misc/yosys-config.in uses an non-portable test(1) operator

[thorpej]

Version

Yosys 0.45

On which OS did this happen?

BSD

Reproduction Steps

Building yosys 0.45 on NetBSD fails due to an non-portable test(1) operator used in misc/yosys-config.in.

    if [ "$1" == "--build" ]; then

NetBSD's pkgsrc system has a patch for this. This issue is to track the upstreaming of that patch. A pull request with the fix is forthcoming.

Expected Behavior

The script should run.

Actual Behavior

The script errors out.

[thorpej]

Pull request filed for this issue: #4666