Building on Plan 9 fails

[sctaw]

What I did:

I tried to install https://github.com/anacrolix/torrent which depends on bbolt

What I expected:

to get bbolt and thus anarcolinux/torrent compiling, per 9front documentation, it has been possible to build it: http://fqa.9front.org/fqa8.html#8.4.9.2.2

What I got:

go.etcd.io/bbolt

go/pkg/mod/go.etcd.io/[email protected]/db.go:230:12: undefined: flock go/pkg/mod/go.etcd.io/[email protected]/db.go:375:12: undefined: mmap go/pkg/mod/go.etcd.io/[email protected]/db.go:404:12: undefined: munmap go/pkg/mod/go.etcd.io/[email protected]/db.go:508:12: undefined: fdatasync go/pkg/mod/go.etcd.io/[email protected]/db.go:554:14: undefined: funlock go/pkg/mod/go.etcd.io/[email protected]/db.go:914:37: undefined: fdatasync go/pkg/mod/go.etcd.io/[email protected]/mlock_unix.go:14:17: undefined: unix.Mlock go/pkg/mod/go.etcd.io/[email protected]/mlock_unix.go:32:17: undefined: unix.Munlock go/pkg/mod/go.etcd.io/[email protected]/tx.go:558:13: undefined: fdatasync go/pkg/mod/go.etcd.io/[email protected]/tx.go:595:13: undefined: fdatasync go/pkg/mod/go.etcd.io/[email protected]/tx.go:595:13: too many errors

What I tried:

Changing bbolt version to 1.3.7

Result:

go.etcd.io/bbolt

/usr/glenda/go/pkg/mod/go.etcd.io/[email protected]/db.go:242:12: undefined: flock /usr/glenda/go/pkg/mod/go.etcd.io/[email protected]/db.go:469:12: undefined: mmap /usr/glenda/go/pkg/mod/go.etcd.io/[email protected]/db.go:511:12: undefined: munmap /usr/glenda/go/pkg/mod/go.etcd.io/[email protected]/db.go:616:12: undefined: fdatasync /usr/glenda/go/pkg/mod/go.etcd.io/[email protected]/db.go:662:14: undefined: funlock /usr/glenda/go/pkg/mod/go.etcd.io/[email protected]/db.go:1035:37: undefined: fdatasync /usr/glenda/go/pkg/mod/go.etcd.io/[email protected]/mlock_unix.go:15:17: undefined: unix.Mlock /usr/glenda/go/pkg/mod/go.etcd.io/[email protected]/mlock_unix.go:33:17: undefined: unix.Munlock /usr/glenda/go/pkg/mod/go.etcd.io/[email protected]/tx.go:473:13: undefined: fdatasync /usr/glenda/go/pkg/mod/go.etcd.io/[email protected]/tx.go:510:13: undefined: fdatasync /usr/glenda/go/pkg/mod/go.etcd.io/[email protected]/tx.go:510:13: too many errors

My environment:

Plan9Front amd64 running in Qemu

go env output:

; go env GO111MODULE='' GOARCH='amd64' GOBIN='' GOCACHE='/usr/glenda/lib/cache/go-build' GOENV='/usr/glenda/lib/go/env' GOEXE='' GOEXPERIMENT='' GOFLAGS='' GOHOSTARCH='amd64' GOHOSTOS='plan9' GOINSECURE='' GOMODCACHE='/usr/glenda/go/pkg/mod' GONOPROXY='' GONOSUMDB='' GOOS='plan9' GOPATH='/usr/glenda/go' GOPRIVATE='' GOPROXY='https://proxy.golang.org,direct' GOROOT='/sys/lib/go/amd64-1.21.1' GOSUMDB='sum.golang.org' GOTMPDIR='' GOTOOLCHAIN='auto' GOTOOLDIR='/sys/lib/go/amd64-1.21.1/pkg/tool/plan9_amd64' GOVCS='' GOVERSION='go1.21.1' GCCGO='gccgo' GOAMD64='v1' AR='ar' CC='gcc' CXX='g++' CGO_ENABLED='0' GOMOD='/dev/null' 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 -fno-caret-diagnostics -Qunused-arguments -Wl,--no-gc-sections -fmessage-length=0 -ffile-prefix-map=/tmp/go-build2933823274=/tmp/go-build -gno-record-gcc-switches'

[ahrtr]

Thanks for raising this. Unfortunately bbolt doesn't support plan9 so far.

But it might just need minor effort to support it,

• Add a new file bolt_plan9.go to implement flock, funlock, mmap, munmap and fdatasync. Similar to bolt_windows.go
• Add a new file mlock_plan9.go to implement mlock and munlock, similar to mlock_windows.go. Also change //go:build !windows to //go:build !windows && !plan9 in mlock_unix.go.

[ahrtr]

https://github.com/etcd-io/bbolt/pull/626#issuecomment-1837475990

[ahrtr]

Linked to https://github.com/etcd-io/bbolt/issues/665