diff --git a/pipepar/Makefile b/pipepar/Makefile
index db2fed0..051e329 100644
--- a/pipepar/Makefile
+++ b/pipepar/Makefile
@@ -1,6 +1,5 @@
 fmr_omp-str_base: fmr_omp-str_base.S
-	gcc -fopenmp -o $@ $< -lm
+	gcc $(CFLAGS) -fopenmp -o $@ $< -lm
 
 fmr_omp-str_base.S: fmr_omp-str_base.c
-	gcc -S -fopenmp -o $@ $<
-	# patch -p0 < fmr_omp-str_base-batch_queue.patch
+	gcc $(CFLAGS) -S -fopenmp -o $@ $<