Implement locale-sensitive string collation for MS-Windows. (Bug#18051)

 src/w32proc.c (get_lcid_callback, get_lcid, w32_compare_strings):
 New functions.
 src/w32.h (w32_compare_strings): Add prototype.
 src/w32.c <g_b_init_compare_string_w>: New global flag.
 (globals_of_w32): Initialize it.
 src/sysdep.c (str_collate) [WINDOWSNT]: Implementation for MS-Windows.
 src/fns.c (Fstring_collate_lessp, Fstring_collate_equalp)
 [WINDOWSNT]: Call str_collate on MS-Windows.

 etc/NEWS: Mention that string-collate-* functions are supported on
 MS-Windows as well.

2 files changed, 8 insertions, 3 deletions

diff --git a/etc/ChangeLog b/etc/ChangeLog
index 40eb5f11252..72c8334d3df 100644
--- a/etc/ChangeLog
+++ b/etc/ChangeLog
@@ -1,3 +1,8 @@
+2014-08-25  Eli Zaretskii  <eliz@gnu.org>
+
+        * NEWS: Mention that string-collate-* functions are supported on
+        MS-Windows as well.
+
 2014-08-08  Jan Nieuwenhuizen  <janneke@gnu.org>
 
         * compilation.txt (file): Add Guile backtrace example.
diff --git a/etc/NEWS b/etc/NEWS
index 58a749a79b4..afdaf1a2a3d 100644
--- a/etc/NEWS
+++ b/etc/NEWS
@@ -68,9 +68,9 @@ variable `read-hide-char'.
 
 ** The new functions `string-collate-lessp' and `string-collate-equalp'
 preserve the collation order as defined by the system's locale(1)
-environment.  For the time being this is implemented for POSIX systems
-only, for other systems they fall back to their counterparts
-`string-lessp' and `string-equal'.
+environment.  For the time being this is implemented for modern POSIX
+systems and for MS-Windows, for other systems they fall back to their
+counterparts `string-lessp' and `string-equal'.
 
 
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