gnome2 clean build failure

[J. W. Ballantine]

After doing a fresh install of 7.0-rc1, and a csup of the ports system
and then the MC bits this AM, the build of gnome2 is failing with:

mv -f .deps/libgiofam_la-gfamfilemonitor.Tpo .deps/libgiofam_la-gfamfilemonitor
.Plo
/bin/sh ../../libtool --tag=CC   --mode=link cc -DG_LOG_DOMAIN=\"GLib-GIO\" 
-I../.. -I../../glib -I.
./../gmodule -I../../gio -DG_ENABLE_DEBUG -DGIO_MODULE_DIR=\"/usr/local/lib/gio
/modules\" -DGIO_COMP
ILATION -DG_DISABLE_DEPRECATED -O2 -fno-strict-aliasing -pipe  -Wall 
-export_dynamic -avoid-version
-module -no-undefined -export-symbols-regex '^g_io_module_(load|unload)' 
-L/usr/local/lib -lintl -o
libgiofam.la -rpath /usr/local/lib/gio/modules libgiofam_la-fam-helper.lo 
libgiofam_la-fam-module.lo
 libgiofam_la-gfamdirectorymonitor.lo libgiofam_la-gfamfilemonitor.lo  
-lgio-2.0 -lgobject-2.0 -lgli
b-2.0  -lfam  
generating symbol list for `libgiofam.la'
/usr/bin/nm -B  .libs/libgiofam_la-fam-helper.o .libs/libgiofam_la-fam-module.o
 .libs/libgiofam_la-g
famdirectorymonitor.o .libs/libgiofam_la-gfamfilemonitor.o  | sed -n -e 
's/^.*[         ]\([ABCDGIRS
TW][ABCDGIRSTW]*\)[     ][      ]*\([_A-Za-z][_A-Za-z0-9]*\)$/\1 \2 \2/p' | 
/usr/bin/sed 's/.* //' |
 sort | uniq > .libs/libgiofam.exp
/usr/bin/grep -E -e "^g_io_module_(load|unload)" ".libs/libgiofam.exp" > 
".libs/libgiofam.expT"
mv -f ".libs/libgiofam.expT" ".libs/libgiofam.exp"
cc -shared  .libs/libgiofam_la-fam-helper.o .libs/libgiofam_la-fam-module.o 
.libs/libgiofam_la-gfamd
irectorymonitor.o .libs/libgiofam_la-gfamfilemonitor.o  -Wl,--rpath 
-Wl,/usr/local/lib -Wl,--rpath -
Wl,/usr/local/lib -L/usr/local/lib /usr/local/lib/libintl.so -lgio-2.0 
/usr/local/lib/libgobject-2.0
.so /usr/local/lib/libglib-2.0.so /usr/local/lib/libfam.so  -Wl,-soname 
-Wl,libgiofam.so -Wl,-retain
-symbols-file -Wl,.libs/libgiofam.exp -o .libs/libgiofam.so
/usr/bin/ld: cannot find -lgio-2.0
gmake: *** [libgiofam.la] Error 1
*** Error code 2

Stop in /usr/ports/devel/gio-fam-backend.
*** Error code 1

Stop in /usr/ports/sysutils/policykit.
*** Error code 1

Stop in /usr/ports/sysutils/system-tools-backends.
*** Error code 1

Stop in /usr/ports/x11/gnome-applets.
*** Error code 1

Stop in /usr/ports/x11/gnome2.
*** Error code 1

Stop in /usr/ports/x11/gnome2.