Index: gcc-8-8-20171108/src/libgo/configure.ac
===================================================================
--- gcc-8-8-20171108.orig/src/libgo/configure.ac
+++ gcc-8-8-20171108/src/libgo/configure.ac
@@ -154,7 +154,7 @@ AC_SUBST(go_include)
 # All known GOOS values.  This is the union of all operating systems
 # supported by the gofrontend and all operating systems supported by
 # the gc toolchain.
-ALLGOOS="aix android darwin dragonfly freebsd irix linux netbsd openbsd plan9 rtems solaris windows"
+ALLGOOS="aix android darwin dragonfly freebsd irix gnu linux netbsd openbsd plan9 rtems solaris windows"
 
 is_darwin=no
 is_freebsd=no
@@ -166,6 +166,7 @@ is_dragonfly=no
 is_rtems=no
 is_solaris=no
 is_aix=no
+is_gnu=no
 GOOS=unknown
 case ${host} in
   *-*-darwin*)   is_darwin=yes;  GOOS=darwin ;;
@@ -178,6 +179,7 @@ case ${host} in
   *-*-rtems*)    is_rtems=yes;   GOOS=rtems ;;
   *-*-solaris2*) is_solaris=yes; GOOS=solaris ;;
   *-*-aix*)      is_aix=yes;     GOOS=aix ;;
+  *-*-gnu*)      is_gnu=yes;     GOOS=gnu ;;
 esac
 AM_CONDITIONAL(LIBGO_IS_DARWIN, test $is_darwin = yes)
 AM_CONDITIONAL(LIBGO_IS_FREEBSD, test $is_freebsd = yes)
@@ -189,6 +191,7 @@ AM_CONDITIONAL(LIBGO_IS_DRAGONFLY, test
 AM_CONDITIONAL(LIBGO_IS_RTEMS, test $is_rtems = yes)
 AM_CONDITIONAL(LIBGO_IS_SOLARIS, test $is_solaris = yes)
 AM_CONDITIONAL(LIBGO_IS_AIX, test $is_aix = yes)
+AM_CONDITIONAL(LIBGO_IS_GNU, test $is_gnu = yes)
 AM_CONDITIONAL(LIBGO_IS_BSD, test $is_darwin = yes -o $is_dragonfly = yes -o $is_freebsd = yes -o $is_netbsd = yes -o $is_openbsd = yes)
 AC_SUBST(GOOS)
 AC_SUBST(ALLGOOS)
@@ -853,6 +856,13 @@ main ()
 CFLAGS="$CFLAGS_hold"
 LIBS="$LIBS_hold"
 ])
+case ${host} in
+  *-*-gnu*)
+  LIBS="$LIBS -lpthread"
+  AC_SUBST(LIBS)
+  ;;
+esac
+
 dnl overwrite for the mips* 64bit multilibs, fails on some buildds
 if test "$libgo_cv_lib_setcontext_clobbers_tls" = "yes"; then
   case "$target" in
Index: gcc-8-8-20171108/src/libgo/Makefile.am
===================================================================
--- gcc-8-8-20171108.orig/src/libgo/Makefile.am
+++ gcc-8-8-20171108/src/libgo/Makefile.am
@@ -431,10 +431,14 @@ else
 if LIBGO_IS_AIX
 runtime_getncpu_file = runtime/getncpu-aix.c
 else
+if LIBGO_IS_GNU
