Fix MS-Windows build following 2012-11-21T21:06:52Z!eggert@cs.ucla.edu.

src/w32.c (getcwd): Fix the 2nd argument type, to prevent conflicts
 with Windows system header.

Fixes: debbugs:12945

src/ChangeLog

@@ -1,3 +1,8 @@
+2012-11-22  Eli Zaretskii  <eliz@gnu.org>
+
+	* w32.c (getcwd): Fix the 2nd argument type, to prevent conflicts
+	with Windows system header.
+
 2012-11-21  Paul Eggert  <eggert@cs.ucla.edu>
 
 	Assume POSIX 1003.1-1988 or later for unistd.h (Bug#12945).

src/w32.c

@@ -908,7 +908,7 @@ static char startup_dir[MAXPATHLEN];
 
 /* Get the current working directory.  */
 char *
-getcwd (char *dir, size_t dirsize)
+getcwd (char *dir, int dirsize)
 {
   if (!dirsize)
     {