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-rw-r--r--m4/uptime.m423
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diff --git a/m4/uptime.m4 b/m4/uptime.m4
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+#serial 7
+
+# Copyright (C) 1996, 1999, 2000, 2001, 2004 Free Software Foundation, Inc.
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+AC_PREREQ(2.13)
+
+AC_DEFUN([gl_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 "$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, 1,
+ [ Define if your system has the /proc/uptime special file.])
+ fi
+])