> Autotools doesn't use posix_spawn because there's no benefit on Linux Wait, autotools don't make syscalls at all, do they? I thought it's just shell and make

> Autotools doesn't use posix_spawn because there's no benefit on Linux Wait, autotools don't make syscalls at all, do they? I thought it's just shell and make. Is the problem that /bin/sh and /usr/bin/make use fork and it would help to have a Bourne shell and GNU-compatible make that used posix_spawn?