X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=m4%2Ftimegm.m4;h=bdaafbff803d0705a96c4237f4e0560dc9a4d58a;hb=580effc9a799bd5c5b0d0ffb1830dffb76842c7e;hp=010a6f20a61dc9e266814785ea3c9841b2c4526e;hpb=a53bd58c8300977941a9b9f0a7a4438ea6ce3277;p=gnulib.git

diff --git a/m4/timegm.m4 b/m4/timegm.m4
index 010a6f20a..bdaafbff8 100644
--- a/m4/timegm.m4
+++ b/m4/timegm.m4
@@ -1,4 +1,4 @@
-# timegm.m4 serial 7
+# timegm.m4 serial 8
 dnl Copyright (C) 2003, 2007, 2009, 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,
@@ -9,16 +9,16 @@ AC_DEFUN([gl_FUNC_TIMEGM],
   AC_REQUIRE([gl_HEADER_TIME_H_DEFAULTS])
   AC_REQUIRE([gl_FUNC_MKTIME])
   REPLACE_TIMEGM=0
-  if test $ac_cv_func_working_mktime = no; then
-    # Assume that timegm is buggy if mktime is.
-    REPLACE_TIMEGM=1
-  else
-    AC_CHECK_FUNCS([timegm])
-    if test $ac_cv_func_timegm != yes; then
+  AC_CHECK_FUNCS_ONCE([timegm])
+  if test $ac_cv_func_timegm = yes; then
+    if test $ac_cv_func_working_mktime = no; then
+      # Assume that timegm is buggy if mktime is.
       REPLACE_TIMEGM=1
     fi
+  else
+    HAVE_TIMEGM=0
   fi
-  if test $REPLACE_TIMEGM = 1; then
+  if test $HAVE_TIMEGM = 0 || test $REPLACE_TIMEGM = 1; then
     AC_LIBOBJ([timegm])
     gl_PREREQ_TIMEGM
   fi