[当构建参数包含`-gcflags“ all = -N -l”并在MacOS中导入net / http时构建失败

Question

[当我尝试调试时，go build参数包含-gcflags "all=-N -l"，而我导入了net/http，则构建将失败。

我尝试使用brew重新安装golang，无法正常工作。

并且在卸载后尝试使用offical installation，无法正常工作。

而且我尝试sudo mv /Library/Developer/CommandLineTools CommandLineTools.old && xcode-select --install，不起作用。

根据JimB的建议，我尝试了go env -w CGO_ENABLED=0，以便可以正确构建。

有什么建议吗？

构建失败消息：

# crypto/x509
In file included from /usr/local/Cellar/go/1.14/libexec/src/crypto/x509/root_cgo_darwin.go:17:
In file included from /System/Library/Frameworks/Security.framework/Headers/Security.h:31:
/System/Library/Frameworks/Security.framework/Headers/SecItem.h:452:49: error: expected ','
    API_AVAILABLE(macos(10.7), ios(NA), bridgeos(NA));
                                                ^
    ......
                                                ^
In file included from /usr/local/Cellar/go/1.14/libexec/src/crypto/x509/root_cgo_darwin.go:17:
In file included from /System/Library/Frameworks/Security.framework/Headers/Security.h:35:
/System/Library/Frameworks/Security.framework/Headers/SecImportExport.h:317:55: error: expected ','
          API_AVAILABLE(macos(10.7), ios(NA), bridgeos(NA));
                                                      ^
    ......
/System/Library/Frameworks/Security.framework/Headers/SecImportExport.h:656:49: error: expected ','
    API_AVAILABLE(macos(10.7), ios(NA), bridgeos(NA));
                                                ^
    ......

27 errors generated.

package main
import "os"
func main() {
    println(os.Args)
}
> go build main.go                       # success
> go build -gcflags "all=-N -l" main.go  # success

--------------------------------------

package main
import "net/http"
func main() {
    println(http.DefaultClient)
}
> go build main.go                       # success
> go build -gcflags "all=-N -l" main.go  # fail       <-----------

MacOS版本：10.13.6

Xcode版本：10.0

Go版本1.14

> go env
GO111MODULE=""
GOARCH="amd64"
GOBIN=""
GOCACHE="/Users/XXX/Library/Caches/go-build"
GOENV="/Users/XXX/Library/Application Support/go/env"
GOEXE=""
GOFLAGS=""
GOHOSTARCH="amd64"
GOHOSTOS="darwin"
GOINSECURE=""
GONOPROXY=""
GONOSUMDB=""
GOOS="darwin"
GOPATH="/Users/XXX/go"
GOPRIVATE=""
GOPROXY="https://proxy.golang.org,direct"
GOROOT="/usr/local/Cellar/go/1.14"
GOSUMDB="sum.golang.org"
GOTMPDIR=""
GOTOOLDIR="/usr/local/Cellar/go/1.14/pkg/tool/darwin_amd64"
GCCGO="gccgo"
AR="ar"
CC="clang"
CXX="clang++"
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-build994818786=/tmp/go-build -gno-record-gcc-switches -fno-common"

我发现一些类似的问题：Go: build error when compiling unit tests (I'm trying to mock influxdb types)

但是我没有使用相对进口

Answer 1

问题与您的Golang安装无关，请尝试设置GOPATH和PATH：

设置GOPATH：

$ export GOPATH=$HOME/go

您要安装到主目录中的位置

设置路径：

$ export PATH=$PATH:$GOPATH/bin

然后运行go build -gcflags "all=-N -l" main.go