glib2 fails to build on x86_64 with 'Symbol not found' error

[dwalthour@…]

steps to reproduce:

1. modify variants.conf to add +universal

2. modify potconfigure.tcl to add -arch x86_64 to configure.universal_cflags, configure.universal_cxxflags, and configure.universal_ldflags

3. port install glib2 fails with:

$ sudo port install glib2
--->  Building glib2 with target all
Error: Target org.macports.build returned: shell command " cd "/opt/local-64/var/macports/build/_opt_local-64_var_macports_sources_rsync.macports.org_release_ports_devel_glib2/work/glib-2.16.3" && make all " returned error 2
Command output: make[4]: Nothing to be done for `all-am'.
Making all in tests
make[4]: Nothing to be done for `all'.
Making all in gmodule
make  all-am
make[3]: Nothing to be done for `all-am'.
Making all in gthread
make[2]: Nothing to be done for `all'.
Making all in gobject
make glib-genmarshal
make[3]: `glib-genmarshal' is up to date.
echo "#ifndef __G_MARSHAL_H__" > xgen-gmh \
	&& echo "#define __G_MARSHAL_H__" >> xgen-gmh \
	&& ./glib-genmarshal --nostdinc --prefix=g_cclosure_marshal ./gmarshal.list --header >> xgen-gmh \
	&& echo "#endif /* __G_MARSHAL_H__ */" >> xgen-gmh \
	&& (cmp -s xgen-gmh gmarshal.h 2>/dev/null || cp xgen-gmh gmarshal.h) \
	&& rm -f xgen-gmh xgen-gmh~ \
	&& echo timestamp > stamp-gmarshal.h
dyld: lazy symbol binding failed: Symbol not found: __g_getenv_nomalloc
  Referenced from: /opt/local-64/var/macports/build/_opt_local-64_var_macports_sources_rsync.macports.org_release_ports_devel_glib2/work/glib-2.16.3/glib/.libs/libglib-2.0.0.dylib
  Expected in: flat namespace

dyld: Symbol not found: __g_getenv_nomalloc
  Referenced from: /opt/local-64/var/macports/build/_opt_local-64_var_macports_sources_rsync.macports.org_release_ports_devel_glib2/work/glib-2.16.3/glib/.libs/libglib-2.0.0.dylib
  Expected in: flat namespace

/bin/sh: line 1: 73719 Trace/BPT trap          ./glib-genmarshal --nostdinc --prefix=g_cclosure_marshal ./gmarshal.list --header >> xgen-gmh
make[2]: *** [stamp-gmarshal.h] Error 133
make[1]: *** [all-recursive] Error 1
make: *** [all] Error 2

Error: Status 1 encountered during processing.

[jmroot (Joshua Root)]

Assigning to maintainer. I've seen glib2 fail building for x86_64 with MP trunk as well.

[ryandesign (Ryan Carsten Schmidt)]

If you can figure out what needs to be changed to make it work, please let me know. But I'm not really supporting 64-bit builds of anything in MacPorts right now.

[dwalthour@…]

Replying to ryandesign@macports.org:

If you can figure out what needs to be changed to make it work, please let me know. But I'm not really supporting 64-bit builds of anything in MacPorts right now.

I understand. I have already downloaded glib2 directly from the GTK+ website and reproduced the problem, so it isn't anything to do with macports. I will see what I can come up with but if you have anything to offer I would appreciate the help.