Import upstream version 1.26

[debian/tar] / m4 / time_r.m4

diff --git a/m4/time_r.m4 b/m4/time_r.m4
index 9e82d39ffbdfe2c86d33a8d66f3c41aae9c7c46d..9bb28005fc0021f834ce64a17d5ded2de013608d 100644 (file)
--- a/m4/time_r.m4
+++ b/m4/time_r.m4
@@ -1,6 +1,6 @@
 dnl Reentrant time functions: localtime_r, gmtime_r.
 
-dnl Copyright (C) 2003, 2006-2010 Free Software Foundation, Inc.
+dnl Copyright (C) 2003, 2006-2011 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.
@@ -15,8 +15,16 @@ AC_DEFUN([gl_TIME_R],
   AC_REQUIRE([gl_HEADER_TIME_H_DEFAULTS])
   AC_REQUIRE([AC_C_RESTRICT])
 
+  dnl Some systems don't declare localtime_r() and gmtime_r() if _REENTRANT is
+  dnl not defined.
+  AC_CHECK_DECLS_ONCE([localtime_r])
+  if test $ac_cv_have_decl_localtime_r = no; then
+    HAVE_DECL_LOCALTIME_R=0
+  fi
+
   AC_CHECK_FUNCS_ONCE([localtime_r])
   if test $ac_cv_func_localtime_r = yes; then
+    HAVE_LOCALTIME_R=1
     AC_CACHE_CHECK([whether localtime_r is compatible with its POSIX signature],
       [gl_cv_time_r_posix],
       [AC_COMPILE_IFELSE(