Add CVS checkout update instructions.

[gnulib.git] / m4 / vasnprintf.m4

diff --git a/m4/vasnprintf.m4 b/m4/vasnprintf.m4
index fa953aa..ef2de78 100644 (file)
--- a/m4/vasnprintf.m4
+++ b/m4/vasnprintf.m4
@@ -1,4 +1,4 @@
-# vasnprintf.m4 serial 17
+# vasnprintf.m4 serial 20
 dnl Copyright (C) 2002-2004, 2006-2007 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -57,6 +57,9 @@ AC_DEFUN([gl_PREREQ_VASNPRINTF],
   AC_REQUIRE([gt_TYPE_WCHAR_T])
   AC_REQUIRE([gt_TYPE_WINT_T])
   AC_CHECK_FUNCS(snprintf wcslen)
+  dnl Use the _snprintf function only if it is declared (because on NetBSD it
+  dnl is defined as a weak alias of snprintf; we prefer to use the latter).
+  AC_CHECK_DECLS([_snprintf], , , [#include <stdio.h>])
 ])
 
 # Extra prerequisites of lib/vasnprintf.c for supporting 'long double'
@@ -101,7 +104,7 @@ AC_DEFUN([gl_PREREQ_VASNPRINTF_INFINITE_LONG_DOUBLE],
   AC_REQUIRE([gl_PREREQ_VASNPRINTF_LONG_DOUBLE])
   case "$gl_cv_func_printf_long_double" in
     *yes)
-      case "$gl_cv_func_printf_infinite" in
+      case "$gl_cv_func_printf_infinite_long_double" in
         *yes)
           ;;
         *)
@@ -175,6 +178,19 @@ AC_DEFUN([gl_PREREQ_VASNPRINTF_FLAG_ZERO],
   esac
 ])
 
+# Prerequisites of lib/vasnprintf.c including all extras for POSIX compliance.
+AC_DEFUN([gl_PREREQ_VASNPRINTF_WITH_EXTRAS],
+[
+  AC_REQUIRE([gl_PREREQ_VASNPRINTF])
+  gl_PREREQ_VASNPRINTF_LONG_DOUBLE
+  gl_PREREQ_VASNPRINTF_INFINITE_DOUBLE
+  gl_PREREQ_VASNPRINTF_INFINITE_LONG_DOUBLE
+  gl_PREREQ_VASNPRINTF_DIRECTIVE_A
+  gl_PREREQ_VASNPRINTF_DIRECTIVE_F
+  gl_PREREQ_VASNPRINTF_FLAG_GROUPING
+  gl_PREREQ_VASNPRINTF_FLAG_ZERO
+])
+
 # Prerequisites of lib/asnprintf.c.
 AC_DEFUN([gl_PREREQ_ASNPRINTF],
 [