-# obstack-printf.m4 serial 1
-dnl Copyright (C) 2008 Free Software Foundation, Inc.
+# obstack-printf.m4 serial 3
+dnl Copyright (C) 2008, 2009, 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.
AC_DEFUN([gl_FUNC_OBSTACK_PRINTF],
[
+ dnl Persuade glibc <stdio.h> to declare obstack_printf(), obstack_vprintf().
+ AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
+
AC_REQUIRE([gl_STDIO_H_DEFAULTS])
AC_CHECK_FUNCS_ONCE([obstack_printf])
if test $ac_cv_func_obstack_printf = no ; then
gl_REPLACE_OBSTACK_PRINTF
fi
- AC_CHECK_DECLS_ONCE([obstack_printf])
- if test $ac_cv_have_decl_obstack_printf = no; then
- HAVE_DECL_OBSTACK_PRINTF=0
- fi
+ gl_DECL_OBSTACK_PRINTF
])
AC_DEFUN([gl_REPLACE_OBSTACK_PRINTF],
REPLACE_OBSTACK_PRINTF=1
fi
])
+
+dnl Ensure obstack_printf() and obstack_vprintf() are declared
+dnl (whether or not they are being replaced).
+AC_DEFUN([gl_DECL_OBSTACK_PRINTF],
+[
+ AC_CHECK_DECLS_ONCE([obstack_printf])
+ if test $ac_cv_have_decl_obstack_printf = no; then
+ HAVE_DECL_OBSTACK_PRINTF=0
+ fi
+])