Support for //build +windows, linux and so on

[h3cksamrat]

What version of Garble and Go are you using?

$ garble version
mvdan.cc/garble v0.12.1

Build settings:
      -buildmode exe
       -compiler gc
  DefaultGODEBUG httplaxcontentlength=1,httpmuxgo121=1,tls10server=1,tlsrsakex=1,tlsunsafeekm=1
     CGO_ENABLED 1
          GOARCH amd64
            GOOS windows
         GOAMD64 v1

$ go version
go version go1.22.0 windows/amd64

What environment are you running Garble on?

go env Output

$ go env
set GO111MODULE=
set GOARCH=amd64
set GOBIN=
set GOCACHE=C:\Users\user\AppData\Local\go-build
set GOENV=C:\Users\user\AppData\Roaming\go\env
set GOEXE=.exe
set GOEXPERIMENT=
set GOFLAGS=
set GOHOSTARCH=amd64
set GOHOSTOS=windows
set GOINSECURE=
set GOMODCACHE=C:\Users\user\go\pkg\mod
set GONOPROXY=
set GONOSUMDB=
set GOOS=windows
set GOPATH=C:\Users\user\go
set GOPRIVATE=
set GOPROXY=https://proxy.golang.org,direct
set GOROOT=C:\Program Files\Go
set GOSUMDB=sum.golang.org
set GOTMPDIR=
set GOTOOLCHAIN=auto
set GOTOOLDIR=C:\Program Files\Go\pkg\tool\windows_amd64
set GOVCS=
set GOVERSION=go1.22.0
set GCCGO=gccgo
set GOAMD64=v1
set AR=ar
set CC=gcc
set CXX=g++
set CGO_ENABLED=1
set GOMOD=D:\go-client\go.mod
set GOWORK=
set CGO_CFLAGS=-O2 -g
set CGO_CPPFLAGS=
set CGO_CXXFLAGS=-O2 -g
set CGO_FFLAGS=-O2 -g
set CGO_LDFLAGS=-O2 -g
set PKG_CONFIG=pkg-config
set GOGCCFLAGS=-m64 -mthreads -Wl,--no-gc-sections -fmessage-length=0 -ffile-prefix-map=C:\Users\user\AppData\Local\Temp\go-build1176319880=/tmp/go-build -gno-record-gcc-switches

What did you do?

garble build

What did you expect to see?

Successfully build

What did you see instead?

# redacted/internal/utils/funccc
internal\utils\funccc\myfunc_windows.go:9:6: MyFunc redeclared in this block
        internal\utils\funccc\myfunc.go:10:6: other declaration of MyFunc

I have // build +windows for windows build file // build +linux for linux build file

using go build works fine

[mvdan]

Sorry but // build +windows does not mean anything in Go. Surely you mean //go:build windows, which works with both go build and garble build?

[h3cksamrat]

Yeah, //+build windows