Imported Upstream version 1.4

[debian/gzip] / m4 / sys_time_h.m4

diff --git a/m4/sys_time_h.m4 b/m4/sys_time_h.m4
index 13ac5763b3d5c76a26c6d5e5d0740f3b63f77cfb..9c16487957bc27ffd4ade8eba9943b1fb138df5d 100644 (file)
--- a/m4/sys_time_h.m4
+++ b/m4/sys_time_h.m4
@@ -1,6 +1,7 @@
 # Configure a replacement for <sys/time.h>.
+# serial 2
 
-# Copyright (C) 2007 Free Software Foundation, Inc.
+# Copyright (C) 2007, 2009, 2010 Free Software Foundation, Inc.
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
@@ -18,6 +19,7 @@ AC_DEFUN([gl_HEADER_SYS_TIME_H],
 AC_DEFUN([gl_HEADER_SYS_TIME_H_BODY],
 [
   AC_REQUIRE([AC_C_RESTRICT])
+  AC_CHECK_HEADERS_ONCE([sys/time.h])
   gl_CHECK_NEXT_HEADERS([sys/time.h])
 
   if test $ac_cv_header_sys_time_h = yes; then
@@ -30,12 +32,12 @@ AC_DEFUN([gl_HEADER_SYS_TIME_H_BODY],
   AC_CACHE_CHECK([for struct timeval], [gl_cv_sys_struct_timeval],
     [AC_COMPILE_IFELSE(
        [AC_LANG_PROGRAM(
-         [[#if HAVE_SYS_TIME_H
-            #include <sys/time.h>
-           #endif
-           #include <time.h>
-         ]],
-         [[static struct timeval x; x.tv_sec = x.tv_usec;]])],
+          [[#if HAVE_SYS_TIME_H
+             #include <sys/time.h>
+            #endif
+            #include <time.h>
+          ]],
+          [[static struct timeval x; x.tv_sec = x.tv_usec;]])],
        [gl_cv_sys_struct_timeval=yes],
        [gl_cv_sys_struct_timeval=no])])
   if test $gl_cv_sys_struct_timeval = yes; then