+runtime_getncpu_file = runtime/getncpu-gnu.c
+else
 runtime_getncpu_file = runtime/getncpu-none.c
 endif
 endif
 endif
+endif
 endif
 endif
 endif
Index: gcc-8-8-20171108/src/libgo/Makefile.in
===================================================================
--- gcc-8-8-20171108.orig/src/libgo/Makefile.in
+++ gcc-8-8-20171108/src/libgo/Makefile.in
@@ -187,7 +187,8 @@ am__DEPENDENCIES_4 = $(am__DEPENDENCIES_
 	$(am__DEPENDENCIES_3) $(am__DEPENDENCIES_3)
 libgo_llgo_la_DEPENDENCIES = $(am__DEPENDENCIES_4)
 @LIBGO_IS_RTEMS_TRUE@am__objects_1 = rtems-task-variable-add.lo
-@LIBGO_IS_AIX_FALSE@@LIBGO_IS_DARWIN_FALSE@@LIBGO_IS_FREEBSD_FALSE@@LIBGO_IS_IRIX_FALSE@@LIBGO_IS_LINUX_FALSE@@LIBGO_IS_NETBSD_FALSE@@LIBGO_IS_SOLARIS_FALSE@am__objects_2 = getncpu-none.lo
+@LIBGO_IS_AIX_FALSE@@LIBGO_IS_DARWIN_FALSE@@LIBGO_IS_FREEBSD_FALSE@@LIBGO_IS_GNU_FALSE@@LIBGO_IS_IRIX_FALSE@@LIBGO_IS_LINUX_FALSE@@LIBGO_IS_NETBSD_FALSE@@LIBGO_IS_SOLARIS_FALSE@am__objects_2 = getncpu-none.lo
+@LIBGO_IS_AIX_FALSE@@LIBGO_IS_DARWIN_FALSE@@LIBGO_IS_FREEBSD_FALSE@@LIBGO_IS_GNU_TRUE@@LIBGO_IS_IRIX_FALSE@@LIBGO_IS_LINUX_FALSE@@LIBGO_IS_NETBSD_FALSE@@LIBGO_IS_SOLARIS_FALSE@am__objects_2 = getncpu-gnu.lo
 @LIBGO_IS_AIX_TRUE@@LIBGO_IS_DARWIN_FALSE@@LIBGO_IS_FREEBSD_FALSE@@LIBGO_IS_IRIX_FALSE@@LIBGO_IS_LINUX_FALSE@@LIBGO_IS_NETBSD_FALSE@@LIBGO_IS_SOLARIS_FALSE@am__objects_2 = getncpu-aix.lo
 @LIBGO_IS_DARWIN_FALSE@@LIBGO_IS_FREEBSD_FALSE@@LIBGO_IS_IRIX_FALSE@@LIBGO_IS_LINUX_FALSE@@LIBGO_IS_NETBSD_TRUE@@LIBGO_IS_SOLARIS_FALSE@am__objects_2 = getncpu-bsd.lo
 @LIBGO_IS_DARWIN_FALSE@@LIBGO_IS_FREEBSD_TRUE@@LIBGO_IS_IRIX_FALSE@@LIBGO_IS_LINUX_FALSE@@LIBGO_IS_SOLARIS_FALSE@am__objects_2 = getncpu-bsd.lo
@@ -234,10 +235,10 @@ LINK = $(LIBTOOL) --tag=CC $(AM_LIBTOOLF
 SOURCES = $(libgobegin_llgo_a_SOURCES) $(libgobegin_a_SOURCES) \
 	$(libgolibbegin_a_SOURCES) $(libgotool_a_SOURCES) \
 	$(libgo_llgo_la_SOURCES) $(libgo_la_SOURCES)
-MULTISRCTOP = 
-MULTIBUILDTOP = 
-MULTIDIRS = 
-MULTISUBDIR = 
+MULTISRCTOP =
+MULTIBUILDTOP =
+MULTIDIRS =
+MULTISUBDIR =
 MULTIDO = true
 MULTICLEAN = true
 RECURSIVE_TARGETS = all-recursive check-recursive dvi-recursive \
@@ -469,7 +470,7 @@ AM_LDFLAGS = $(am__append_1) $(am__appen
 @LIBGO_IS_AIX_TRUE@EXTRA_libgo_la_DEPENDENCIES = libgo.imp
 
