Error on crosscompile (win to lin)

[prospero78]

What version of Go are you using (go version)?

$ go version
1.13

Does this issue reproduce with the latest release?

Yes

What operating system and processor architecture are you using (go env)?

go env Output

$ go env
set GO111MODULE=
set GOARCH=amd64
set GOBIN=d:\coding\golang\_home\bin
set GOCACHE=C:\Users\User\AppData\Local\go-build
set GOENV=C:\Users\User\AppData\Roaming\go\env
set GOEXE=.exe
set GOFLAGS=
set GOHOSTARCH=amd64
set GOHOSTOS=windows
set GONOPROXY=
set GONOSUMDB=
set GOOS=windows
set GOPATH=d:\coding\golang\_home
set GOPRIVATE=
set GOPROXY=https://proxy.golang.org,direct
set GOROOT=D:\coding\golang
set GOSUMDB=sum.golang.org
set GOTMPDIR=
set GOTOOLDIR=D:\coding\golang\pkg\tool\windows_amd64
set GCCGO=gccgo
set AR=ar
set CC=gcc
set CXX=g++
set CGO_ENABLED=1
set GOMOD=
set CGO_CFLAGS=-g -O2
set CGO_CPPFLAGS=
set CGO_CXXFLAGS=-g -O2
set CGO_FFLAGS=-g -O2
set CGO_LDFLAGS=-g -O2
set PKG_CONFIG=pkg-config
set GOGCCFLAGS=-m64 -mthreads -fmessage-length=0 -fdebug-prefix-map=d:\temp\go-build369796638=/tmp/go-build -gno-record-gcc-switches

What did you do?

What did you expect to see?

go build main.go

runtime/cgo

gcc_linux_amd64.c: In function '_cgo_sys_thread_start':
gcc_linux_amd64.c:61:2: error: unknown type name 'sigset_t'; did you mean '_sigset_t'?
sigset_t ign, oset;
^~~~~~~~
_sigset_t
gcc_linux_amd64.c:66:2: error: implicit declaration of function 'sigfillset' [-Werror=implicit-function-declaration]
sigfillset(&ign);
^~~~~~~~~~
gcc_linux_amd64.c:61:16: error: unused variable 'oset' [-Werror=unused-variable]
sigset_t ign, oset;
^~~~
cc1.exe: all warnings being treated as errors

What did you see instead?

Its raise on cross compile win -> lin. Please!! Its not good!!
for compile:

set GOOS=linux

[cherrymui]

You need to set CC to a C cross compiler.

[mdempsky]

Please see https://github.com/golang/go/wiki/Questions for where to ask questions. Thanks.