build: Add ACLOCAL_FLAGS to ACLOCAL_AMFLAGS
build: Add ACLOCAL_FLAGS to ACLOCAL_AMFLAGS

This fixes the build with recent changes to gnome-common.

See: https://bugzilla.gnome.org/show_bug.cgi?id=706826

Pecisk/libgdata,Pecisk/libgdata-gtasks,Distrotech/libgdata,Distrotech/libgdata,pwithnall/libgdata,Pecisk/libgdata-gtasks,Pecisk/libgdata-gtasks,Pecisk/libgdata,GNOME/libgdata,Distrotech/libgdata,pwithnall/libgdata,Pecisk/libgdata