Require AC_HEADER_TIME rather than simply using it.

diff --git a/m4/nanosleep.m4 b/m4/nanosleep.m4
index 0395804..1d15a73 100644 (file)
--- a/m4/nanosleep.m4
+++ b/m4/nanosleep.m4
@@ -1,4 +1,4 @@
-#serial 2
+#serial 3
 
 dnl From Jim Meyering.
 dnl Check for the nanosleep function.
@@ -14,7 +14,7 @@ AC_DEFUN(jm_FUNC_NANOSLEEP,
  AC_CACHE_CHECK([whether nanosleep works],
   jm_cv_func_nanosleep_works,
   [
-   AC_HEADER_TIME
+   AC_REQUIRE([AC_HEADER_TIME])
    AC_TRY_RUN([
 #   if TIME_WITH_SYS_TIME
 #    include <sys/time.h>