go-1.4 @1.4.3_1: warning: unable to find runtime/cgo.a

[ar-an-ribe]

After uninstalling the go @1.17.13 and go-1.4 @1.4.3_1 ports from my laptop with OS X 10.9 (Mavericks), I’d reïnstalled go-1.4 @1.4.3_1 to try my hand at compiling Go 1.10.8 [the last supported version of Go on Mavericks] from source, and the compilation process emitted a warning that it was unable to find runtime/cgo.a before producing a fatal error:

Building Go cmd/dist using /opt/local/lib/go-1.4.
Building Go toolchain1 using /opt/local/lib/go-1.4.
Building Go bootstrap cmd/go (go_bootstrap) using Go toolchain1.
warning: unable to find runtime/cgo.a
Building Go toolchain2 using go_bootstrap and Go toolchain1.
fatal error: runtime: bsdthread_register error

runtime stack:
runtime.throw(0x4301e9b, 0x21)
	/Users/ar-an-ribe/go-1.10.8/src/runtime/panic.go:616 +0x81 fp=0x7fff5fbfec88 sp=0x7fff5fbfec68 pc=0x4029e31
runtime.goenvs()
	/Users/ar-an-ribe/go-1.10.8/src/runtime/os_darwin.go:129 +0x83 fp=0x7fff5fbfecb8 sp=0x7fff5fbfec88 pc=0x40279b3
runtime.schedinit()
	/Users/ar-an-ribe/go-1.10.8/src/runtime/proc.go:501 +0xd6 fp=0x7fff5fbfed20 sp=0x7fff5fbfecb8 pc=0x402c726
runtime.rt0_go(0x7fff5fbfed68, 0x9, 0x7fff5fbfed68, 0x0, 0x7fff90f195fd, 0x7fff90f195fd, 0x0, 0x9, 0x7fff5fbff008, 0x7fff5fbff051, ...)
	/Users/ar-an-ribe/go-1.10.8/src/runtime/asm_amd64.s:252 +0x1f4 fp=0x7fff5fbfed28 sp=0x7fff5fbfed20 pc=0x4051ff4
go tool dist: FAILED: /Users/ar-an-ribe/Source/go-1.10.8/pkg/tool/darwin_amd64/go_bootstrap install -gcflags=all= -ldflags=all=\"-extldflags=${configure.ldflags}\" -i cmd/asm cmd/cgo cmd/compile cmd/link: exit status 2

Should a runtime/cgo.a file have been installed as part of the go-1.4 @1.4.3_1 port? There are numerous files within the /opt/local/lib/go-1.4 directory hierarchy that begin with “cgo”, including (but not limited to) a ./src/runtime/cgo directory, but a “cgo.a” file was nowhere within that directory hierarchy.

I don’t know whether or not the fatal error above was caused by the absence of the runtime/cgo.a file.

No notes were included with the go-1.4 @1.4.3_1 port, so I don’t know if any or all of the GO_EXTLINK_ENABLED, GO_LDFLAGS, and CGO_LDFLAGS environment variables (which were mentioned in the notes of the go @1.17.13 port) need to be set to allow compilation of supported versions of Go from source using the go-1.4 @1.4.3_1 port.