garnome 2.20.3 fails to install on macosx 10.5.1

["Brad Allison" <brad allison gmail com>]

Macintosh:garnome-2.20.3 jackal$ pwd
/Users/jackal/source/GNOME2-garnome/garnome-2.20.3

Macintosh:garnome-2.20.3 jackal$ cd desktop/

Macintosh:desktop jackal$    make paranoid-install
[===== NOW BUILDING:    alacarte-0.11.3    =====]
    [fetch] complete for alacarte.
    [checksum] complete for alacarte.
    [extract] complete for alacarte.
    [patch] complete for alacarte.
    [fixup] complete for alacarte.
 ==> Building bindings/pygtk as a dependency
[===== NOW BUILDING:    pygtk-2.12.1    =====]
    [fetch] complete for pygtk.
    [checksum] complete for pygtk.
    [extract] complete for pygtk.
    [patch] complete for pygtk.
    [fixup] complete for pygtk.
 ==> Building platform/gtk+ as a dependency
[===== NOW BUILDING:    gtk+-2.12.5    =====]
    [fetch] complete for gtk+.
    [checksum] complete for gtk+.
    [extract] complete for gtk+.
    [patch] complete for gtk+.
[===== NOW BUILDING:    libtool-1.5.24    =====]
    [fetch] complete for libtool.
    [checksum] complete for libtool.
    [extract] complete for libtool.
    [patch] complete for libtool.
    [fixup] complete for libtool.
 ==> Running configure in work/main.d/libtool-1.5.24
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for a thread-safe mkdir -p... ./install-sh -c -d
checking for gawk... gawk
checking whether make sets $(MAKE)... yes
checking for gcc... cc
checking for C compiler default output file name... 
configure: error: C compiler cannot create executables
See `config.log' for more details.
make[4]: *** [configure-work/main.d/libtool-1.5.24/configure] Error 77
make[3]: *** [fixuplibtool] Error 2
make[2]: *** [../../platform/gtk+/cookies/main.d/install] Error 2
make[1]: *** [../../bindings/pygtk/cookies/main.d/install] Error 2
make: *** [paranoid-install] Error 2

Macintosh:desktop jackal$ pwd
/Users/jackal/source/GNOME2-garnome/garnome-2.20.3/desktop

Macintosh:desktop jackal$ which gcc
/usr/bin/gcc

Macintosh:desktop jackal$ gcc --version
i686-apple-darwin9-gcc-4.0.1 (GCC) 4.0.1 (Apple Inc. build 5465)
Copyright (C) 2005 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

Macintosh:desktop jackal$ uname -a
Darwin Macintosh.local 9.1.0 Darwin Kernel Version 9.1.0: Wed Oct 31 17:46:22 PDT 2007; root:xnu-1228.0.2~1/RELEASE_I386 i386