X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;ds=sidebyside;f=m4%2Fenviron.m4;h=b9dc2ef27e543825c4b1c4aae1309b186b009594;hb=27ae2d38c9ab3f1acfcccf57ed75611781be0f5e;hp=4c6849a3a8aa6741f4d95a48d97d6ba85e6d87f9;hpb=c1c9ce97bc500c318c09deb07556ede43a4ec3a9;p=gnulib.git

diff --git a/m4/environ.m4 b/m4/environ.m4
index 4c6849a3a..b9dc2ef27 100644
--- a/m4/environ.m4
+++ b/m4/environ.m4
@@ -1,4 +1,4 @@
-# environ.m4 serial 4
+# environ.m4 serial 5
 dnl Copyright (C) 2001-2004, 2006-2010 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -22,11 +22,13 @@ AC_DEFUN([gt_CHECK_VAR_DECL],
   define([gt_cv_var], [gt_cv_var_]$2[_declaration])
   AC_MSG_CHECKING([if $2 is properly declared])
   AC_CACHE_VAL([gt_cv_var], [
-    AC_TRY_COMPILE([$1
-      extern struct { int foo; } $2;],
-      [$2.foo = 1;],
-      gt_cv_var=no,
-      gt_cv_var=yes)])
+    AC_COMPILE_IFELSE(
+      [AC_LANG_PROGRAM(
+         [[$1
+           extern struct { int foo; } $2;]],
+         [[$2.foo = 1;]])],
+      [gt_cv_var=no],
+      [gt_cv_var=yes])])
   AC_MSG_RESULT([$gt_cv_var])
   if test $gt_cv_var = yes; then
     AC_DEFINE([HAVE_]m4_translit($2, [a-z], [A-Z])[_DECL], 1,