to get through the ppc and ppc64 architectures, but not
the i386 or x86_64 architectures. If I were on a G4 Mac it would
probably only manage the ppc architecture.
The merge-universal portgroup has this fancy new
universal_archs_supported keyword -- thanks for that! -- but I'm not
sure how to write a portfile to express:
if {build machine is powerpc} {
if {build machine is 64-bit} {
universal_archs_supported ppc ppc64
} else if {build machine is 32-bit} {
universal_archs_supoprted ppc
# at this point I may as well just write "universal_variant no"
}
} else if {build machine is intel} {
if {build machine is 64-bit} {
universal_archs_supported ppc i386 x86_64
} else if {build machine is 32-bit} {
universal_archs_supported ppc i386
}
}
Even if there were portfile syntax to test the bit-ness of the build
machine, I wouldn't want to have the above situation; it's awful.
There's a bug open with the authors of pkg-config but there has been
no response to it in a year and a half so I'm not hopeful. I suppose
I should ask the authors of glib instead.
https://bugs.freedesktop.org/show_bug.cgi?id=11464
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