--- gd.SlackBuild	2007-06-27 02:09:04.000000000 -0400
+++ gd.SlackBuild.s390x	2009-07-05 14:35:43.000000000 -0400
@@ -38,7 +38,7 @@
   SLKCFLAGS="-O2 -march=i386 -mcpu=i686"
 elif [ "$ARCH" = "i486" ]; then
   SLKCFLAGS="-O2 -march=i486 -mtune=i686"
-elif [ "$ARCH" = "s390" ]; then
+elif [ "$ARCH" = "s390x" ]; then
   SLKCFLAGS="-O2"
 elif [ "$ARCH" = "x86_64" ]; then
   SLKCFLAGS="-O2"
@@ -71,6 +71,7 @@
 CFLAGS="$SLKCFLAGS" \
 ./configure \
   --prefix=/usr \
+  --libdir='${exec_prefix}/lib64' \
   --disable-static \
   --build=$ARCH-slackware-linux