faster build

1 files changed, 1 insertions, 1 deletions

diff --git a/Makefile b/Makefile
index 4b684bf..8dbd176 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,5 @@
 build:
-	python setup.py build_ext --inplace
+	python setup.py build_ext --inplace -j4
 
 clean:
 	find pyisda \( -name *.c -o -name *.h -o -name *.so -o -name *.cpp -o -name *.html \) -exec rm {} \;