libgo: update to Go 1.8 release candidate 1

    
    Compiler changes:
      * Change map assignment to use mapassign and assign value directly.
      * Change string iteration to use decoderune, faster for ASCII strings.
      * Change makeslice to take int, and use makeslice64 for larger values.
      * Add new noverflow field to hmap struct used for maps.
    
    Unresolved problems, to be fixed later:
      * Commented out test in go/types/sizes_test.go that doesn't compile.
      * Commented out reflect.TestStructOf test for padding after zero-sized field.
    
    Reviewed-on: https://go-review.googlesource.com/35231

gotools/:
	Updates for Go 1.8rc1.
	* Makefile.am (go_cmd_go_files): Add bug.go.
	(s-zdefaultcc): Write defaultPkgConfig.
	* Makefile.in: Rebuild.

From-SVN: r244456

1 files changed, 4 insertions, 3 deletions

diff --git a/libgo/go/syscall/sockcmsg_unix.go b/libgo/go/syscall/sockcmsg_unix.go
index b25f8476394..016169929b7 100644
--- a/libgo/go/syscall/sockcmsg_unix.go
+++ b/libgo/go/syscall/sockcmsg_unix.go
@@ -16,9 +16,10 @@ import (
 // Round the length of a raw sockaddr up to align it properly.
 func cmsgAlignOf(salen int) int {
 	salign := int(sizeofPtr)
-	// NOTE: It seems like 64-bit Darwin and DragonFly BSD kernels
-	// still require 32-bit aligned access to network subsystem.
-	if darwin64Bit || dragonfly64Bit {
+	// NOTE: It seems like 64-bit Darwin, DragonFly BSD and
+	// Solaris kernels still require 32-bit aligned access to
+	// network subsystem.
+	if darwin64Bit || dragonfly64Bit || solaris64Bit {
 		salign = 4
 	}
 	// NOTE: Solaris always uses 32-bit alignment,