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cmd/compile: gcc_linux_amd64.c:63:2: error: unknown type name 'sigset_t' #56225

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kityun opened this issue Oct 14, 2022 · 3 comments
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cmd/compile: gcc_linux_amd64.c:63:2: error: unknown type name 'sigset_t' #56225

kityun opened this issue Oct 14, 2022 · 3 comments
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compiler/runtime Issues related to the Go compiler and/or runtime. FrozenDueToAge NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one.

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@kityun
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kityun commented Oct 14, 2022

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

$ go version 
go version go1.19.2 windows/amd64

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=auto

set GOARCH=amd64

set GOBIN=

set GOCACHE=C:\Users\xxxx\AppData\Local\go-build

set GOENV=C:\Users\xxxx\AppData\Roaming\go\env

set GOEXE=

set GOEXPERIMENT=

set GOFLAGS=

set GOHOSTARCH=amd64

set GOHOSTOS=windows

set GOINSECURE=

set GOMODCACHE=D:\xxxxx\pkg\mod

set GONOPROXY=

set GONOSUMDB=

set GOOS=linux

set GOPATH=D:\cxxxxx;C:\Go

set GOPRIVATE=

set GOPROXY=https://proxy.golang.org,direct

set GOROOT=C:\Go

set GOSUMDB=sum.golang.org

set GOTMPDIR=

set GOTOOLDIR=C:\Go\pkg\tool\windows_amd64

set GOVCS=

set GOVERSION=go1.19.2

set GCCGO=gccgo

set GOAMD64=v1

set AR=ar

set CC=x86_64-w64-mingw32-gcc

set CXX=x86_64-w64-mingw32-g++

set CGO_ENABLED=1

set GOMOD=

set GOWORK=

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=-fPIC -m64 -pthread -Wl,--no-gc-sections -fmessage-length=0 -fdebug-prefix-map=C:\Users\xxxx\AppData\Local\Temp\go-build4031921043=/tmp/go-build -gno-record-gcc-switches

What did you do?

go build main.go

What did you expect to see?

linux Runnable file

What did you see instead?

runtime/cgo

gcc_linux_amd64.c: In function '_cgo_sys_thread_start':
gcc_linux_amd64.c:63:2: error: unknown type name 'sigset_t'; did you mean '_sigset_t'?
sigset_t ign, oset;
^~~~~~~~
_sigset_t
gcc_linux_amd64.c:68:2: error: implicit declaration of function 'sigfillset' [-Werror=implicit-function-declaration]
sigfillset(&ign);
^~~~~~~~~~
gcc_linux_amd64.c:63:16: error: unused variable 'oset' [-Werror=unused-variable]
sigset_t ign, oset;
^~~~
cc1.exe: all warnings being treated as errors
@kityun kityun changed the title affected/package: gcc_linux_amd64.c:63:2: error: unknown type name 'sigset_t' cmd/compile: gcc_linux_amd64.c:63:2: error: unknown type name 'sigset_t' Oct 14, 2022
@gopherbot gopherbot added the compiler/runtime Issues related to the Go compiler and/or runtime. label Oct 14, 2022
@joedian joedian added the NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one. label Oct 14, 2022
@ianlancetaylor
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You have CC set to a Windows cross-compiler, but GOOS is linux. That can't work. The CC needs to generate files that run on the GOOS.

@ianlancetaylor ianlancetaylor closed this as not planned Won't fix, can't repro, duplicate, stale Oct 14, 2022
@zzrrxx
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zzrrxx commented Oct 27, 2022

You have CC set to a Windows cross-compiler, but GOOS is linux. That can't work. The CC needs to generate files that run on the GOOS.

Does that means if I want to use CGo, I have to build the source code on a Linux machine, cross-compile won't work?

@ianlancetaylor
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You have to either build the code on a Linux machine, or you have to set CC to a C cross-compiler that generates code that runs on Linux.

@golang golang locked and limited conversation to collaborators Oct 27, 2023
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compiler/runtime Issues related to the Go compiler and/or runtime. FrozenDueToAge NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one.
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