gnustep-back: introduction to -other

This adds the last core module of gnustep to the section.

gnustep/gnustep-back/DEPENDS

@@ -0,0 +1,8 @@
+depends gnustep-base
+
+optional_depends freetype2 "--with-freetype" "--without-freetype" "Freetype Font Support"
+optional_depends mesa-lib "--enable-glx" "--disable-glx" "Enable GLX support"
+
+optional_depends cairo "--enable-graphics=cairo"     " " "Cairo Backend (choose one)"
+optional_depends libart_lgpl "--enable-graphics=art" " " "ART Backend (choose one)"
+optional_depends libX11 "--enable-graphics=xlib"     " " "X11 Backend (choose one)"

gnustep/gnustep-back/DETAILS

@@ -0,0 +1,13 @@
+          MODULE=gnustep-back
+         VERSION=0.23.0
+          SOURCE=$MODULE-$VERSION.tar.gz
+      SOURCE_URL=ftp://ftp.gnustep.org/pub/gnustep/core/
+      SOURCE_VFY=sha1:cb4584f15fd6e5ba4571157dff08990cc90c195a
+        WEB_SITE=http://gnustep.org/
+         ENTERED=20130909
+         UPDATED=20130909
+           SHORT="GNUstep Backend Package"
+
+cat << EOF
+The generic back-end package of the GNUstep project.
+EOF