[gentoo-dev] [PATCH 1/8] kernel-2.eclass: decompress xz in parallel

[Sam James <sam@gentoo.org>]

No-op until >=app-arch/xz-utils-5.3.3_alpha. Recently added support
for this in Portage and pkgcore too for unpacking.

Signed-off-by: Sam James <sam@gentoo.org>
---
 eclass/kernel-2.eclass | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/eclass/kernel-2.eclass b/eclass/kernel-2.eclass
index 50464470a9bb..c18ef21099d1 100644
--- a/eclass/kernel-2.eclass
+++ b/eclass/kernel-2.eclass
@@ -281,7 +281,7 @@
 # If you do change them, there is a chance that we will not fix resulting bugs;
 # that of course does not mean we're not willing to help.
 
-inherit estack toolchain-funcs
+inherit estack multiprocessing toolchain-funcs
 
 case ${EAPI} in
 	7|8) ;;
@@ -1065,7 +1065,7 @@ unipatch() {
 			extention=${extention/:*/}
 			PIPE_CMD=""
 			case ${extention} in
-				     xz) PIPE_CMD="xz -dc";;
+				     xz) PIPE_CMD="xz -T$(makeopts_jobs) -dc";;
 				   lzma) PIPE_CMD="lzma -dc";;
 				    bz2) PIPE_CMD="bzip2 -dc";;
 				 patch*) PIPE_CMD="cat";;
-- 
2.38.0