Make opendir on MS-Windows accept a 'const char *'.

 src/w32.c (opendir): Now accepts a 'const char *'.

 nt/inc/dirent.h (opendir): Update prototype.

2 files changed, 5 insertions, 1 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index 221d525f16e..abbe4ed6dd4 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,7 @@
+2013-01-28  Eli Zaretskii  <eliz@gnu.org>
+
+        * w32.c (opendir): Now accepts a 'const char *'.
+
 2013-01-28  Dmitry Antipov  <dmantipov@yandex.ru>
 
         Remove obsolete redisplay code.  See the discussion at
diff --git a/src/w32.c b/src/w32.c
index f722bc5f397..6bcc8e19278 100644
--- a/src/w32.c
+++ b/src/w32.c
@@ -2809,7 +2809,7 @@ static char  *read_unc_volume (HANDLE, char *, int);
 static void   close_unc_volume (HANDLE);
 
 DIR *
-opendir (char *filename)
+opendir (const char *filename)
 {
   DIR *dirp;