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From: Ed Maste <emaste@FreeBSD.org>
Date: Wed, 8 Jan 2020 21:07:55 +0000 (UTC)
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Subject: svn commit: r356517 - in head/gnu/lib: . libgcc
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Author: emaste
Date: Wed Jan  8 21:07:55 2020
New Revision: 356517
URL: https://svnweb.freebsd.org/changeset/base/356517

Log:
  Retire build support for GCC's DWARF unwinder
  
  As of r356514 LLVM's libunwind is used as the DWARF unwinder on all
  supported CPU architectures, and GCC and its libraries will be removed
  soon.  Retire the build infrastructure for GCC's unwinder; from here
  if there are any unwinder bugs (on any arch) the path forward is to fix
  LLVM's libunwind.

Deleted:
  head/gnu/lib/libgcc/
Modified:
  head/gnu/lib/Makefile

Modified: head/gnu/lib/Makefile
==============================================================================
--- head/gnu/lib/Makefile	Wed Jan  8 20:56:30 2020	(r356516)
+++ head/gnu/lib/Makefile	Wed Jan  8 21:07:55 2020	(r356517)
@@ -19,10 +19,6 @@ SUBDIR+=		csu
 SUBDIR+=		libregex
 .endif
 
-.if ${MK_LLVM_LIBUNWIND} == "no"
-SUBDIR+=		libgcc
-.endif
-
 # libsupc++ uses libstdc++ headers, although 'make includes' should
 # have taken care of that already.
 .if ${MK_GNUCXX} != "no"