[Differential] D22061: Build toolchain components as dynamically linked executables by default

[dim (Dimitry Andric)]

dim created this revision.
dim added reviewers: emaste, imp, jhb, kib.
Herald added a subscriber: bdrewery.
Herald added a reviewer: manpages.

REVISION SUMMARY
  Historically, we have built toolchain components such as cc, ld, etc as
  statically linked executables.  One of the reasons being that you could
  sometimes save yourself from botched upgrades, by e.g. recompiling a
  "known good" libc and reinstalling it.
  
  In this day and age, we have boot environments, virtual machine
  snapshots, cloud backups, and other much more reliable methods to
  restore systems to working order.  So I think the time is ripe to flip
  this default, and link the toolchain components dynamically, just like
  almost all other executables on FreeBSD.
  
  Maybe at some point they can even become PIE executables by default! :)

REPOSITORY
  rS FreeBSD src repository

REVISION DETAIL
  https://reviews.freebsd.org/D22061

AFFECTED FILES
  share/man/man5/src.conf.5
  share/mk/src.opts.mk
  tools/build/options/WITHOUT_SHARED_TOOLCHAIN

EMAIL PREFERENCES
  https://reviews.freebsd.org/settings/panel/emailpreferences/

To: dim, emaste, imp, jhb, kib, #manpages
Cc: bdrewery, freebsd-toolchain-list
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