Reenable gtk-glade compilation with offscreen mesa enabled for gtk frontend.

desmume/configure.ac

@@ -137,9 +137,6 @@ if test "x$HAVE_SDL" = "xyes"; then
     UI_DIR="gtk $UI_DIR"
   fi
 
-  dnl - the glade port has a weird relation to gtkglext and doesn't
-  dnl - works yet with osmesa, feel free to fix it :)
-  if test ! "x$useosmesa" = "xyes" ; then
   if test "x$HAVE_LIBGLADE" = "xyes"; then
     AC_PROVIDE_IFELSE([IT_PROG_INTLTOOL],[
       # libglade requires SDL too
@@ -160,7 +157,6 @@ if test "x$HAVE_SDL" = "xyes"; then
     ])
   fi
 fi
-fi
 
 dnl Set compiler library flags per target.
 case $target in