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.

1 files changed, 3 insertions, 0 deletions

diff --git a/src/w32.c b/src/w32.c
index 7cb9d8960c5..25549d79d7f 100644
--- a/src/w32.c
+++ b/src/w32.c
@@ -309,6 +309,8 @@ static BOOL g_b_init_set_named_security_info_w;
 static BOOL g_b_init_set_named_security_info_a;
 static BOOL g_b_init_get_adapters_info;
 
+BOOL g_b_init_compare_string_w;
+
 /*
   BEGIN: Wrapper functions around OpenProcessToken
   and other functions in advapi32.dll that are only
@@ -9068,6 +9070,7 @@ globals_of_w32 (void)
   g_b_init_set_named_security_info_w = 0;
   g_b_init_set_named_security_info_a = 0;
   g_b_init_get_adapters_info = 0;
+  g_b_init_compare_string_w = 0;
   num_of_processors = 0;
   /* The following sets a handler for shutdown notifications for
      console apps. This actually applies to Emacs in both console and