diff -Nur gcc-5.4.0.orig/gotools/Makefile.in gcc-5.4.0/gotools/Makefile.in
--- gcc-5.4.0.orig/gotools/Makefile.in	2015-03-24 20:50:31.000000000 +0100
+++ gcc-5.4.0/gotools/Makefile.in	2016-09-11 19:42:36.812879672 +0200
@@ -231,7 +231,7 @@
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 AM_LDFLAGS = -L $(libgodir) -L $(libgodir)/.libs
-GOLINK = $(GOCOMPILER) $(GOCFLAGS) $(AM_GOCFLAGS) $(LDFLAGS) $(AM_LDFLAGS) -o $@
+GOLINK = $(GOCOMPILER) $(GOCFLAGS) $(AM_GOCFLAGS) $(LDFLAGS) -lgcc_s $(AM_LDFLAGS) -o $@
 cmdsrcdir = $(srcdir)/../libgo/go/cmd
 go_cmd_go_files = \
 	$(cmdsrcdir)/go/build.go \
diff -Nur gcc-5.4.0.orig/gotools/Makefile.in.orig gcc-5.4.0/gotools/Makefile.in.orig
--- gcc-5.4.0.orig/gotools/Makefile.in.orig	1970-01-01 01:00:00.000000000 +0100
+++ gcc-5.4.0/gotools/Makefile.in.orig	2015-03-24 20:50:31.000000000 +0100
@@ -0,0 +1,648 @@
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+# @configure_input@
+
+# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
+# 2003, 2004, 2005, 2006, 2007, 2008, 2009  Free Software Foundation,
+# Inc.
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# Makefile for gotools
+#   Copyright 2015 Free Software Foundation, Inc.
+#
+# This file is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; see the file COPYING3.  If not see
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+
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+	$(cmdsrcdir)/go/help.go \
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+	$(cmdsrcdir)/go/main.go \
+	$(cmdsrcdir)/go/pkg.go \
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+	$(cmdsrcdir)/go/signal_unix.go \
+	$(cmdsrcdir)/go/test.go \
+	$(cmdsrcdir)/go/testflag.go \
+	$(cmdsrcdir)/go/tool.go \
+	$(cmdsrcdir)/go/vcs.go \
+	$(cmdsrcdir)/go/version.go \
+	$(cmdsrcdir)/go/vet.go \
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+
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+	$(cmdsrcdir)/gofmt/gofmt.go \
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+	$(cmdsrcdir)/gofmt/simplify.go
+
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+	$(cmdsrcdir)/cgo/main.go \
+	$(cmdsrcdir)/cgo/out.go \
+	$(cmdsrcdir)/cgo/util.go
+
+GCCGO_INSTALL_NAME := $(shell echo gccgo|sed '$(program_transform_name)')
+GCC_INSTALL_NAME := $(shell echo gcc|sed '$(program_transform_name)')
+GXX_INSTALL_NAME := $(shell echo g++|sed '$(program_transform_name)')
+MOSTLYCLEANFILES = zdefaultcc.go s-zdefaultcc
+
+# For a native build we build the programs using the newly built libgo
+# and install them as regular programs.
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+	list='$(SOURCES) $(HEADERS)  $(LISP) $(TAGS_FILES)'; \
+	unique=`for i in $$list; do \
+	    if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+	  done | \
+	  $(AWK) '{ files[$$0] = 1; nonempty = 1; } \
+	      END { if (nonempty) { for (i in files) print i; }; }'`; \
+	shift; \
+	if test -z "$(ETAGS_ARGS)$$*$$unique"; then :; else \
+	  test -n "$$unique" || unique=$$empty_fix; \
+	  if test $$# -gt 0; then \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      "$$@" $$unique; \
+	  else \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      $$unique; \
+	  fi; \
+	fi
+ctags: CTAGS
+CTAGS:  $(HEADERS) $(SOURCES)  $(TAGS_DEPENDENCIES) \
+		$(TAGS_FILES) $(LISP)
+	list='$(SOURCES) $(HEADERS)  $(LISP) $(TAGS_FILES)'; \
+	unique=`for i in $$list; do \
+	    if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+	  done | \
+	  $(AWK) '{ files[$$0] = 1; nonempty = 1; } \
+	      END { if (nonempty) { for (i in files) print i; }; }'`; \
+	test -z "$(CTAGS_ARGS)$$unique" \
+	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
+	     $$unique
+
+GTAGS:
+	here=`$(am__cd) $(top_builddir) && pwd` \
+	  && $(am__cd) $(top_srcdir) \
+	  && gtags -i $(GTAGS_ARGS) "$$here"
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+check-am: all-am
+check: check-am
+all-am: Makefile $(PROGRAMS) $(MANS)
+installdirs:
