maintainer-feedback requested: [Bug 218562] graphics/dri: typo in BSD sed fix from Mesa 17.1

[bugzilla-noreply at freebsd.org]

Jan Beich <jbeich at FreeBSD.org> has reassigned Bugzilla Automation
<bugzilla at FreeBSD.org>'s request for maintainer-feedback to x11 at FreeBSD.org:
Bug 218562: graphics/dri: typo in BSD sed fix from Mesa 17.1
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=218562



--- Description ---
Created attachment 181681
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=181681&action=edit
v0

Despite discussion in bug 217016 my patch there was discarded in favor of
manually backporting upstream change and making the same mistake upstream did.
configure.ac has to be preprocessed by autoconf in order to remove extra [...]
symbols used for quoting character list. Doing so would properly strip -f*
flags including -fno-exceptions.

  $ llvm-config40 --cxxflags | sed -E ... -e
's/[[[:space:]]]+-f[[^[:space:]]]*//g' ...

vs.

  $ llvm-config40 --cxxflags | sed -E ... -e 's/[[:space:]]+-f[^[:space:]]*//g'
...