 # Multilib support.
-MAKEOVERRIDES = 
+MAKEOVERRIDES =
 
 # Work around what appears to be a GNU make  handling MAKEFLAGS
 # values defined in terms of make variables, as is the case for CC and
@@ -773,9 +774,10 @@ toolexeclibgounicode_DATA = \
 # Force them to be built.
 noinst_DATA = internal/testenv.gox net/internal/socktest.gox \
 	zstdpkglist.go zdefaultcc.go
-@LIBGO_IS_RTEMS_FALSE@rtems_task_variable_add_file = 
+@LIBGO_IS_RTEMS_FALSE@rtems_task_variable_add_file =
 @LIBGO_IS_RTEMS_TRUE@rtems_task_variable_add_file = runtime/rtems-task-variable-add.c
-@LIBGO_IS_AIX_FALSE@@LIBGO_IS_DARWIN_FALSE@@LIBGO_IS_FREEBSD_FALSE@@LIBGO_IS_IRIX_FALSE@@LIBGO_IS_LINUX_FALSE@@LIBGO_IS_NETBSD_FALSE@@LIBGO_IS_SOLARIS_FALSE@runtime_getncpu_file = runtime/getncpu-none.c
+@LIBGO_IS_AIX_FALSE@@LIBGO_IS_DARWIN_FALSE@@LIBGO_IS_FREEBSD_FALSE@@LIBGO_IS_GNU_FALSE@@LIBGO_IS_IRIX_FALSE@@LIBGO_IS_LINUX_FALSE@@LIBGO_IS_NETBSD_FALSE@@LIBGO_IS_SOLARIS_FALSE@runtime_getncpu_file = runtime/getncpu-none.c
+@LIBGO_IS_AIX_FALSE@@LIBGO_IS_DARWIN_FALSE@@LIBGO_IS_FREEBSD_FALSE@@LIBGO_IS_GNU_TRUE@@LIBGO_IS_IRIX_FALSE@@LIBGO_IS_LINUX_FALSE@@LIBGO_IS_NETBSD_FALSE@@LIBGO_IS_SOLARIS_FALSE@runtime_getncpu_file = runtime/getncpu-gnu.c
 @LIBGO_IS_AIX_TRUE@@LIBGO_IS_DARWIN_FALSE@@LIBGO_IS_FREEBSD_FALSE@@LIBGO_IS_IRIX_FALSE@@LIBGO_IS_LINUX_FALSE@@LIBGO_IS_NETBSD_FALSE@@LIBGO_IS_SOLARIS_FALSE@runtime_getncpu_file = runtime/getncpu-aix.c
 @LIBGO_IS_DARWIN_FALSE@@LIBGO_IS_FREEBSD_FALSE@@LIBGO_IS_IRIX_FALSE@@LIBGO_IS_LINUX_FALSE@@LIBGO_IS_NETBSD_TRUE@@LIBGO_IS_SOLARIS_FALSE@runtime_getncpu_file = runtime/getncpu-bsd.c
 @LIBGO_IS_DARWIN_FALSE@@LIBGO_IS_FREEBSD_TRUE@@LIBGO_IS_IRIX_FALSE@@LIBGO_IS_LINUX_FALSE@@LIBGO_IS_SOLARIS_FALSE@runtime_getncpu_file = runtime/getncpu-bsd.c
@@ -825,13 +827,13 @@ runtime_files = \
 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)')
-@LIBGO_IS_LINUX_FALSE@syscall_epoll_file = 
+@LIBGO_IS_LINUX_FALSE@syscall_epoll_file =
 @LIBGO_IS_LINUX_TRUE@syscall_epoll_file = epoll.go
 SYSINFO_FLAGS = \
 	$(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) \
 	$(CPPFLAGS) $(OSCFLAGS) -O
 
-@LIBGO_IS_LINUX_FALSE@syscall_lib_clone_lo = 
+@LIBGO_IS_LINUX_FALSE@syscall_lib_clone_lo =
 @LIBGO_IS_LINUX_TRUE@syscall_lib_clone_lo = syscall/clone_linux.lo
 PACKAGES = \
 	archive/tar \
@@ -1078,7 +1080,7 @@ GOTOOL_PACKAGES = \
 	cmd/internal/browser \
 	cmd/internal/objabi
 
-libgotool_a_SOURCES = 
+libgotool_a_SOURCES =
 libgotool_a_DEPENDENCIES = $(addsuffix .lo,$(GOTOOL_PACKAGES))
 libgotool_a_LIBADD = $(addsuffix .o,$(GOTOOL_PACKAGES))
 LTLDFLAGS = $(shell $(SHELL) $(top_srcdir)/../libtool-ldflags $(LDFLAGS))
@@ -1121,7 +1123,7 @@ BUILDGOX = \
 	$(OBJCOPY) -j .go_export $$f $@.tmp; \
 	$(SHELL) $(srcdir)/mvifdiff.sh $@.tmp `echo $@ | sed -e 's/s-gox/gox/'`
 
