-#serial 2
+#serial 3
dnl From Jim Meyering.
dnl
AC_DEFUN([AC_FUNC_GETTIMEOFDAY_CLOBBER],
[
AC_REQUIRE([AC_HEADER_TIME])
- AC_CHECK_HEADERS(string.h stdlib.h)
+ AC_CHECK_HEADERS_ONCE(stdlib.h string.h)
AC_CACHE_CHECK([whether gettimeofday clobbers localtime buffer],
jm_cv_func_gettimeofday_clobber,
[AC_TRY_RUN([
[Define to rpl_gettimeofday if the replacement function should be used.])
AC_DEFINE(GETTIMEOFDAY_CLOBBERS_LOCALTIME_BUFFER, 1,
[Define if gettimeofday clobbers localtime's static buffer.])
+ gl_PREREQ_GETTIMEOFDAY
fi
])
+
+# Prerequisites of lib/gettimeofday.c.
+AC_DEFUN([gl_PREREQ_GETTIMEOFDAY], [
+ AC_REQUIRE([AC_HEADER_TIME])
+])