-# stdarg.m4 serial 2
-dnl Copyright (C) 2006, 2008 Free Software Foundation, Inc.
+# stdarg.m4 serial 6
+dnl Copyright (C) 2006, 2008-2015 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_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.
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"'
else
dnl Provide a substitute in <config.h>, either __va_copy or as a simple
dnl assignment.
- AC_CACHE_VAL([gl_cv_func___va_copy], [
- AC_TRY_COMPILE([#include <stdarg.h>], [
+ gl_CACHE_VAL_SILENT([gl_cv_func___va_copy], [
+ 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 $gl_cv_func___va_copy = yes; then
AC_DEFINE([va_copy], [__va_copy],
[Define as a macro for copying va_list variables.])
fi
fi
fi
+ AC_SUBST([STDARG_H])
+ AM_CONDITIONAL([GL_GENERATE_STDARG_H], [test -n "$STDARG_H"])
+ AC_SUBST([NEXT_STDARG_H])
])