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-rw-r--r--configure.ac4
1 files changed, 4 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac
index 8095280..29c0d40 100644
--- a/configure.ac
+++ b/configure.ac
@@ -361,6 +361,10 @@ AC_CHECK_FUNCS(endutxent getutxent getutxid getutxline pututxline )
AC_CHECK_FUNCS(setutxent utmpxname)
AC_CHECK_FUNCS(logout updwtmp logwtmp)
+# OS X monotonic time
+AC_CHECK_HEADERS([mach/mach_time.h])
+AC_CHECK_FUNCS(mach_absolute_time)
+
AC_ARG_ENABLE(bundled-libtom,
[ --enable-bundled-libtom Force using bundled libtomcrypt/libtommath even if a system version exists.
--disable-bundled-libtom Force using system libtomcrypt/libtommath, fail if it does not exist.