-#serial 1
+#serial 5
-AC_DEFUN(jm_SYS_PROC_UPTIME,
+AC_PREREQ(2.13)
+
+AC_DEFUN([jm_SYS_PROC_UPTIME],
[ dnl Require AC_PROG_CC to see if we're cross compiling.
AC_REQUIRE([AC_PROG_CC])
AC_CACHE_CHECK([for /proc/uptime], jm_cv_have_proc_uptime,
[jm_cv_have_proc_uptime=no
test -f /proc/uptime \
- && test $ac_cv_prog_cc_cross = no \
+ && test "$cross_compiling" = no \
&& cat < /proc/uptime >/dev/null 2>/dev/null \
&& jm_cv_have_proc_uptime=yes])
if test $jm_cv_have_proc_uptime = yes; then
- AC_DEFINE(HAVE_PROC_UPTIME)
+ AC_DEFINE(HAVE_PROC_UPTIME, 1,
+ [ Define if your system has the /proc/uptime special file.])
fi
])