Fix building Make with Mingw

Alexey Pavlov <[email protected]> Mon, 23 Sep 2013 22:32:36 +0400

Newsgroups	gmane.comp.gnu.make.windows
Message-ID	<CABEPuQLXFLouf6Jh3Ehz4R=YxdV3eHwh5nF=w+Qu4CEeE_-cKw@mail.gmail.com>

$ diff -Naur a/w32/compat/posixfcn.c b/w32/compat/posixfcn.c
--- a/w32/compat/posixfcn.c      2013-09-23 21:25:20.368800000 +0400
+++ b/w32/compat/posixfcn.c 2013-09-23 22:28:15.607000000 +0400
@@ -26,7 +26,7 @@
 #include "makeint.h"
 #include "job.h"

-#ifdef NO_OUTPUT_SYNC
+#ifndef NO_OUTPUT_SYNC
 /* Support for OUTPUT_SYNC and related functionality.  */

 /* Emulation of fcntl that supports only F_GETFD and F_SETLKW.  */