X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=m4%2Fstdarg.m4;h=5705de9ecaa9624d31dde5993659c2bffc5d3a2f;hb=336406c13cc08ee13d6a15cc8cf86efb9132a830;hp=5c87bd8b5f6da4b6b64bb94f68fc61f8c2956e9d;hpb=b2e2010c7c902235b5efb5bd3c6529f61b093aa4;p=gnulib.git

diff --git a/m4/stdarg.m4 b/m4/stdarg.m4
index 5c87bd8b5..5705de9ec 100644
--- a/m4/stdarg.m4
+++ b/m4/stdarg.m4
@@ -1,5 +1,5 @@
-# stdarg.m4 serial 3
-dnl Copyright (C) 2006, 2008-2010 Free Software Foundation, Inc.
+# stdarg.m4 serial 6
+dnl Copyright (C) 2006, 2008-2011 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.
@@ -9,16 +9,20 @@ dnl Provide a working va_copy in combination with <stdarg.h>.
 
 AC_DEFUN([gl_STDARG_H],
 [
-  STDARG_H='';                AC_SUBST([STDARG_H])
-  NEXT_STDARG_H='<stdarg.h>'; AC_SUBST([NEXT_STDARG_H])
+  STDARG_H=''
+  NEXT_STDARG_H='<stdarg.h>'
   AC_MSG_CHECKING([for va_copy])
   AC_CACHE_VAL([gl_cv_func_va_copy], [
-    AC_TRY_COMPILE([#include <stdarg.h>], [
+    AC_COMPILE_IFELSE(
+      [AC_LANG_PROGRAM(
+         [[#include <stdarg.h>]],
+         [[
 #ifndef va_copy
 void (*func) (va_list, va_list) = va_copy;
 #endif
-],
-      [gl_cv_func_va_copy=yes], [gl_cv_func_va_copy=no])])
+         ]])],
+      [gl_cv_func_va_copy=yes],
+      [gl_cv_func_va_copy=no])])
   AC_MSG_RESULT([$gl_cv_func_va_copy])
   if test $gl_cv_func_va_copy = no; then
     dnl Provide a substitute.
@@ -37,7 +41,7 @@ void (*func) (va_list, va_list) = va_copy;
     if test $gl_aixcc = yes; then
       dnl Provide a substitute <stdarg.h> file.
       STDARG_H=stdarg.h
-      gl_CHECK_NEXT_HEADERS([stdarg.h])
+      gl_NEXT_HEADERS([stdarg.h])
       dnl Fallback for the case when <stdarg.h> contains only macro definitions.
       if test "$gl_cv_next_stdarg_h" = '""'; then
         gl_cv_next_stdarg_h='"///usr/include/stdarg.h"'
@@ -47,12 +51,16 @@ void (*func) (va_list, va_list) = va_copy;
       dnl Provide a substitute in <config.h>, either __va_copy or as a simple
       dnl assignment.
       gl_CACHE_VAL_SILENT([gl_cv_func___va_copy], [
-        AC_TRY_COMPILE([#include <stdarg.h>], [
+        AC_COMPILE_IFELSE(
+          [AC_LANG_PROGRAM(
+             [[#include <stdarg.h>]],
+             [[
 #ifndef __va_copy
 error, bail out
 #endif
-],
-          [gl_cv_func___va_copy=yes], [gl_cv_func___va_copy=no])])
+             ]])],
+          [gl_cv_func___va_copy=yes],
+          [gl_cv_func___va_copy=no])])
       if test $gl_cv_func___va_copy = yes; then
         AC_DEFINE([va_copy], [__va_copy],
           [Define as a macro for copying va_list variables.])
@@ -64,4 +72,7 @@ error, bail out
       fi
     fi
   fi
+  AC_SUBST([STDARG_H])
+  AM_CONDITIONAL([GL_GENERATE_STDARG_H], [test -n "$STDARG_H"])
+  AC_SUBST([NEXT_STDARG_H])
 ])