fix missig directory

app/arch/xz-utils/ympbuild

@@ -28,5 +28,6 @@ build(){
 }
 package(){
     make install -j$(nproc)
+    mkdir -p ${DESTDIR}/etc/ld.so.conf.d/
     echo "/usr/lib64/xz-utils/" > ${DESTDIR}/etc/ld.so.conf.d/xz-utils.conf
 }