Please describe the problem:
the latest git revision of gst-plugins-gl won't build on ubuntu 8.04 (hardy)

Steps to reproduce:
in gst-plugins-gl:
./autogen.sh
./configure
make
sudo make install

Actual results:
The compilation fails with:

 gcc -DHAVE_CONFIG_H -I. -I../../.. -pthread -I/usr/local/include/gstreamer-0.10 -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include -I/usr/include/libxml2 -I../../../gst-libs -I../../../gst-libs -pthread -I/usr/local/include/gstreamer-0.10 -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include -I/usr/include/libxml2 -Wall -Wdeclaration-after-statement -Wpointer-arith -Werror -fno-strict-aliasing -g -DGST_DISABLE_DEPRECATED -I/usr/include/gtk-2.0 -I/usr/lib/gtk-2.0/include -I/usr/include/atk-1.0 -I/usr/include/cairo -I/usr/include/pango-1.0 -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include -I/usr/include/freetype2 -I/usr/include/libpng12 -I/usr/include/pixman-1 -x objective-c -g -O2 -MT libgstgtkhelper_la-gstgtk.lo -MD -MP -MF .deps/libgstgtkhelper_la-gstgtk.Tpo -c gstgtk.c  -fPIC -DPIC -o .libs/libgstgtkhelper_la-gstgtk.o
gcc: error trying to exec 'cc1obj': execvp: No such file or directory
make[5]: *** [libgstgtkhelper_la-gstgtk.lo] Error 1


Expected results:
It would compile

Does this happen every time?
Yes

Other information:
This applies to git revision:

commit e2a2334864f0275b2f399bf598e14fa3c640a67a
Author: David Schleef <ds@hutch-2.local>
Date:   Sun Apr 12 22:24:06 2009 -0700

    Build for Cocoa on darwin, with various fixes