Show HN: Making GNU Make a better Task Runner

Re:Show HN: Making GNU Make a better Task Runner by jgrahamc on Monday May 13, 2024 @11:05AM (#40344175)

I think this post is well intentioned but misses the point entirely.
GOOS=darwin GOARCH=arm64 go build -ldflags="-X 'main.Version=v1.2.3'"
Executing this with variables for os/arch/version is not straightforward in a makefile. You might argue that it's a flaw with the `go build` command, but replace go with cargo/dotnet/maven and you have the same problem.

What makes that hard? I think the following works correctly:

    $ cat Makefile
    goos := FOO
    goarch := BAR
    mainversion := BAZ

    .PHONY: build
    build: ; @GOOS=$(goos) GOARCH=$(goarch) go build -ldflags="-X 'main.Version=v$(mainversion)'"*

    $ make -n
    GOOS=FOO GOARCH=BAR go build -ldflags="-X 'main.Version=vBAZ'"

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