--- a/src/Makefile	2021-03-26 22:53:48.650299401 -0400
+++ b/src/Makefile	2021-03-26 22:55:11.157618240 -0400
@@ -1,4 +1,5 @@
-CFLAGS=-g -Wall -O3 -std=gnu99
+CFLAGS+=-g -Wall -O3 -std=gnu99
+LDFLAGS+=
 LIBDIR=../lib
 BINDIR=../bin
 LIBS= -lwiggletools -lBigWig -lcurl -lhts -lgsl  -lgslcblas -lz -lpthread -lm -llzma -lbz2
@@ -18,7 +19,7 @@
 	mkdir -p ${LIBDIR}
 	ar rcs ${LIBDIR}/libwiggletools.a *.o
 
-%.o: %.c; ${CC} ${CFLAGS} ${INC} ${CPPFLAGS} ${OPTS} -c $< -o $@
+%.o: %.c; ${CC} ${CFLAGS} ${LDFLAGS} ${INC} ${CPPFLAGS} ${OPTS} -c $< -o $@
 
 clean:
 	rm -Rf *.o *.a wiggletools