Error compiling gio-fam-backend from ports

[Frank Bonnet]

Hello

I'm trying to compile gio-fam-backend ( necessary to compile Yhunderbird )
from ports at 6.3 and I get the followin error message :

  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-gfamdirectorymonitor.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



Thanks for any info.

--
Regards
FB