[source] glibc: re-enable parallel builds

[LEDE Commits]

nbd pushed a commit to source.git, branch master:
https://git.lede-project.org/f29774bee35928d5efc09910568775bd2cecf423

commit f29774bee35928d5efc09910568775bd2cecf423
Author: Felix Fietkau <nbd at nbd.name>
AuthorDate: Tue Aug 30 11:12:39 2016 +0200

    glibc: re-enable parallel builds
    
    Signed-off-by: Felix Fietkau <nbd at nbd.name>
---
 toolchain/glibc/Makefile | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/toolchain/glibc/Makefile b/toolchain/glibc/Makefile
index f880db8..974691c 100644
--- a/toolchain/glibc/Makefile
+++ b/toolchain/glibc/Makefile
@@ -1,11 +1,11 @@
 PATH_PREFIX := .
 VARIANT:=final
-HOST_BUILD_PARALLEL:=0
+HOST_BUILD_PARALLEL:=1
 
 include ./common.mk
 
 define Host/Compile
-	$(MAKE) -C $(CUR_BUILD_DIR) \
+	+$(MAKE) -C $(CUR_BUILD_DIR) \
 		PARALLELMFLAGS="$(HOST_JOBS)" \
 		BUILD_CFLAGS="$(HOST_CFLAGS)" \
 		all