[Buildroot] [PATCH 1/1] package/xz: don't override XZ_CONF_OPTS

[Fabrice Fontaine]

XZ_CONF_OPTS is wrongly overridden in a conditional since commit
0dbc17abcb5c254d60a8d59e1ae0d715c2db4324

Signed-off-by: Fabrice Fontaine <fontaine.fabrice at gmail.com>
---
 package/xz/xz.mk | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/package/xz/xz.mk b/package/xz/xz.mk
index ffbae4c873..af611975a0 100644
--- a/package/xz/xz.mk
+++ b/package/xz/xz.mk
@@ -14,9 +14,9 @@ XZ_LICENSE_FILES = COPYING COPYING.GPLv2 COPYING.GPLv3 COPYING.LGPLv2.1
 XZ_CPE_ID_VENDOR = tukaani
 
 ifeq ($(BR2_TOOLCHAIN_HAS_THREADS),y)
-XZ_CONF_OPTS = --enable-threads
+XZ_CONF_OPTS += --enable-threads
 else
-XZ_CONF_OPTS = --disable-threads
+XZ_CONF_OPTS += --disable-threads
 endif
 
 # we are built before ccache
-- 
2.34.1