From 8a4854aec042fc347066a8e73053490c403d7649 Mon Sep 17 00:00:00 2001
From: Sergei Trofimovich <slyfox@gentoo.org>
Date: Fri, 22 May 2020 14:18:58 +0100
Subject: gcc-config: make USE_NATIVE_LINKS=no to clean stale symlinks

Before the change symlinks like /usr/bin/cc were untouched.
After the change they are explicitly removed.

Bug: https://bugs.gentoo.org/724454
Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>
---
 gcc-config | 13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)

diff --git a/gcc-config b/gcc-config
index 847cde2..8f9d64c 100755
--- a/gcc-config
+++ b/gcc-config
@@ -287,7 +287,7 @@ update_wrappers() {
 	# `tuple-foo`.  Only native ones do we want the simple `foo`
 	# and only for USE_NATIVE_LINKS=yes mode.
 	local all_wrappers=( ${new_wrappers[@]/#/${CTARGET}-} )
-	if ! is_cross_compiler && [[ ${USE_NATIVE_LINKS} == yes ]] ; then
+	if ! is_cross_compiler ; then
 		all_wrappers+=( "${new_wrappers[@]}" )
 		# There are a few fun extra progs which we have to handle #412319
 		all_wrappers+=( cc:gcc f77:g77 )
@@ -303,12 +303,9 @@ update_wrappers() {
 		#
 		# x=cc:gcc -> ref=/path/to/gcc
 		ref="${ROOT}${GCC_PATH}/${x#*:}"
-		if [[ ${x} == *:* ]] ; then
-			# Only install a wrapper if the reference binary exists ...
-			[[ -x ${ref} ]] || continue
-		fi
 		# x=cc:gcc -> x=cc
 		x=${x%:*}
+
 		if [[ ! -x ${ref} ]] ; then
 			if is_cross_compiler ; then
 				ewarn "insanity with ${x} and ${ref}"
@@ -320,10 +317,12 @@ update_wrappers() {
 		fi
 
 		# Now do the actual linking to the target binary
-		if [[ -x ${ref} ]] ; then
+		if [[ ${x#${CTARGET}-} == ${x} && ${USE_NATIVE_LINKS} != yes ]]; then
+			# Delete stale native symlink.
+			rm -f "${EROOT}usr/bin/${x}"
+		elif [[ -x ${ref} ]] ; then
 			atomic_ln "${ref#${ROOT}}" "${EROOT}usr/bin" "${x}"
 		else
-			ewarn "double insanity with ${x} and ${ref}"
 			# Make sure we have no stale wrappers
 			rm -f "${EROOT}usr/bin/${x}"
 		fi
-- 
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