added autoconf check for getgrouplist

diff --git a/configure.ac b/configure.ac
index ece3047f32e8b5da4da2d43b832ec561131aea3b..473083d9cdd94abc0d44f24e3c45b35d327b6b09 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -965,6 +965,9 @@ AC_CHECK_FUNC([fallocate],
        [AC_DEFINE([CEPH_HAVE_FALLOCATE], [], [fallocate(2) is supported])],
        [])
 
+# getgrouplist
+AC_CHECK_FUNCS([getgrouplist])
+
 #
 # Test for time-related `struct stat` members.
 #