+	for dir in "$(DESTDIR)$(bindir)" "$(DESTDIR)$(man1dir)"; do \
+	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+	done
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+	$(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	  install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	  `test -z '$(STRIP)' || \
+	    echo "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'"` install
+mostlyclean-generic:
+	-test -z "$(MOSTLYCLEANFILES)" || rm -f $(MOSTLYCLEANFILES)
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+@NATIVE_FALSE@uninstall-local:
+@NATIVE_FALSE@install-exec-local:
+clean: clean-am
+
+clean-am: clean-binPROGRAMS clean-generic clean-noinstPROGRAMS \
+	mostlyclean-am
+
+distclean: distclean-am
+	-rm -f $(am__CONFIG_DISTCLEAN_FILES)
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+	distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
+
+install-data-am: install-man
+
+install-dvi: install-dvi-am
+
+install-dvi-am:
+
+install-exec-am: install-binPROGRAMS install-exec-local
+
+install-html: install-html-am
+
+install-html-am:
+
+install-info: install-info-am
+
+install-info-am:
+
+install-man: install-man1
+
+install-pdf: install-pdf-am
+
+install-pdf-am:
+
+install-ps: install-ps-am
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+	-rm -f $(am__CONFIG_DISTCLEAN_FILES)
+	-rm -rf $(top_srcdir)/autom4te.cache
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am: uninstall-binPROGRAMS uninstall-local uninstall-man
+
+uninstall-man: uninstall-man1
+
+.MAKE: install-am install-strip
+
+.PHONY: CTAGS GTAGS all all-am am--refresh check check-am clean \
+	clean-binPROGRAMS clean-generic clean-noinstPROGRAMS ctags \
+	distclean distclean-compile distclean-generic distclean-tags \
+	dvi dvi-am html html-am info info-am install install-am \
+	install-binPROGRAMS install-data install-data-am install-dvi \
+	install-dvi-am install-exec install-exec-am install-exec-local \
+	install-html install-html-am install-info install-info-am \
+	install-man install-man1 install-pdf install-pdf-am install-ps \
+	install-ps-am install-strip installcheck installcheck-am \
+	installdirs maintainer-clean maintainer-clean-generic \
+	mostlyclean mostlyclean-compile mostlyclean-generic pdf pdf-am \
+	ps ps-am tags uninstall uninstall-am uninstall-binPROGRAMS \
+	uninstall-local uninstall-man uninstall-man1
+
+
+zdefaultcc.go: s-zdefaultcc; @true
+s-zdefaultcc: Makefile
+	echo 'package main' > zdefaultcc.go.tmp
+	echo 'const defaultGCCGO = "$(bindir)/$(GCCGO_INSTALL_NAME)"' >> zdefaultcc.go.tmp
+	echo 'const defaultCC = "$(bindir)/$(GCC_INSTALL_NAME)"' >> zdefaultcc.go.tmp
+	echo 'const defaultCXX = "$(bindir)/$(GXX_INSTALL_NAME)"' >> zdefaultcc.go.tmp
+	$(SHELL) $(srcdir)/../move-if-change zdefaultcc.go.tmp zdefaultcc.go
+	$(STAMP) $@ 
+
+@NATIVE_TRUE@go$(EXEEXT): $(go_cmd_go_files) zdefaultcc.go $(LIBGODEP)
+@NATIVE_TRUE@	$(GOLINK) $(go_cmd_go_files) zdefaultcc.go $(LIBS) $(NET_LIBS)
+@NATIVE_TRUE@gofmt$(EXEEXT): $(go_cmd_gofmt_files) $(LIBGODEP)
+@NATIVE_TRUE@	$(GOLINK) $(go_cmd_gofmt_files) $(LIBS) $(NET_LIBS)
+@NATIVE_TRUE@cgo$(EXEEXT): $(go_cmd_cgo_files) zdefaultcc.go $(LIBGODEP)
+@NATIVE_TRUE@	$(GOLINK) $(go_cmd_cgo_files) zdefaultcc.go $(LIBS) $(NET_LIBS)
+
+@NATIVE_TRUE@install-exec-local: cgo$(EXEEXT)
+@NATIVE_TRUE@	$(MKDIR_P) $(DESTDIR)$(libexecsubdir)
+@NATIVE_TRUE@	rm -f $(DESTDIR)$(libexecsubdir)/cgo$(exeext)
+@NATIVE_TRUE@	$(INSTALL_PROGRAM) cgo$(exeext) $(DESTDIR)$(libexecsubdir)/cgo$(exeext)
+
+@NATIVE_TRUE@uninstall-local:
+@NATIVE_TRUE@	rm -f $(DESTDIR)$(libexecsubdir)/cgo$(exeext)
+
+# For a non-native build we have to build the programs using a
+# previously built host (or build -> host) Go compiler.  We should
+# only do this if such a compiler is available.  We also need to get
+# the right values for GOARCH and GOOS in the default build context in
+# the go/build package.  Figure this out later.
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
