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-rw-r--r--m4/stdio_h.m415
1 files changed, 11 insertions, 4 deletions
diff --git a/m4/stdio_h.m4 b/m4/stdio_h.m4
index 256efe1cb..781fa8d38 100644
--- a/m4/stdio_h.m4
+++ b/m4/stdio_h.m4
@@ -1,5 +1,5 @@
-# stdio_h.m4 serial 21
-dnl Copyright (C) 2007-2009 Free Software Foundation, Inc.
+# stdio_h.m4 serial 25
+dnl Copyright (C) 2007-2010 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.
@@ -7,6 +7,7 @@ dnl with or without modifications, as long as this notice is preserved.
AC_DEFUN([gl_STDIO_H],
[
AC_REQUIRE([gl_STDIO_H_DEFAULTS])
+ AC_REQUIRE([AC_C_INLINE])
gl_CHECK_NEXT_HEADERS([stdio.h])
dnl No need to create extra modules for these functions. Everyone who uses
dnl <stdio.h> likely needs them.
@@ -30,6 +31,13 @@ AC_DEFUN([gl_STDIO_H],
AC_LIBOBJ([stdio-write])
fi
])
+
+ 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.
+ gl_WARN_ON_USE_PREPARE([[#include <stdio.h>
+ ]], [dprintf fpurge fseeko ftello getdelim getline popen renameat
+ snprintf vdprintf vsnprintf])
])
AC_DEFUN([gl_STDIO_MODULE_INDICATOR],
@@ -89,8 +97,6 @@ AC_DEFUN([gl_STDIO_H_DEFAULTS],
HAVE_DECL_SNPRINTF=1; AC_SUBST([HAVE_DECL_SNPRINTF])
HAVE_DECL_VSNPRINTF=1; AC_SUBST([HAVE_DECL_VSNPRINTF])
HAVE_DPRINTF=1; AC_SUBST([HAVE_DPRINTF])
- HAVE_FSEEKO=1; AC_SUBST([HAVE_FSEEKO])
- HAVE_FTELLO=1; AC_SUBST([HAVE_FTELLO])
HAVE_RENAMEAT=1; AC_SUBST([HAVE_RENAMEAT])
HAVE_VASPRINTF=1; AC_SUBST([HAVE_VASPRINTF])
HAVE_VDPRINTF=1; AC_SUBST([HAVE_VDPRINTF])
@@ -105,6 +111,7 @@ AC_DEFUN([gl_STDIO_H_DEFAULTS],
REPLACE_FSEEKO=0; AC_SUBST([REPLACE_FSEEKO])
REPLACE_FTELL=0; AC_SUBST([REPLACE_FTELL])
REPLACE_FTELLO=0; AC_SUBST([REPLACE_FTELLO])
+ REPLACE_GETDELIM=0; AC_SUBST([REPLACE_GETDELIM])
REPLACE_GETLINE=0; AC_SUBST([REPLACE_GETLINE])
REPLACE_OBSTACK_PRINTF=0; AC_SUBST([REPLACE_OBSTACK_PRINTF])
REPLACE_PERROR=0; AC_SUBST([REPLACE_PERROR])