nixpkgs/pkgs/development/libraries/glibc-2.12/nix-locale-archive.patch

diff --git a/locale/loadarchive.c b/locale/loadarchive.c
index d545f17..0d8638a 100644
--- a/locale/loadarchive.c
+++ b/locale/loadarchive.c
@@ -124,6 +124,25 @@ calculate_head_size (const struct locarhead *h)
 }
 
 
+static int
+open_locale_archive ()
+{
+  int fd = -1;
+  char *path = getenv ("LOCALE_ARCHIVE_2_11");
+  char *path2 = getenv ("LOCALE_ARCHIVE");
+  const char *usualpath = "/usr/lib/locale/locale-archive";
+  if (path)
+    fd = open_not_cancel_2 (path, O_RDONLY|O_LARGEFILE);
+  if (path2 && fd < 0)
+    fd = open_not_cancel_2 (path2, O_RDONLY|O_LARGEFILE);
+  if (fd < 0)
+    fd = open_not_cancel_2 (archfname, O_RDONLY|O_LARGEFILE);
+  if (fd < 0)
+    fd = open_not_cancel_2 (usualpath, 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
@@ -203,7 +222,7 @@ _nl_load_locale_from_archive (int category, const char **namep)
       archmapped = &headmap;
 
       /* The archive has never been opened.  */
-      fd = open_not_cancel_2 (archfname, O_RDONLY|O_LARGEFILE);
+      fd = open_locale_archive ();
       if (fd < 0)
 	/* Cannot open the archive, for whatever reason.  */
 	return NULL;
@@ -394,7 +413,7 @@ _nl_load_locale_from_archive (int category, const char **namep)
 	  if (fd == -1)
 	    {
 	      struct stat64 st;
-	      fd = open_not_cancel_2 (archfname, O_RDONLY|O_LARGEFILE);
+	      fd = open_locale_archive ();
 	      if (fd == -1)
 		/* Cannot open the archive, for whatever reason.  */
 		return NULL;
diff --git a/locale/programs/locale.c b/locale/programs/locale.c
index 77262b7..fddc00d 100644
--- a/locale/programs/locale.c
+++ b/locale/programs/locale.c
@@ -628,6 +628,20 @@ nameentcmp (const void *a, const void *b)
 		  ((const struct nameent *) b)->name);
 }
 
+static int
+open_nix_locale_archive (const char * fname, int access)
+{
+  int fd = -1;
+  char *path = getenv ("LOCALE_ARCHIVE_2_11");
+  char *path2 = getenv ("LOCALE_ARCHIVE");
+  if (path)
+    fd = open64 (path, access);
+  if (path2 && fd < 0)
+    fd = open64 (path2, access);
+  if (fd < 0)
+    fd = open64 (fname, access);
+  return fd;
+}
 
 static int
 write_archive_locales (void **all_datap, char *linebuf)
@@ -641,7 +658,7 @@ write_archive_locales (void **all_datap, char *linebuf)
   int fd, ret = 0;
   uint32_t cnt;
 
-  fd = open64 (ARCHIVE_NAME, O_RDONLY);
+  fd = open_nix_locale_archive (ARCHIVE_NAME, O_RDONLY);
   if (fd < 0)
     return 0;
 
diff --git a/locale/programs/locarchive.c b/locale/programs/locarchive.c
index 85ba77d..3ad2af8 100644
--- a/locale/programs/locarchive.c
+++ b/locale/programs/locarchive.c
@@ -512,6 +512,20 @@ enlarge_archive (struct locarhandle *ah, const struct locarhead *head)
   *ah = new_ah;
 }
 
+static int
+open_nix_locale_archive (const char * fname, int access)
+{
+  int fd = -1;
+  char *path = getenv ("LOCALE_ARCHIVE_2_11");
+  char *path2 = getenv ("LOCALE_ARCHIVE");
+  if (path)
+    fd = open64 (path, access);
+  if (path2 && fd < 0)
+    fd = open64 (path2, access);
+  if (fd < 0)
+    fd = open64 (fname, access);
+  return fd;
+}
 
 void
 open_archive (struct locarhandle *ah, bool readonly)
@@ -531,7 +548,7 @@ open_archive (struct locarhandle *ah, bool readonly)
   while (1)
     {
       /* Open the archive.  We must have exclusive write access.  */
-      fd = open64 (archivefname, readonly ? O_RDONLY : O_RDWR);
+      fd = open_nix_locale_archive (archivefname, readonly ? O_RDONLY : O_RDWR);
       if (fd == -1)
 	{
 	  /* Maybe the file does not yet exist.  */