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[Emacs-diffs] master 215942d: Merge from gnulib
From: |
Paul Eggert |
Subject: |
[Emacs-diffs] master 215942d: Merge from gnulib |
Date: |
Tue, 06 Jan 2015 17:15:44 +0000 |
branch: master
commit 215942da54990e097f838cd8bdb7d7164a6e3463
Author: Paul Eggert <address@hidden>
Commit: Paul Eggert <address@hidden>
Merge from gnulib
* lib/stdio.in.h, m4/stdio_h.m4: Update from gnulib, incorporating:
2015-01-05 stdio: fix use of PRIdMAX on modern mingw
---
ChangeLog | 6 ++++++
lib/stdio.in.h | 7 ++++++-
m4/stdio_h.m4 | 20 +++++++++++++++++++-
3 files changed, 31 insertions(+), 2 deletions(-)
diff --git a/ChangeLog b/ChangeLog
index 36edfe6..ceceb68 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2015-01-06 Paul Eggert <address@hidden>
+
+ Merge from gnulib
+ * lib/stdio.in.h, m4/stdio_h.m4: Update from gnulib, incorporating:
+ 2015-01-05 stdio: fix use of PRIdMAX on modern mingw
+
2015-01-04 Paul Eggert <address@hidden>
* INSTALL: Mention 'make WERROR_CFLAGS='.
diff --git a/lib/stdio.in.h b/lib/stdio.in.h
index 2a639c4..759c94d 100644
--- a/lib/stdio.in.h
+++ b/lib/stdio.in.h
@@ -84,8 +84,13 @@
except that it indicates to GCC that the supported format string directives
are the ones of the system printf(), rather than the ones standardized by
ISO C99 and POSIX. */
-#define _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM(formatstring_parameter,
first_argument) \
+#if GNULIB_PRINTF_ATTRIBUTE_FLAVOR_GNU
+# define _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM(formatstring_parameter,
first_argument) \
+ _GL_ATTRIBUTE_FORMAT_PRINTF (formatstring_parameter, first_argument)
+#else
+# define _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM(formatstring_parameter,
first_argument) \
_GL_ATTRIBUTE_FORMAT ((__printf__, formatstring_parameter, first_argument))
+#endif
/* _GL_ATTRIBUTE_FORMAT_SCANF
indicates to GCC that the function takes a format string and arguments,
diff --git a/m4/stdio_h.m4 b/m4/stdio_h.m4
index 4217338..e0c4bde 100644
--- a/m4/stdio_h.m4
+++ b/m4/stdio_h.m4
@@ -1,4 +1,4 @@
-# stdio_h.m4 serial 43
+# stdio_h.m4 serial 44
dnl Copyright (C) 2007-2015 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
@@ -12,6 +12,24 @@ AC_DEFUN([gl_STDIO_H],
AC_REQUIRE([gl_STDIO_H_DEFAULTS])
gl_NEXT_HEADERS([stdio.h])
+ dnl Determine whether __USE_MINGW_ANSI_STDIO makes printf and
+ dnl inttypes.h behave like gnu instead of system; we must give our
+ dnl printf wrapper the right attribute to match.
+ AC_CACHE_CHECK([whether inttypes macros match system or gnu printf],
+ [gl_cv_func_printf_attribute_flavor],
+ [AC_EGREP_CPP([findme .(ll|j)d. findme],
+ [#define __STDC_FORMAT_MACROS 1
+ #include <stdio.h>
+ #include <inttypes.h>
+ findme PRIdMAX findme
+ ], [gl_cv_func_printf_attribute_flavor=gnu],
+ [gl_cv_func_printf_attribute_flavor=system])])
+ if test "$gl_cv_func_printf_attribute_flavor" = gnu; then
+ AC_DEFINE([GNULIB_PRINTF_ATTRIBUTE_FLAVOR_GNU], [1],
+ [Define to 1 if printf and friends should be labeled with
+ attribute "__gnu_printf__" instead of "__printf__"])
+ fi
+
dnl No need to create extra modules for these functions. Everyone who uses
dnl <stdio.h> likely needs them.
GNULIB_FSCANF=1
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