Discussion:
[PATCH] stdio: don't redefine __USE_MINGW_ANSI_STDIO
(too old to reply)
Paul Eggert
2016-09-16 07:38:14 UTC
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Raw Message
* m4/stdio_h.m4 (gl_STDIO_H): Don't define __USE_MINGW_ANSI_STDIO
if it is already defined. Apparently GNU Emacs relies on this. See:
http://lists.gnu.org/archive/html/emacs-devel/2016-09/msg00416.html
---
ChangeLog | 7 +++++++
m4/stdio_h.m4 | 10 ++++++++--
2 files changed, 15 insertions(+), 2 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index 8d0b408..6609e2b 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2016-09-16 Paul Eggert <***@cs.ucla.edu>
+
+ stdio: don't redefine __USE_MINGW_ANSI_STDIO
+ * m4/stdio_h.m4 (gl_STDIO_H): Don't define __USE_MINGW_ANSI_STDIO
+ if it is already defined. Apparently GNU Emacs relies on this. See:
+ http://lists.gnu.org/archive/html/emacs-devel/2016-09/msg00416.html
+
2016-09-15 Eric Blake <***@redhat.com>

sys_types: avoid glibc 2.25 warnings about major()
diff --git a/m4/stdio_h.m4 b/m4/stdio_h.m4
index 5149981..eaa25a0 100644
--- a/m4/stdio_h.m4
+++ b/m4/stdio_h.m4
@@ -1,4 +1,4 @@
-# stdio_h.m4 serial 47
+# stdio_h.m4 serial 48
dnl Copyright (C) 2007-2016 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
@@ -6,7 +6,13 @@ dnl with or without modifications, as long as this notice is preserved.

AC_DEFUN([gl_STDIO_H],
[
- AC_DEFINE([__USE_MINGW_ANSI_STDIO], 1, [Use GNU style printf and scanf.])
+ AH_VERBATIM([MINGW_ANSI_STDIO],
+[/* Use GNU style printf and scanf. */
+#ifndef __USE_MINGW_ANSI_STDIO
+# undef __USE_MINGW_ANSI_STDIO
+#endif
+])
+ AC_DEFINE([__USE_MINGW_ANSI_STDIO])
AC_REQUIRE([gl_STDIO_H_DEFAULTS])
gl_NEXT_HEADERS([stdio.h])
--
2.7.4
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