X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=m4%2Ftime_r.m4;h=f9bed0c5c83db52f076eff5e390bb44d6af9b13b;hb=115dcb2a1ade67d78b430081e225f46aad742e7b;hp=9e82d39ffbdfe2c86d33a8d66f3c41aae9c7c46d;hpb=57505a676083a77cf44f683f65281c7fff5bf6fb;p=gnulib.git

diff --git a/m4/time_r.m4 b/m4/time_r.m4
index 9e82d39ff..f9bed0c5c 100644
--- a/m4/time_r.m4
+++ b/m4/time_r.m4
@@ -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(