Compiling Conditional Go files

[dadgar]

Go lets you have compile flags or suffixes on files that gate on what platform they are built on. You can see a description here.

You can force the go tool chain to compile specific OS/Architecture using environment variables:
GOOS=windows go build foo_windows.go would compile this even if you are on linux or a mac. It would be nice to incorporate this as it means when you are developing on a project that targets many operating systems, syntactic is disabled on certain files essentially. Would be cool for Neomake as well

[lcd047]

If go were an usual checker, you would just set exe and fname and everything would be fine. Sadly, go makes a weird checker, at best. For the environment variable, exporting it from the relevant shell's profile should work (at least on UNIX-like OSes):

GOOS=windows
export GOOS

For the modified filename you could try something like this:

autocmd BufRead,BufNewFile *.go
    \ let b:syntastic_go_go_build_args=syntastic#util#shescape(expand('<amatch>:p:r', 1) . '_windows.go')

I can't comment on Neomake.