-GOTESTFLAGS = 
+GOTESTFLAGS =
 GOBENCH =
 
 # Check a package.
@@ -1207,7 +1209,7 @@ runtime_internal_atomic_lo_GOCFLAGS = -f
 runtime_internal_atomic_lo_check_GOCFLAGS = -fgo-compiling-runtime
 runtime_internal_sys_lo_GOCFLAGS = -fgo-compiling-runtime
 runtime_internal_sys_lo_check_GOCFLAGS = -fgo-compiling-runtime
-@USE_LIBFFI_FALSE@matchargs_runtime = 
+@USE_LIBFFI_FALSE@matchargs_runtime =
 
 # If libffi is supported (the normal case) use the ffi build tag for
 # the runtime package.
@@ -1224,12 +1226,12 @@ extra_check_libs_cmd_go_internal_generat
 extra_check_libs_cmd_go_internal_get = $(abs_builddir)/libgotool.a
 extra_check_libs_cmd_go_internal_load = $(abs_builddir)/libgotool.a
 extra_check_libs_cmd_go_internal_work = $(abs_builddir)/libgotool.a
-@HAVE_STAT_TIMESPEC_FALSE@@LIBGO_IS_SOLARIS_TRUE@matchargs_os = 
+@HAVE_STAT_TIMESPEC_FALSE@@LIBGO_IS_SOLARIS_TRUE@matchargs_os =
 
 # Solaris 12 changed the type of fields in struct stat.
 # Use a build tag, based on a configure check, to cope.
 @HAVE_STAT_TIMESPEC_TRUE@@LIBGO_IS_SOLARIS_TRUE@matchargs_os = --tag=solaristag
-@LIBGO_IS_SOLARIS_FALSE@matchargs_os = 
+@LIBGO_IS_SOLARIS_FALSE@matchargs_os =
 @LIBGO_IS_BSD_TRUE@golang_org_x_net_route_lo = \
 @LIBGO_IS_BSD_TRUE@	golang_org/x/net/route.lo
 
@@ -1411,6 +1413,7 @@ MOSTLYCLEANFILES = \
 CLEANFILES = *.go *.c s-* libgo.sum libgo.log runtime.inc \
 	*.dep */*.dep */*/*.dep */*/*/*.dep */*/*.dep */*/*/*/*.dep \
 	*/*/*/*/*/*.dep
+
 all: config.h
 	$(MAKE) $(AM_MAKEFLAGS) all-recursive
 
@@ -1458,7 +1461,7 @@ config.h: stamp-h1
 stamp-h1: $(srcdir)/config.h.in $(top_builddir)/config.status
 	@rm -f stamp-h1
 	cd $(top_builddir) && $(SHELL) ./config.status config.h
-$(srcdir)/config.h.in: @MAINTAINER_MODE_TRUE@ $(am__configure_deps) 
+$(srcdir)/config.h.in: @MAINTAINER_MODE_TRUE@ $(am__configure_deps)
 	($(am__cd) $(top_srcdir) && $(AUTOHEADER))
 	rm -f stamp-h1
 	touch $@
@@ -1499,19 +1502,19 @@ uninstall-toolexeclibLIBRARIES:
 
