On 05/16/2017 12:47 AM, Akash Rawal wrote: > Hello everyone, > > I observed that build-aux/bootstrap uses $(command) for command > substitution which is known to be less portable than `command`.[1]
It's less portable only if you still intend to develop on any system with /bin/sh as a non-POSIX sh (which is pretty much Solaris). There aren't many GNU developers that use Solaris as their primary system. So we haven't had many complaints. At one point, Gary Vaughan contributed patches to rewrite the bootstrap script using Autoconf's m4sh language, which uses portable shell everywhere. But while projects like libtool and M4 have used his rewrite, no one really ever took the time to review it for inclusion in upstream gnulib. -- Eric Blake, Principal Software Engineer Red Hat, Inc. +1-919-301-3266 Virtualization: qemu.org | libvirt.org
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