From f13d3a1eddd7c045dea5cc95e170f2f21c0a2c0e Mon Sep 17 00:00:00 2001
From: Matt Turner <mattst88@gentoo.org>
Date: Wed, 25 Mar 2020 14:34:07 -0700
Subject: [PATCH] sys-libs/glibc: Drop SPARC CHOST mangling

Somehow glibc-2.29 is also affected, even though it used to work. See
commit 7daa03609079 for the changes to later versions.

Signed-off-by: Matt Turner <mattst88@gentoo.org>
---
 sys-libs/glibc/glibc-2.29-r7.ebuild | 62 +++--------------------------
 1 file changed, 6 insertions(+), 56 deletions(-)

diff --git a/sys-libs/glibc/glibc-2.29-r7.ebuild b/sys-libs/glibc/glibc-2.29-r7.ebuild
index b883c878e019..1ffe9800d1dc 100644
--- a/sys-libs/glibc/glibc-2.29-r7.ebuild
+++ b/sys-libs/glibc/glibc-2.29-r7.ebuild
@@ -281,77 +281,27 @@ setup_target_flags() {
 			filter-flags "-fcall-used-g7"
 			append-flags "-fcall-used-g6"
 
-			# If the CHOST is the basic one (e.g. not sparcv9-xxx already),
-			# try to pick a better one so glibc can use cpu-specific .S files.
-			# We key off the CFLAGS to get a good value.  Also need to handle
-			# version skew.
-			# We can't force users to set their CHOST to their exact machine
-			# as many of these are not recognized by config.sub/gcc and such :(.
-			# Note: If the mcpu values don't scale, we might try probing CPP defines.
-			# Note: Should we factor in -Wa,-AvXXX flags too ?  Or -mvis/etc... ?
-
 			local cpu
 			case ${CTARGET} in
 			sparc64-*)
+				cpu="sparc64"
 				case $(get-flag mcpu) in
-				niagara[234])
-					if ver_test -ge 2.8 ; then
-						cpu="sparc64v2"
-					elif ver_test -ge 2.4 ; then
-						cpu="sparc64v"
-					elif ver_test -ge 2.2.3 ; then
-						cpu="sparc64b"
-					fi
-					;;
-				niagara)
-					if ver_test -ge 2.4 ; then
-						cpu="sparc64v"
-					elif ver_test -ge 2.2.3 ; then
-						cpu="sparc64b"
-					fi
-					;;
-				ultrasparc3)
-					cpu="sparc64b"
-					;;
-				*)
+				v9)
 					# We need to force at least v9a because the base build doesn't
 					# work with just v9.
 					# https://sourceware.org/bugzilla/show_bug.cgi?id=19477
-					[[ -z ${cpu} ]] && append-flags "-Wa,-xarch=v9a"
+					append-flags "-Wa,-xarch=v9a"
 					;;
 				esac
 				;;
 			sparc-*)
 				case $(get-flag mcpu) in
-				niagara[234])
-					if ver_test -ge 2.8 ; then
-						cpu="sparcv9v2"
-					elif ver_test -ge 2.4 ; then
-						cpu="sparcv9v"
-					elif ver_test -ge 2.2.3 ; then
-						cpu="sparcv9b"
-					else
-						cpu="sparcv9"
-					fi
-					;;
-				niagara)
-					if ver_test -ge 2.4 ; then
-						cpu="sparcv9v"
-					elif ver_test -ge 2.2.3 ; then
-						cpu="sparcv9b"
-					else
-						cpu="sparcv9"
-					fi
-					;;
-				ultrasparc3)
-					cpu="sparcv9b"
-					;;
-				v9|ultrasparc)
-					cpu="sparcv9"
-					;;
 				v8|supersparc|hypersparc|leon|leon3)
 					cpu="sparcv8"
 					;;
+				*)
+					cpu="sparcv9"
+					;;
 				esac
 			;;
 			esac
-- 
2.26.2