Index: giflib-4.1.6-r2.ebuild
===================================================================
RCS file: /var/cvsroot/gentoo-x86/media-libs/giflib/giflib-4.1.6-r2.ebuild,v
--- giflib-4.1.6-r2.ebuild		1.3
+++ giflib-4.1.6-r2.ebuild	
@@ -41,6 +41,11 @@ 
                myconf="${myconf} --disable-rle"
        fi
+       if use X; then
+               myconf="${myconf} --x-includes=${EPREFIX}/usr/include \
+                       --x-libraries=${EPREFIX}/usr/$(get_libdir)"
+       fi
+
        econf \
                --disable-gl \
                $(use_enable static-libs static) \