 clean-toolexeclibLIBRARIES:
 	-test -z "$(toolexeclib_LIBRARIES)" || rm -f $(toolexeclib_LIBRARIES)
-libgobegin-llgo.a: $(libgobegin_llgo_a_OBJECTS) $(libgobegin_llgo_a_DEPENDENCIES) $(EXTRA_libgobegin_llgo_a_DEPENDENCIES) 
+libgobegin-llgo.a: $(libgobegin_llgo_a_OBJECTS) $(libgobegin_llgo_a_DEPENDENCIES) $(EXTRA_libgobegin_llgo_a_DEPENDENCIES)
 	-rm -f libgobegin-llgo.a
 	$(libgobegin_llgo_a_AR) libgobegin-llgo.a $(libgobegin_llgo_a_OBJECTS) $(libgobegin_llgo_a_LIBADD)
 	$(RANLIB) libgobegin-llgo.a
-libgobegin.a: $(libgobegin_a_OBJECTS) $(libgobegin_a_DEPENDENCIES) $(EXTRA_libgobegin_a_DEPENDENCIES) 
+libgobegin.a: $(libgobegin_a_OBJECTS) $(libgobegin_a_DEPENDENCIES) $(EXTRA_libgobegin_a_DEPENDENCIES)
 	-rm -f libgobegin.a
 	$(libgobegin_a_AR) libgobegin.a $(libgobegin_a_OBJECTS) $(libgobegin_a_LIBADD)
 	$(RANLIB) libgobegin.a
-libgolibbegin.a: $(libgolibbegin_a_OBJECTS) $(libgolibbegin_a_DEPENDENCIES) $(EXTRA_libgolibbegin_a_DEPENDENCIES) 
+libgolibbegin.a: $(libgolibbegin_a_OBJECTS) $(libgolibbegin_a_DEPENDENCIES) $(EXTRA_libgolibbegin_a_DEPENDENCIES)
 	-rm -f libgolibbegin.a
 	$(libgolibbegin_a_AR) libgolibbegin.a $(libgolibbegin_a_OBJECTS) $(libgolibbegin_a_LIBADD)
 	$(RANLIB) libgolibbegin.a
-libgotool.a: $(libgotool_a_OBJECTS) $(libgotool_a_DEPENDENCIES) $(EXTRA_libgotool_a_DEPENDENCIES) 
+libgotool.a: $(libgotool_a_OBJECTS) $(libgotool_a_DEPENDENCIES) $(EXTRA_libgotool_a_DEPENDENCIES)
 	-rm -f libgotool.a
 	$(libgotool_a_AR) libgotool.a $(libgotool_a_OBJECTS) $(libgotool_a_LIBADD)
 	$(RANLIB) libgotool.a
@@ -1547,9 +1550,9 @@ clean-toolexeclibLTLIBRARIES:
 	  echo "rm -f \"$${dir}/so_locations\""; \
 	  rm -f "$${dir}/so_locations"; \
 	done
-libgo-llgo.la: $(libgo_llgo_la_OBJECTS) $(libgo_llgo_la_DEPENDENCIES) $(EXTRA_libgo_llgo_la_DEPENDENCIES) 
+libgo-llgo.la: $(libgo_llgo_la_OBJECTS) $(libgo_llgo_la_DEPENDENCIES) $(EXTRA_libgo_llgo_la_DEPENDENCIES)
 	$(libgo_llgo_la_LINK) $(am_libgo_llgo_la_rpath) $(libgo_llgo_la_OBJECTS) $(libgo_llgo_la_LIBADD) $(LIBS)
-libgo.la: $(libgo_la_OBJECTS) $(libgo_la_DEPENDENCIES) $(EXTRA_libgo_la_DEPENDENCIES) 
+libgo.la: $(libgo_la_OBJECTS) $(libgo_la_DEPENDENCIES) $(EXTRA_libgo_la_DEPENDENCIES)
 	$(libgo_la_LINK) $(am_libgo_la_rpath) $(libgo_la_OBJECTS) $(libgo_la_LIBADD) $(LIBS)
 
 mostlyclean-compile:
@@ -1562,6 +1565,7 @@ distclean-compile:
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/env_posix.Plo@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/getncpu-aix.Plo@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/getncpu-bsd.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/getncpu-gnu.Plo@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/getncpu-irix.Plo@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/getncpu-linux.Plo@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/getncpu-none.Plo@am__quote@
@@ -1926,6 +1930,13 @@ getncpu-none.lo: runtime/getncpu-none.c
 @AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
 @am__fastdepCC_FALSE@	$(LIBTOOL)  --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o getncpu-none.lo `test -f 'runtime/getncpu-none.c' || echo '$(srcdir)/'`runtime/getncpu-none.c
 
