* sysdep.c (MAXPATHLEN): Define only if needed.

src/ChangeLog

@@ -4,6 +4,7 @@
 	Fix pointer signedness issue.
 	(sys_subshell): Mark local as volatile if checking for lint,
 	to suppress a gcc -Wclobbered warning that does not seem to be right.
+	(MAXPATHLEN): Define only if needed.
 	* process.c (serial_open, serial_configure): Move decls from here ...
 	* systty.h: ... to here, so that they can be checked.

src/sysdep.c

@@ -1886,13 +1886,13 @@ emacs_write (int fildes, const char *buf, unsigned int nbyte)
  *	under error conditions.
  */
 
+#ifndef HAVE_GETWD
+
 #ifndef MAXPATHLEN
 /* In 4.1, param.h fails to define this.  */
 #define MAXPATHLEN 1024
 #endif
 
-#ifndef HAVE_GETWD
-
 char *
 getwd (char *pathname)
 {