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cmd/go: "go test" needs gcc when importing "net" #33840

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cespedes opened this issue Aug 26, 2019 · 3 comments
Closed

cmd/go: "go test" needs gcc when importing "net" #33840

cespedes opened this issue Aug 26, 2019 · 3 comments
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FrozenDueToAge NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one.
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@cespedes
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What version of Go are you using (go version)?

$ go version
go version go1.12.9 linux/amd64

Does this issue reproduce with the latest release?

Yes, tested with latest stable version (1.12.9).

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

go env Output
$ go env
GOARCH="amd64"
GOBIN=""
GOCACHE="/home/cespedes/.cache/go-build"
GOEXE=""
GOFLAGS=""
GOHOSTARCH="amd64"
GOHOSTOS="linux"
GOOS="linux"
GOPATH="/home/cespedes/go"
GOPROXY=""
GORACE=""
GOROOT="/usr/lib/go-1.12"
GOTMPDIR=""
GOTOOLDIR="/usr/lib/go-1.12/pkg/tool/linux_amd64"
GCCGO="gccgo"
CC="gcc"
CXX="g++"
CGO_ENABLED="1"
GOMOD=""
CGO_CFLAGS="-g -O2"
CGO_CPPFLAGS=""
CGO_CXXFLAGS="-g -O2"
CGO_FFLAGS="-g -O2"
CGO_LDFLAGS="-g -O2"
PKG_CONFIG="pkg-config"
GOGCCFLAGS="-fPIC -m64 -pthread -fno-caret-diagnostics -Qunused-arguments -fmessage-length=0 -fdebug-prefix-map=/tmp/go-build945969099=/tmp/go-build -gno-record-gcc-switches"

What did you do?

$ ls
foo.go
$ cat foo.go 
package foo

import _ "net"
$ go test foo.go 
# runtime/cgo
exec: "gcc": executable file not found in $PATH

"go build" runs without problems, but "go test" needs gcc.

AFAIK, this bug is the same as #27303, but not #26988. Both were closed, but the former is not fixed yet (at least with 1.12.9).
@bcmills bcmills changed the title "go test" needs gcc when importing "net" cmd/go: "go test" needs gcc when importing "net" Aug 26, 2019
@bcmills bcmills added the NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one. label Aug 26, 2019
@bcmills bcmills added this to the Go1.14 milestone Aug 26, 2019
@rsc rsc modified the milestones: Go1.14, Backlog Oct 9, 2019
@jingxu97
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jingxu97 commented Feb 1, 2020

Have the similar issue.
Based on #27303, the following works,
export CGO_ENABLED=0

But is this issue really solved?

@petemoore petemoore mentioned this issue Feb 5, 2020
Closed
@jayconrod jayconrod mentioned this issue Feb 10, 2020
Open
@jayconrod jayconrod mentioned this issue Jul 15, 2021
Closed
@iwdgo
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iwdgo commented Apr 3, 2022

Issue does not occur probably since https://go-review.googlesource.com/c/go/+/335409/
but other changes have occur.
Error now returned for case provided ? command-line-arguments [no test files] which seems appropriate.

@rsc
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rsc commented Dec 12, 2022

I believe this was already fixed, but Go 1.20 will fix this again by automatically disabling cgo if there is no C compiler.

@rsc rsc closed this as completed Dec 12, 2022
@golang golang locked and limited conversation to collaborators Dec 12, 2023
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@rsc @bcmills @cespedes @gopherbot @jingxu97 @iwdgo