February 7, 2017 - -rw-r--r-- 1 jaten jaten 19172 Feb 7 16:57 _all.o -rw-r--r-- 1 jaten jaten 1169185 Feb 7 16:57 _go_.o -rw-r--r-- 1 jaten jaten 21364 Feb 7 16:57 __.PKGDEF [jaten@biggie tmp]$ go env GOARCH="amd64" GOBIN="" GOEXE="" GOHOSTARCH="amd64" GOHOSTOS="linux" GOOS="linux" GOPATH="/home/jaten/go" GORACE="" GOROOT="/usr/local/go" GOTOOLDIR="/usr/local/go/pkg/tool/linux_amd64" GCCGO="gccgo" CC="gcc" GOGCCFLAGS="-fPIC -m64 -fmessage-length=0 -fdebug-prefix-map=/tmp/go-build885638224=/tmp/go-build -gno-record-gcc-switches" CXX="g++" CGO_ENABLED="0" PKG_CONFIG="pkg-config" CGO_CFLAGS="-g -O2" CGO_CPPFLAGS="" CGO_CXXFLAGS="-g -O2" CGO_FFLAGS="-g -O2" CGO_LDFLAGS="-g -O2" [jaten@biggie tmp]$ go version go version go1.8rc3 linux/amd64 [jaten@biggie tmp]$ unset CGO_ENABLED [jaten@biggie tmp]$ cd ..

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January 19, 2023 - CGO_CFLAGS="-I/include" CGO_LDFLAGS="-L/lib/Windows -Wl,--enable-stdcall-fixup,-rpath=/lib/Windows -lHCNetSDK" GOOS=windows CC=x86_64-w64-mingw32-gcc CXX=x86_64-w64-mingw32-g++ go build -ldflags "-s -w" -o build/Windows/magicard-recover.exe src/magicard-recover.go 'CGO_CFLAGS' is not recognized as an internal or external command, operable program or batch file.

April 7, 2026 - The cgo tool is enabled by default for native builds on systems where it is expected to work. It is disabled by default when cross-compiling as well as when the CC environment variable is unset and the default C compiler (typically gcc or clang) cannot be found on the system PATH.

For example, the following build constraint constrains a file to build when the "linux" and "386" constraints are satisfied, or when "darwin" is satisfied and "cgo" is not: //go:build (linux && 386) || (darwin && !cgo) It is an error for a file to have more than one //go:build line.

February 22, 2024 - GO111MODULE='' GOARCH='amd64' GOBIN='' GOCACHE='~/.cache/go-build' GOENV='~/.config/go/env' GOEXE='' GOEXPERIMENT='' GOFLAGS='' GOHOSTARCH='amd64' GOHOSTOS='linux' GOINSECURE='' GOMODCACHE='~/go/pkg/mod' GONOPROXY='' GONOSUMDB='' GOOS='linux' GOPATH='~/go' GOPRIVATE='' GOPROXY='https://proxy.golang.org,direct' GOROOT='/snap/go/10506' GOSUMDB='sum.golang.org' GOTMPDIR='' GOTOOLCHAIN='auto' GOTOOLDIR='/snap/go/10506/pkg/tool/linux_amd64' GOVCS='' GOVERSION='go1.22.0' GCCGO='gccgo' GOAMD64='v1' AR='ar' CC='gcc' CXX='g++' CGO_ENABLED='1' GOMOD='~/bootboot/mykernel/go/go.mod' GOWORK='' CGO_CFLAGS='-O2 -g' CGO_CPPFLAGS='' CGO_CXXFLAGS='-O2 -g' CGO_FFLAGS='-O2 -g' CGO_LDFLAGS='-O2 -g' PKG_CONFIG='pkg-config' GOGCCFLAGS='-fPIC -m64 -pthread -Wl,--no-gc-sections -fmessage-length=0 -ffile-prefix-map=/tmp/go-build4216832776=/tmp/go-build -gno-record-gcc-switches'

June 3, 2023 - No, CGO is not enabled by default; you'll need to provide a C compiler for your target architecture.

June 19, 2023 - I googled and set an CGO_ENABLED=0 environment property when building, expecting this to solve my problem.

GO111MODULE="" GOARCH="amd64" GOBIN="" GOCACHE="/Users/maximilienandile/Library/Caches/go-build" GOENV="/Users/maximilienandile/Library/Application Support/go/env" GOEXE="" GOFLAGS="" GOHOSTARCH="amd64" GOHOSTOS="darwin" GOINSECURE="" GOMODCACHE="/Users/maximilienandile/go/pkg/mod" GONOPROXY="" GONOSUMDB="" GOOS="darwin" GOPATH="/Users/maximilienandile/go" GOPRIVATE="" GOPROXY="https://proxy.golang.org,direct" GOROOT="/usr/local/go" GOSUMDB="sum.golang.org" GOTMPDIR="" GOTOOLDIR="/usr/local/go/pkg/tool/darwin_amd64" GOVCS="" GOVERSION="go1.16" GCCGO="gccgo" AR="ar" CC="clang" CXX="clang++" CGO

If you have that setup, you can specify the cross compiler to use with CC_FOR_TARGET (or CXX_FOR_TARGET) https://golang.org/cmd/cgo/

April 4, 2024 - If you still get the error that "'go' is not recognized as an internal or external command", you have to add the path to the go executable to your system's PATH environment variable.

September 3, 2016 - CGO_ENABLED=0 go get github.com/FiloSottile/justcgo/plusgo ... This is the simplified case, which might seem like the correct behavior, but how I found this was by cross-compiling github.com/mattn/go-sqlite3/_example/simple, which imports _ github.com/mattn/go-sqlite3, which register a database/sql driver. I expected the command to fail, instead it built a binary.

December 27, 2023 - $ CGO_ENABLED=0 /usr/lib64/go/1.21/bin/go build -buildmode=pie hellogo.go # command-line-arguments loadinternal: cannot find runtime/cgo

November 20, 2024 - The choice of setting CGO_ENABLED to 1 by default on these common platforms stems from a balance between usability and functionality. It caters to ease of use, allowing developers to leverage C libraries without additional setup, and ensures compatibility with essential system libraries.

Michael J Silverstri: It finds 'go.exe', but not 'go' C:\>go 'go' is not recognized as an internal or external command, operable program or batch file. C:\>go.exe Go is a tool for managing Go source code.