Stefan Fiedler:

package/base/gawk/gawk.conf

@@ -1,3 +1,4 @@
+#!/bin/bash
 # --- ROCK-COPYRIGHT-NOTE-BEGIN ---
 # 
 # This copyright note is auto-generated by ./scripts/Create-CopyPatch.
@@ -27,3 +28,7 @@ if [ $stagelevel -gt 0 ]; then
 fi
 hook_add postmake 3 "INSTALL_WRAPPER_FILTER="" ; ln -sfv gawk $root/bin/awk"
 
+hook_add preconf 3 "cat >> config.h << EOF
+#define HAVE_LANGINFO_CODESET 1
+#define HAVE_LC_MESSAGES 1
+EOF"