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-rw-r--r--m4/uptime.m44
1 files changed, 2 insertions, 2 deletions
diff --git a/m4/uptime.m4 b/m4/uptime.m4
index c6f637df8..74fef5e72 100644
--- a/m4/uptime.m4
+++ b/m4/uptime.m4
@@ -1,4 +1,4 @@
-#serial 3
+#serial 4
AC_PREREQ(2.13)
@@ -8,7 +8,7 @@ AC_DEFUN(jm_SYS_PROC_UPTIME,
AC_CACHE_CHECK([for /proc/uptime], jm_cv_have_proc_uptime,
[jm_cv_have_proc_uptime=no
test -f /proc/uptime \
- && test $cross_compiling = no \
+ && test "$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