GLUED: renamed packages to rules, cfg_dir_packages to cfg_dir_rules.

rules/libffi/host.bash

@@ -0,0 +1,18 @@
+source "$pkg_common"
+
+configure()
+{
+    "../libffi-$version/configure" \
+        "--prefix=$cfg_dir_toolchain"
+}
+
+build()
+{
+    $cmd_make
+}
+
+host_install()
+{
+    $cmd_make install &&
+    sed 's/Libs: /Libs: -L${libdir} /g' "$cfg_dir_toolchain/lib/pkgconfig/libffi.pc" -i
+}