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authorIgor Pashev <pashev.igor@gmail.com>2015-07-04 17:17:09 +0300
committerIgor Pashev <pashev.igor@gmail.com>2015-07-04 17:17:09 +0300
commitcc78bdc31749e9754120ae5a9d4849f4832b40a4 (patch)
tree4f9e3f2064e56651ed8d41ae9d8ce8b08fc5241b /m4/stdio_h.m4
parent8425beb209e6fedf50bcdd934ced14dfa0d7b596 (diff)
parent71cd8e3a743046573744123777061b64881bf372 (diff)
downloadcoreutils-cc78bdc31749e9754120ae5a9d4849f4832b40a4.tar.gz
Merge tag 'upstream/8.24'
Upstream version 8.24 Conflicts: INSTALL Makefile.in aclocal.m4 build-aux/config.guess build-aux/config.rpath build-aux/config.sub build-aux/depcomp build-aux/missing build-aux/test-driver build-aux/texinfo.tex doc/coreutils.info doc/stamp-vti doc/version.texi gnulib-tests/Makefile.in po/Makefile.in.in
Diffstat (limited to 'm4/stdio_h.m4')
-rw-r--r--m4/stdio_h.m431
1 files changed, 29 insertions, 2 deletions
diff --git a/m4/stdio_h.m4 b/m4/stdio_h.m4
index d15913a3..f60cc215 100644
--- a/m4/stdio_h.m4
+++ b/m4/stdio_h.m4
@@ -1,14 +1,41 @@
-# stdio_h.m4 serial 43
-dnl Copyright (C) 2007-2014 Free Software Foundation, Inc.
+# stdio_h.m4 serial 46
+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,
dnl with or without modifications, as long as this notice is preserved.
AC_DEFUN([gl_STDIO_H],
[
+ dnl For __USE_MINGW_ANSI_STDIO
+ AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
+
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([which flavor of printf attribute matches inttypes macros],
+ [gl_cv_func_printf_attribute_flavor],
+ [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
+ #define __STDC_FORMAT_MACROS 1
+ #include <stdio.h>
+ #include <inttypes.h>
+ /* For non-mingw systems, compilation will trivially succeed.
+ For mingw, compilation will succeed for older mingw (system
+ printf, "I64d") and fail for newer mingw (gnu printf, "lld"). */
+ #if ((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__) && \
+ (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4))
+ extern char PRIdMAX_probe[sizeof PRIdMAX == sizeof "I64d" ? 1 : -1];
+ #endif
+ ]])], [gl_cv_func_printf_attribute_flavor=system],
+ [gl_cv_func_printf_attribute_flavor=gnu])])
+ 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