2006-09-28 Paolo Bonzini <bonzini@gnu.org>

[gnulib.git] / m4 / vasprintf.m4

diff --git a/m4/vasprintf.m4 b/m4/vasprintf.m4
index 1d00d93..18ca632 100644 (file)
--- a/m4/vasprintf.m4
+++ b/m4/vasprintf.m4
@@ -1,21 +1,27 @@
-# vasprintf.m4 serial 1
-dnl Copyright (C) 2002-2003 Free Software Foundation, Inc.
-dnl This file is free software, distributed under the terms of the GNU
-dnl General Public License.  As a special exception to the GNU General
-dnl Public License, this file may be distributed as part of a program
-dnl that contains a configuration script generated by Autoconf, under
-dnl the same distribution terms as the rest of that program.
+# vasprintf.m4 serial 2
+dnl Copyright (C) 2002-2003, 2006 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_VASPRINTF],
 [
   AC_REPLACE_FUNCS(vasprintf)
   if test $ac_cv_func_vasprintf = no; then
     AC_LIBOBJ(asprintf)
+    gl_PREREQ_VASPRINTF_H
     gl_PREREQ_VASPRINTF
     gl_PREREQ_ASPRINTF
   fi
 ])
 
+# Prerequisites of lib/vasprintf.h.
+AC_DEFUN([gl_PREREQ_VASPRINTF_H],
+[
+  dnl Persuade glibc <stdio.h> to declare asprintf() and vasprintf().
+  AC_REQUIRE([AC_GNU_SOURCE])
+])
+
 # Prerequisites of lib/vasprintf.c.
 AC_DEFUN([gl_PREREQ_VASPRINTF],
 [