diff --git a/pkgs/development/libraries/glibc-2.9/locale-override.patch b/pkgs/development/libraries/glibc-2.9/locale-override.patch
new file mode 100644
index 00000000000..108d0e35dac
--- /dev/null
+++ b/pkgs/development/libraries/glibc-2.9/locale-override.patch
@@ -0,0 +1,72 @@
+diff -rc glibc-2.9-20081208-orig/locale/loadarchive.c glibc-2.9-20081208/locale/loadarchive.c
+*** glibc-2.9-20081208-orig/locale/loadarchive.c	2005-09-09 18:56:52.000000000 +0200
+--- glibc-2.9-20081208/locale/loadarchive.c	2009-04-19 13:54:26.000000000 +0200
+***************
+*** 124,129 ****
+--- 124,142 ----
+  }
+  
+  
++ static int
++ open_locale_archive ()
++ {
++   int fd = -1;
++   char *path = getenv ("LOCALE_ARCHIVE");
++   if (path)
++     fd = open_not_cancel_2 (path, O_RDONLY|O_LARGEFILE);
++   if (fd < 0)
++     fd = open_not_cancel_2 (archfname, O_RDONLY|O_LARGEFILE);
++   return fd;
++ }
++ 
++ 
+  /* Find the locale *NAMEP in the locale archive, and return the
+     internalized data structure for its CATEGORY data.  If this locale has
+     already been loaded from the archive, just returns the existing data
+***************
+*** 203,209 ****
+        archmapped = &headmap;
+  
+        /* The archive has never been opened.  */
+!       fd = open_not_cancel_2 (archfname, O_RDONLY|O_LARGEFILE);
+        if (fd < 0)
+  	/* Cannot open the archive, for whatever reason.  */
+  	return NULL;
+--- 216,222 ----
+        archmapped = &headmap;
+  
+        /* The archive has never been opened.  */
+!       fd = open_locale_archive ();
+        if (fd < 0)
+  	/* Cannot open the archive, for whatever reason.  */
+  	return NULL;
+***************
+*** 394,400 ****
+  	  if (fd == -1)
+  	    {
+  	      struct stat64 st;
+! 	      fd = open_not_cancel_2 (archfname, O_RDONLY|O_LARGEFILE);
+  	      if (fd == -1)
+  		/* Cannot open the archive, for whatever reason.  */
+  		return NULL;
+--- 407,413 ----
+  	  if (fd == -1)
+  	    {
+  	      struct stat64 st;
+! 	      fd = open_locale_archive ();
+  	      if (fd == -1)
+  		/* Cannot open the archive, for whatever reason.  */
+  		return NULL;
+diff -rc glibc-2.9-20081208-orig/sysdeps/generic/unsecvars.h glibc-2.9-20081208/sysdeps/generic/unsecvars.h
+*** glibc-2.9-20081208-orig/sysdeps/generic/unsecvars.h	2006-10-11 18:24:05.000000000 +0200
+--- glibc-2.9-20081208/sysdeps/generic/unsecvars.h	2009-04-19 13:55:34.000000000 +0200
+***************
+*** 16,21 ****
+--- 16,22 ----
+    "LD_SHOW_AUXV\0"							      \
+    "LD_USE_LOAD_BIAS\0"							      \
+    "LOCALDOMAIN\0"							      \
++   "LOCALE_ARCHIVE\0"							      \
+    "LOCPATH\0"								      \
+    "MALLOC_TRACE\0"							      \
+    "NIS_PATH\0"								      \