Root go.mod interferes during build of go-native-1.12.9-r0

[davidknezic]

During the bitbake build the go-native-1.12.9-r0 compile step fails with following error:

Log data follows:
| DEBUG: Executing shell function do_compile
| Building Go cmd/dist using /workdir/sweetbit/yocto/build/tmp/work/x86_64-linux/go-native/1.12.9-r0/go1.4/go.
| Building Go toolchain1 using /workdir/sweetbit/yocto/build/tmp/work/x86_64-linux/go-native/1.12.9-r0/go1.4/go.
| Building Go bootstrap cmd/go (go_bootstrap) using Go toolchain1.
| Building Go toolchain2 using go_bootstrap and Go toolchain1.
| go: golang.org/x/net@v0.0.0-20190628185345-da137c7871d7: unrecognized import path "golang.org/x/net" (https fetch: no http in bootstrap go command)
| go: go.etcd.io/bbolt@v1.3.3: unrecognized import path "go.etcd.io/bbolt" (https fetch: no http in bootstrap go command)
| go: golang.org/x/sys@v0.0.0-20190712062909-fae7ac547cb7: unrecognized import path "golang.org/x/sys" (https fetch: no http in bootstrap go command)
| go: golang.org/x/text@v0.3.2: unrecognized import path "golang.org/x/text" (https fetch: no http in bootstrap go command)
| go: google.golang.org/appengine@v1.4.0: unrecognized import path "google.golang.org/appengine" (https fetch: no http in bootstrap go command)
| go: periph.io/x/periph@v3.4.0+incompatible: unrecognized import path "periph.io/x/periph" (https fetch: no http in bootstrap go command)
| go: google.golang.org/grpc@v1.22.0: unrecognized import path "google.golang.org/grpc" (https fetch: no http in bootstrap go command)
| go: google.golang.org/genproto@v0.0.0-20190716160619-c506a9f90610: unrecognized import path "google.golang.org/genproto" (https fetch: no http in bootstrap go command)
| go: golang.org/x/crypto@v0.0.0-20190701094942-4def268fd1a4: unrecognized import path "golang.org/x/crypto" (https fetch: no http in bootstrap go command)
| go: error loading module requirements
| go tool dist: FAILED: /workdir/sweetbit/yocto/build/tmp/work/x86_64-linux/go-native/1.12.9-r0/go/pkg/tool/linux_amd64/go_bootstrap install -gcflags=all= -ldflags=all= -i cmd/asm cmd/cgo cmd/compile cmd/link: exit status 1
| WARNING: exit code 2 from a shell command.
| ERROR: Function failed: do_compile (log file is located at /workdir/sweetbit/yocto/build/tmp/work/x86_64-linux/go-native/1.12.9-r0/temp/log.do_compile.84199)

This happens since the yocto files are part of the sweetd repository, which has a go.mod file in its root that is being pulled during compilation. Possible solutions:

• Move build directory out of project tree
• Temporarily move go.mod before and after compilation of go-native
• Nest sweetd Go project in src
• Set GO111MODULE=off in go-native build