AC_SUBST(MMX_CFLAGS)
AC_SUBST(SSE_CFLAGS)
-PKG_CHECK_MODULES(GTK, [gtk+-2.0], [HAVE_GTK=yes], [HAVE_GTK=no])
+AC_ARG_ENABLE(gtk,
+ [AC_HELP_STRING([--disable-gtk],
+ [disable tests using GTK+])],
+ [disable_gtk=yes], [disable_gtk=no])
+
+if test $disable_gtk = no ; then
+ PKG_CHECK_MODULES(GTK, [gtk+-2.0], [HAVE_GTK=yes], [HAVE_GTK=no])
+else
+ HAVE_GTK=no
+fi
+
AM_CONDITIONAL(HAVE_GTK, [test "x$HAVE_GTK" = xyes])
AC_SUBST(GTK_CFLAGS)