--- sudo-1.6.8p12/configure.in.getgrouplist	2007-04-12 10:16:12.000000000 +0200
+++ sudo-1.6.8p12/configure.in	2007-04-12 10:18:16.000000000 +0200
@@ -1694,7 +1694,7 @@
 dnl Function checks
 dnl
 AC_CHECK_FUNCS(strchr strrchr memchr memcpy memset sysconf tzset \
-	       strftime setrlimit initgroups fstat gettimeofday)
+	       strftime setrlimit initgroups getgrouplist fstat gettimeofday)
 AC_CHECK_FUNCS(seteuid, , [AC_DEFINE(NO_SAVED_IDS)])
 if test -z "$SKIP_SETRESUID"; then
     AC_CHECK_FUNCS(setresuid, [SKIP_SETREUID=yes])
--- sudo-1.6.8p12/configure.getgrouplist	2005-10-28 02:48:25.000000000 +0200
+++ sudo-1.6.8p12/configure	2007-04-12 10:18:16.000000000 +0200
@@ -24677,7 +24677,7 @@
 
 
 for ac_func in strchr strrchr memchr memcpy memset sysconf tzset \
-	       strftime setrlimit initgroups fstat gettimeofday
+	       strftime setrlimit initgroups getgrouplist fstat gettimeofday
 do
 as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
 echo "$as_me:$LINENO: checking for $ac_func" >&5
--- sudo-1.6.8p12/check.c.getgrouplist	2005-03-25 02:55:31.000000000 +0100
+++ sudo-1.6.8p12/check.c	2007-04-12 10:18:16.000000000 +0200
@@ -299,6 +299,24 @@
 	    return(TRUE);
     }
 
+#ifdef HAVE_GETGROUPLIST
+    {
+	gid_t *grouplist, grouptmp;
+	int n_groups, i;
+	n_groups = 1;
+	if (getgrouplist(user_name, user_gid, &grouptmp, &n_groups) == -1) {
+	    grouplist = (gid_t *) emalloc(sizeof(gid_t) * (n_groups + 1));
+	    if (getgrouplist(user_name, user_gid, grouplist, &n_groups) > 0)
+		for (i = 0; i < n_groups; i++)
+		    if (grouplist[i] == grp->gr_gid) {
+			free(grouplist);
+			return(TRUE);
+		    }
+	    free(grouplist);
+	}
+    }
+#endif
+
     return(FALSE);
 }
 
--- sudo-1.6.8p12/config.h.in.getgrouplist	2007-04-12 10:16:12.000000000 +0200
+++ sudo-1.6.8p12/config.h.in	2007-04-12 10:18:16.000000000 +0200
@@ -122,6 +122,9 @@
 /* Define to 1 if you have the `getdomainname' function. */
 #undef HAVE_GETDOMAINNAME
 
+/* Define to 1 if you have the `getgrouplist' function. */
+#undef HAVE_GETGROUPLIST
+
 /* Define to 1 if you have the `getifaddrs' function. */
 #undef HAVE_GETIFADDRS