+getncpu-gnu.lo: runtime/getncpu-gnu.c
+@am__fastdepCC_TRUE@	$(LIBTOOL)  --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT getncpu-gnu.lo -MD -MP -MF $(DEPDIR)/getncpu-gnu.Tpo -c -o getncpu-gnu.lo `test -f 'runtime/getncpu-gnu.c' || echo '$(srcdir)/'`runtime/getncpu-gnu.c
+@am__fastdepCC_TRUE@	$(am__mv) $(DEPDIR)/getncpu-gnu.Tpo $(DEPDIR)/getncpu-gnu.Plo
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='runtime/getncpu-gnu.c' object='getncpu-gnu.lo' libtool=yes @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCC_FALSE@	$(LIBTOOL)  --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o getncpu-gnu.lo `test -f 'runtime/getncpu-gnu.c' || echo '$(srcdir)/'`runtime/getncpu-gnu.c
+
 getncpu-aix.lo: runtime/getncpu-aix.c
 @am__fastdepCC_TRUE@	$(LIBTOOL)  --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT getncpu-aix.lo -MD -MP -MF $(DEPDIR)/getncpu-aix.Tpo -c -o getncpu-aix.lo `test -f 'runtime/getncpu-aix.c' || echo '$(srcdir)/'`runtime/getncpu-aix.c
 @am__fastdepCC_TRUE@	$(am__mv) $(DEPDIR)/getncpu-aix.Tpo $(DEPDIR)/getncpu-aix.Plo
@@ -3161,7 +3172,7 @@ s-zdefaultcc: Makefile
 	echo 'const DefaultCXX = "$(GXX_INSTALL_NAME)"' >> zdefaultcc.go.tmp
 	echo 'const DefaultPkgConfig = "pkg-config"' >> zdefaultcc.go.tmp
 	$(SHELL) $(srcdir)/../move-if-change zdefaultcc.go.tmp zdefaultcc.go
-	$(STAMP) $@ 
+	$(STAMP) $@
 
 # _Complex_lock and _Reader_lock are Go translations of some AIX system
 # types and should not be exported back to C
Index: gcc-8-8-20171108/src/libgo/match.sh
===================================================================
--- gcc-8-8-20171108.orig/src/libgo/match.sh
+++ gcc-8-8-20171108/src/libgo/match.sh
@@ -113,7 +113,7 @@ for f in $gofiles; do
 	"") ;;
 	$goarch) ;;
 	$goos) ;;
-	aix | android | darwin | dragonfly | freebsd | linux | nacl | netbsd | openbsd | plan9 | solaris | windows)
+	aix | android | darwin | dragonfly | freebsd | gnu | linux | nacl | netbsd | openbsd | plan9 | solaris | windows)
 	    tag1=nonmatchingtag
 	    ;;
 	386 | amd64 | amd64p32 | arm | armbe | arm64 | arm64be | alpha | ia64 | m68k | ppc64 | ppc64le | mips | mipsle | mips64 | mips64le | mips64p32 | mips64p32le | ppc | s390 | s390x | sparc | sparc64)
@@ -125,7 +125,7 @@ for f in $gofiles; do
 	"") ;;
 	$goarch) ;;
 	$goos) ;;
-	aix | android | darwin | dragonfly | freebsd | linux | nacl | netbsd | openbsd | plan9 | solaris | windows)
+	aix | android | darwin | dragonfly | freebsd | gnu | linux | nacl | netbsd | openbsd | plan9 | solaris | windows)
 	    tag2=nonmatchingtag
 	    ;;
 	386 | amd64 | amd64p32 | arm | armbe | arm64 | arm64be | alpha | ia64 | m68k | ppc64 | ppc64le | mips | mipsle | mips64 | mips64le | mips64p32 | mips64p32le | ppc | s390 | s390x | sparc | sparc64)
Index: gcc-8-8-20171108/src/libgo/mksigtab.sh
===================================================================
--- gcc-8-8-20171108.orig/src/libgo/mksigtab.sh
+++ gcc-8-8-20171108/src/libgo/mksigtab.sh
@@ -43,7 +43,13 @@ addsig _SIGINT     '{_SigNotify + _SigKi
 addsig _SIGQUIT    '{_SigNotify + _SigThrow, "SIGQUIT: quit"}'
 addsig _SIGILL     '{_SigThrow + _SigUnblock, "SIGILL: illegal instruction"}'
 addsig _SIGTRAP    '{_SigThrow + _SigUnblock, "SIGTRAP: trace trap"}'
+# Special treatment of SIGABRT for GNU/Hurd
+# /usr/include/i386-gnu/bits/signum.h: #define SIGABRT SIGIOT
+if egrep 'define SIGABRT SIGIOT' gen-sysinfo.go > /dev/null 2>&1; then
+addsig _SIGIOT     '{_SigNotify + _SigThrow, "SIGIOT: abort"}'
+else
 addsig _SIGABRT    '{_SigNotify + _SigThrow, "SIGABRT: abort"}'
+fi
 addsig _SIGBUS     '{_SigPanic + _SigUnblock, "SIGBUS: bus error"}'
 addsig _SIGFPE     '{_SigPanic + _SigUnblock, "SIGFPE: floating-point exception"}'
 addsig _SIGKILL    '{0, "SIGKILL: kill"}'
@@ -91,6 +97,7 @@ checksig _SIGCANCEL  '{_SigSetStack + _S
 checksig _SIGXRES    '{_SigNotify, "SIGXRES: resource control exceeded"}'
 checksig _SIGJVM1    '{_SigNotify, "SIGJVM1: reserved signal for Java Virtual Machine"}'
 checksig _SIGJVM2    '{_SigNotify, "SIGJVM2: reserved signal for Java Virtual Machine"}'
+checksig _SIGLOST '   {_SigNotify, "SIGLOST: resource lost (Sun); server died (GNU)"}'
 
