Pullup ticket #5396 - requested by sevan

lang/go: bugfix

Revisions pulled up:
- lang/go/Makefile                                              1.51
- lang/go/distinfo                                              1.47
- lang/go/patches/patch-src_runtime_mem__bsd.go                 1.1
- lang/go/patches/patch-src_syscall_syscall__solaris.go         deleted

---
   Module Name:    pkgsrc
   Committed By:   fhajny
   Date:           Tue May  2 17:15:31 UTC 2017

   Modified Files:
           pkgsrc/lang/go: Makefile distinfo
   Added Files:
           pkgsrc/lang/go/patches: patch-src_runtime_mem__bsd.go
   Removed Files:
           pkgsrc/lang/go/patches: patch-src_syscall_syscall__solaris.go

   Log Message:
   * Remove patch adding syscall.Dup2() for SunOS, software should be using
   unix.Dup2() instead.
     https://github.com/joyent/pkgsrc/pull/492
   * Improve handling of low-memory situations on Illumos.
     https://github.com/joyent/pkgsrc/pull/493

lang/go/Makefile

@@ -1,10 +1,10 @@
-# $NetBSD: Makefile,v 1.49.2.1 2017/04/29 19:32:54 bsiegert Exp $
+# $NetBSD: Makefile,v 1.49.2.2 2017/05/06 15:19:40 bsiegert Exp $
 
 .include "version.mk"
 
 DISTNAME=	go${GO_VERSION}.src
 PKGNAME=	go-${GO_VERSION}
-PKGREVISION=	1
+PKGREVISION=	2
 CATEGORIES=	lang
 MASTER_SITES=	https://storage.googleapis.com/golang/
 
@@ -84,12 +84,6 @@ PLIST_VARS+=	route
 PLIST.route=	yes
 .endif
 
-pre-build:
-	cd ${WRKSRC}/src/syscall && \
-		env GOOS=${LOWER_OPSYS:Q} GOARCH=${GOARCH:Q} \
-		${PERL5} mksyscall_solaris.pl \
-		syscall_solaris.go syscall_solaris_amd64.go > zsyscall_solaris_amd64.go
-
 do-build:
 	cd ${WRKSRC}/src && env GOROOT_BOOTSTRAP=${GOROOT_BOOTSTRAP:Q} GOROOT_FINAL=${GOROOT_FINAL:Q} ${BASH} ./make.bash
 

lang/go/distinfo

@@ -1,4 +1,4 @@
-$NetBSD: distinfo,v 1.44.2.1 2017/04/29 19:32:54 bsiegert Exp $
+$NetBSD: distinfo,v 1.44.2.2 2017/05/06 15:19:40 bsiegert Exp $
 
 SHA1 (go1.8.src.tar.gz) = 37945c372140c3a46c2c5b4b9ce382b6c8d88811
 RMD160 (go1.8.src.tar.gz) = 12f2840f1fd321f9d6be4dc066da6392ac30a2c3
@@ -7,5 +7,5 @@ Size (go1.8.src.tar.gz) = 15320083 bytes
 SHA1 (patch-lib_time_update.bash) = bcf565b97ae7898a9e5cef7686fe42c69bc0bba1
 SHA1 (patch-misc_io_clangwrap.sh) = cd91c47ba0fe7b6eb8009dd261c0c26c7d581c29
 SHA1 (patch-src_crypto_x509_root__bsd.go) = 0eca1eafa967268ae9b224be4aeda347ebc91901
+SHA1 (patch-src_runtime_mem__bsd.go) = ceaeb6714c7793c1e3f967709e29bf394f94d4e8
 SHA1 (patch-src_runtime_os__netbsd.go) = 561f53c084c5bff93171a411bebd79bebf1e3696
-SHA1 (patch-src_syscall_syscall__solaris.go) = 436371947897dcba574a6dfecc6bbcd04f6e25b2

lang/go/patches/patch-src_runtime_mem__bsd.go

@@ -0,0 +1,25 @@
+$NetBSD: patch-src_runtime_mem__bsd.go,v 1.1.2.2 2017/05/06 15:19:40 bsiegert Exp $
+
+Improve handling of low-memory situations on Illumos.
+https://github.com/joyent/pkgsrc/pull/493
+
+--- src/runtime/mem_bsd.go.orig	2017-04-28 12:14:22.000000000 -0700
++++ src/runtime/mem_bsd.go	2017-04-28 12:14:31.000000000 -0700
+@@ -76,7 +76,7 @@
+ 			flags |= _MAP_FIXED
+ 		}
+ 		p := mmap(v, n, _PROT_READ|_PROT_WRITE, flags, -1, 0)
+-		if uintptr(p) == _ENOMEM {
++		if uintptr(p) == _ENOMEM || (GOOS == "solaris" && uintptr(p) == _EAGAIN) {
+ 			throw("runtime: out of memory")
+ 		}
+ 		if p != v {
+@@ -87,7 +87,7 @@
+ 	}
+
+ 	p := mmap(v, n, _PROT_READ|_PROT_WRITE, _MAP_ANON|_MAP_FIXED|_MAP_PRIVATE, -1, 0)
+-	if uintptr(p) == _ENOMEM {
++	if uintptr(p) == _ENOMEM || (GOOS == "solaris" && uintptr(p) == _EAGAIN) {
+ 		throw("runtime: out of memory")
+ 	}
+ 	if p != v {