This libgo patch is a backport of https://golang.org/cl/17154. It fixes the tests for the net package to not run the multicast tests on a nil interface when using -test.short, which is the default when running make check. This should fix GCC PR 65785. Bootstrapped and ran Go testsuite on x86_64-pc-linux-gnu. Committed to mainline and GCC 5 branch.
Ian
Index: gcc/go/gofrontend/MERGE =================================================================== --- gcc/go/gofrontend/MERGE (revision 230694) +++ gcc/go/gofrontend/MERGE (working copy) @@ -1,4 +1,4 @@ -b839c8c35af49bd6d86306ad34449654a4657cb1 +81dcb1ba4de82a6c9325cb322d5a832a6b1f168d The first line of this file holds the git revision number of the last merge done from the gofrontend repository. Index: libgo/go/net/listen_test.go =================================================================== --- libgo/go/net/listen_test.go (revision 230463) +++ libgo/go/net/listen_test.go (working copy) @@ -542,7 +542,7 @@ func TestIPv4MulticastListener(t *testin // routing stuff for finding out an appropriate // nexthop containing both network and link layer // adjacencies. - if ifi == nil && !*testExternal { + if ifi == nil && (testing.Short() || !*testExternal) { continue } for _, tt := range ipv4MulticastListenerTests { @@ -618,7 +618,7 @@ func TestIPv6MulticastListener(t *testin // routing stuff for finding out an appropriate // nexthop containing both network and link layer // adjacencies. - if ifi == nil && (!*testExternal || !*testIPv6) { + if ifi == nil && (testing.Short() || !*testExternal || !*testIPv6) { continue } for _, tt := range ipv6MulticastListenerTests {