 # Special handling of signals 32 and 33 on GNU/Linux systems,
 # because they are special to glibc.
Index: gcc-8-8-20171108/src/libgo/mksysinfo.sh
===================================================================
--- gcc-8-8-20171108.orig/src/libgo/mksysinfo.sh
+++ gcc-8-8-20171108/src/libgo/mksysinfo.sh
@@ -57,6 +57,13 @@ grep '^type _mld_hdr_t ' gen-sysinfo.go
   egrep '#define E[A-Z0-9_]+ ' errno.i | \
   sed -e 's/^#define \(E[A-Z0-9_]*\) .*$/const \1 = Errno(_\1)/' >> ${OUT}
 
+# Special treatment of EWOULDBLOCK for GNU/Hurd
+# /usr/include/bits/errno.h: #define EWOULDBLOCK EAGAIN
+if egrep 'define EWOULDBLOCK EAGAIN' gen-sysinfo.go > /dev/null 2>&1; then
+  egrep '^const EWOULDBLOCK = Errno(_EWOULDBLOCK)' ${OUT} | \
+    sed -i -e 's/_EWOULDBLOCK/_EAGAIN/' ${OUT}
+fi
+
 # The O_xxx flags.
 egrep '^const _(O|F|FD)_' gen-sysinfo.go | \
   sed -e 's/^\(const \)_\([^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
@@ -124,6 +131,11 @@ grep '^const _SYS_' gen-sysinfo.go | \
     echo "const $sup = _$sys" >> ${OUT}
   done
 
+# Special treatment of SYS_IOCTL for GNU/Hurd
+if ! grep '^const SYS_IOCTL' ${OUT} > /dev/null 2>&1; then
+  echo "const SYS_IOCTL = 0" >> ${OUT}
+fi
+
 # The GNU/Linux support wants to use SYS_GETDENTS64 if available.
 if ! grep '^const SYS_GETDENTS ' ${OUT} >/dev/null 2>&1; then
   echo "const SYS_GETDENTS = 0" >> ${OUT}
@@ -445,6 +457,11 @@ grep '^type _tms ' gen-sysinfo.go | \
 
 # The stat type.
 # Prefer largefile variant if available.
+# Special treatment of st_dev for GNU/Hurd
+# /usr/include/i386-gnu/bits/stat.h: #define st_dev st_fsid
+if grep 'define st_dev st_fsid' gen-sysinfo.go > /dev/null 2>&1; then
+  sed -i -e 's/; st_fsid/; st_dev/' gen-sysinfo.go
+fi
 stat=`grep '^type _stat64 ' gen-sysinfo.go || true`
 if test "$stat" != ""; then
   grep '^type _stat64 ' gen-sysinfo.go