* lib/stat-time.h: (get_stat_birthtime): Check for zero-valued

[gnulib.git] / m4 / clock_time.m4

diff --git a/m4/clock_time.m4 b/m4/clock_time.m4
index 63196ae..227a597 100644 (file)
--- a/m4/clock_time.m4
+++ b/m4/clock_time.m4
@@ -1,10 +1,14 @@
-# clock_time.m4 serial 7
-dnl Copyright (C) 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
+# clock_time.m4 serial 8
+dnl Copyright (C) 2002-2006 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.
 
-# Check for clock_gettime and clock_settime, and sets LIB_CLOCK_GETTIME.
+# Check for clock_gettime and clock_settime, and set LIB_CLOCK_GETTIME.
+# For a program named, say foo, you should add a line like the following
+# in the corresponding Makefile.am file:
+# foo_LDADD = $(LDADD) $(LIB_CLOCK_GETTIME)
+
 AC_DEFUN([gl_CLOCK_TIME],
 [
   dnl Persuade glibc and Solaris <time.h> to declare these functions.
@@ -20,7 +24,7 @@ AC_DEFUN([gl_CLOCK_TIME],
     AC_SEARCH_LIBS(clock_gettime, [rt posix4],
                    [test "$ac_cv_search_clock_gettime" = "none required" ||
                     LIB_CLOCK_GETTIME=$ac_cv_search_clock_gettime])
-    AC_SUBST(LIB_CLOCK_GETTIME)
+    AC_SUBST([LIB_CLOCK_GETTIME])
     AC_CHECK_FUNCS(clock_gettime clock_settime)
   LIBS=$gl_saved_libs
 ])