[commit: ghc] wip/jenkins: bindist: Compress with threaded xz by default (1724433)

[git at git.haskell.org]

Repository : ssh://git@git.haskell.org/ghc

On branch  : wip/jenkins
Link       : http://ghc.haskell.org/trac/ghc/changeset/17244330fa3ed964a4229decdcc1ac3f1abfb91e/ghc

>---------------------------------------------------------------

commit 17244330fa3ed964a4229decdcc1ac3f1abfb91e
Author: Ben Gamari <ben at smart-cactus.org>
Date:   Sun Jun 4 12:19:13 2017 -0400

    bindist: Compress with threaded xz by default


>---------------------------------------------------------------

17244330fa3ed964a4229decdcc1ac3f1abfb91e
 mk/config.mk.in | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mk/config.mk.in b/mk/config.mk.in
index 2e920ca..45e5587 100644
--- a/mk/config.mk.in
+++ b/mk/config.mk.in
@@ -795,7 +795,7 @@ else ifeq "$(TAR_COMP)" "gzip"
 TAR_COMP_CMD  = $(GZIP_CMD)
 TAR_COMP_EXT  = gz
 else ifeq "$(TAR_COMP)" "xz"
-TAR_COMP_CMD  = $(XZ_CMD)
+TAR_COMP_CMD  = $(XZ_CMD) --threads=0
 TAR_COMP_EXT  = xz
 else
 $(error $$(TAR_COMP) set to unknown value "$(TAR_COMP)" (supported: "bzip2", "gzip", "xz"))