Merge branch 'master' into xwidget

[gnu-emacs] / m4 / stdio_h.m4

diff --git a/m4/stdio_h.m4 b/m4/stdio_h.m4
index a8326f3c3490ea7f46c187e83c71ffe14d43b387..e0c4bde1f8e5cf39d248148741f027a6d7a752c4 100644 (file)
--- a/m4/stdio_h.m4
+++ b/m4/stdio_h.m4
@@ -1,24 +1,45 @@
-# stdio_h.m4 serial 37
-dnl Copyright (C) 2007-2011 Free Software Foundation, Inc.
+# 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,
 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])
-  AC_REQUIRE([AC_C_INLINE])
   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
+  gl_MODULE_INDICATOR([fscanf])
   GNULIB_SCANF=1
+  gl_MODULE_INDICATOR([scanf])
   GNULIB_FGETC=1
   GNULIB_GETC=1
   GNULIB_GETCHAR=1
   GNULIB_FGETS=1
-  GNULIB_GETS=1
   GNULIB_FREAD=1
   dnl This ifdef is necessary to avoid an error "missing file lib/stdio-read.c"
   dnl "expected source file, required through AC_LIBSOURCES, not found". It is
@@ -72,10 +93,10 @@ AC_DEFUN([gl_STDIO_H],
 
   dnl Check for declarations of anything we want to poison if the
   dnl corresponding gnulib module is not in use, and which is not
-  dnl guaranteed by C89.
+  dnl guaranteed by both C89 and C11.
   gl_WARN_ON_USE_PREPARE([[#include <stdio.h>
-    ]], [dprintf fpurge fseeko ftello getdelim getline popen renameat
-    snprintf tmpfile vdprintf vsnprintf])
+    ]], [dprintf fpurge fseeko ftello getdelim getline gets pclose popen
+    renameat snprintf tmpfile vdprintf vsnprintf])
 ])
 
 AC_DEFUN([gl_STDIO_MODULE_INDICATOR],
@@ -91,6 +112,7 @@ AC_DEFUN([gl_STDIO_H_DEFAULTS],
 [
   GNULIB_DPRINTF=0;              AC_SUBST([GNULIB_DPRINTF])
   GNULIB_FCLOSE=0;               AC_SUBST([GNULIB_FCLOSE])
+  GNULIB_FDOPEN=0;               AC_SUBST([GNULIB_FDOPEN])
   GNULIB_FFLUSH=0;               AC_SUBST([GNULIB_FFLUSH])
   GNULIB_FGETC=0;                AC_SUBST([GNULIB_FGETC])
   GNULIB_FGETS=0;                AC_SUBST([GNULIB_FGETS])
@@ -112,9 +134,9 @@ AC_DEFUN([gl_STDIO_H_DEFAULTS],
   GNULIB_GETCHAR=0;              AC_SUBST([GNULIB_GETCHAR])
   GNULIB_GETDELIM=0;             AC_SUBST([GNULIB_GETDELIM])
   GNULIB_GETLINE=0;              AC_SUBST([GNULIB_GETLINE])
-  GNULIB_GETS=0;                 AC_SUBST([GNULIB_GETS])
   GNULIB_OBSTACK_PRINTF=0;       AC_SUBST([GNULIB_OBSTACK_PRINTF])
   GNULIB_OBSTACK_PRINTF_POSIX=0; AC_SUBST([GNULIB_OBSTACK_PRINTF_POSIX])
+  GNULIB_PCLOSE=0;               AC_SUBST([GNULIB_PCLOSE])
   GNULIB_PERROR=0;               AC_SUBST([GNULIB_PERROR])
   GNULIB_POPEN=0;                AC_SUBST([GNULIB_POPEN])
   GNULIB_PRINTF=0;               AC_SUBST([GNULIB_PRINTF])
@@ -153,11 +175,14 @@ AC_DEFUN([gl_STDIO_H_DEFAULTS],
   HAVE_DPRINTF=1;                AC_SUBST([HAVE_DPRINTF])
   HAVE_FSEEKO=1;                 AC_SUBST([HAVE_FSEEKO])
   HAVE_FTELLO=1;                 AC_SUBST([HAVE_FTELLO])
+  HAVE_PCLOSE=1;                 AC_SUBST([HAVE_PCLOSE])
+  HAVE_POPEN=1;                  AC_SUBST([HAVE_POPEN])
   HAVE_RENAMEAT=1;               AC_SUBST([HAVE_RENAMEAT])
   HAVE_VASPRINTF=1;              AC_SUBST([HAVE_VASPRINTF])
   HAVE_VDPRINTF=1;               AC_SUBST([HAVE_VDPRINTF])
   REPLACE_DPRINTF=0;             AC_SUBST([REPLACE_DPRINTF])
   REPLACE_FCLOSE=0;              AC_SUBST([REPLACE_FCLOSE])
+  REPLACE_FDOPEN=0;              AC_SUBST([REPLACE_FDOPEN])
   REPLACE_FFLUSH=0;              AC_SUBST([REPLACE_FFLUSH])
   REPLACE_FOPEN=0;               AC_SUBST([REPLACE_FOPEN])
   REPLACE_FPRINTF=0;             AC_SUBST([REPLACE_FPRINTF])