diff --git a/Makefile b/Makefile
index a9ebae7..d4acaf6 100644
--- a/Makefile
+++ b/Makefile
@@ -1,13 +1,19 @@
 CC ?= gcc
 CLANG ?= clang
 
-CFLAGS ?= -Werror -Wall -Wextra -funsigned-char -fwrapv -Wconversion -Wno-sign-conversion -Wmissing-format-attribute -Wpointer-arith -Wformat-nonliteral -Winit-self -Wwrite-strings -Wshadow -Wenum-compare -Wempty-body -Wparentheses -Wcast-align -Wstrict-aliasing --pedantic-errors
+EXTRA_CFLAGS ?= -Werror -Wall -Wextra -funsigned-char -fwrapv -Wconversion \
+				-Wno-sign-conversion -Wmissing-format-attribute \
+				-Wpointer-arith -Wformat-nonliteral -Winit-self \
+				-Wwrite-strings -Wshadow -Wenum-compare -Wempty-body \
+				-Wparentheses -Wcast-align -Wstrict-aliasing --pedantic-errors
 CMPCFLAGS ?= -std=c89 -Wno-c99-extensions
-TESTCFLAGS ?= -std=c99 -Wno-error=deprecated-declarations -Wno-deprecated-declarations -O0
+TESTCFLAGS ?= -std=c99 -Wno-error=deprecated-declarations \
+			  -Wno-deprecated-declarations -O0
 NOFPUTESTCFLAGS ?= $(TESTCFLAGS) -DCMP_NO_FLOAT
 
 ADDRCFLAGS ?= -fsanitize=address
-MEMCFLAGS ?= -fsanitize=memory -fno-omit-frame-pointer -fno-optimize-sibling-calls
+MEMCFLAGS ?= -fsanitize=memory -fno-omit-frame-pointer \
+			 -fno-optimize-sibling-calls
 UBCFLAGS ?= -fsanitize=undefined
 
 .PHONY: all clean test coverage
@@ -38,43 +44,57 @@ unittest: cmptest
 	@./cmptest
 
 cmp.o:
-	$(CC) $(CFLAGS) $(CMPCFLAGS) -fprofile-arcs -ftest-coverage -g -I. -c cmp.c
+	$(CC) $(CFLAGS) $(EXTRA_CFLAGS) $(CMPCFLAGS) \
+		-fprofile-arcs -ftest-coverage -g -I. -c cmp.c
 
 cmpprof: cmp.o
-	$(CC) $(CFLAGS) $(TESTCFLAGS) -fprofile-arcs -I. \
+	$(CC) $(CFLAGS) $(EXTRA_CFLAGS) $(TESTCFLAGS) $(LDFLAGS) \
+		-fprofile-arcs -I. \
 		-o cmpprof cmp.o test/profile.c test/tests.c test/buf.c test/utils.c \
 		-lcmocka -lprofiler
 
 cmptest: cmp.o
-	$(CC) $(CFLAGS) $(TESTCFLAGS) -fprofile-arcs -ftest-coverage -g -I. \
-		-o cmptest cmp.o test/test.c test/tests.c test/buf.c test/utils.c -lcmocka
+	$(CC) $(CFLAGS) $(EXTRA_CFLAGS) $(TESTCFLAGS) $(LDFLAGS) \
+		-fprofile-arcs -ftest-coverage -g -I. \
+		-o cmptest cmp.o test/test.c test/tests.c test/buf.c test/utils.c \
+		-lcmocka
 
 cmpnofloattest: cmp.o
-	$(CC) $(CFLAGS) $(NOFPUTESTCFLAGS) -fprofile-arcs -ftest-coverage -g -I. \
-		-o cmpnofloattest cmp.o test/test.c test/tests.c test/buf.c test/utils.c \
+	$(CC) $(CFLAGS) $(EXTRA_CFLAGS) $(NOFPUTESTCFLAGS) $(LDFLAGS) \
+		-fprofile-arcs -ftest-coverage -g -I. \
+		-o cmpnofloattest cmp.o test/test.c test/tests.c test/buf.c \
+		test/utils.c \
 		-lcmocka
 
 clangcmp.o:
-	$(CLANG) $(CFLAGS) $(CMPCFLAGS) -fprofile-arcs -ftest-coverage -g -I. \
-		-c cmp.c -o clangcmp.o
+	$(CLANG) $(CFLAGS) $(EXTRA_CFLAGS) $(CMPCFLAGS) \
+		-fprofile-arcs -ftest-coverage -g -I. -c cmp.c -o clangcmp.o
 
 cmpaddrtest: clangcmp.o clean
-	$(CLANG) $(CFLAGS) $(TESTCFLAGS) $(ADDRCFLAGS) -I. -o cmpaddrtest cmp.c \
-		test/test.c test/tests.c test/buf.c test/utils.c -lcmocka
+	$(CLANG) $(CFLAGS) $(EXTRA_CFLAGS) $(TESTCFLAGS) $(ADDRCFLAGS) $(LDFLAGS) \
+		-I. -o cmpaddrtest \
+		cmp.c test/test.c test/tests.c test/buf.c test/utils.c \
+		-lcmocka
 
 cmpmemtest: clangcmp.o clean
-	$(CLANG) $(CFLAGS) $(TESTCFLAGS) $(MEMCFLAGS) -I. -o cmpmemtest cmp.c \
-		test/test.c test/tests.c test/buf.c test/utils.c -lcmocka
+	$(CLANG) $(CFLAGS) $(EXTRA_CFLAGS) $(TESTCFLAGS) $(MEMCFLAGS) $(LDFLAGS) \
+		-I. -o cmpmemtest \
+		cmp.c test/test.c test/tests.c test/buf.c test/utils.c \
+		-lcmocka
 
 cmpubtest: clangcmp.o clean
-	$(CLANG) $(CFLAGS) $(TESTCFLAGS) $(UBCFLAGS) -I. -o cmpubtest cmp.c \
-		test/test.c test/tests.c test/buf.c test/utils.c -lcmocka
+	$(CLANG) $(CFLAGS) $(EXTRA_CFLAGS) $(TESTCFLAGS) $(UBCFLAGS) $(LDFLAGS) \
+		-I. -o cmpubtest \
+		cmp.c test/test.c test/tests.c test/buf.c test/utils.c \
+		-lcmocka
 
 example1:
-	$(CC) $(CFLAGS) --std=c89 -O3 -I. -o example1 cmp.c examples/example1.c
+	$(CC) $(EXTRA_CFLAGS) --std=c89 -O3 -I. -o example1 \
+		cmp.c examples/example1.c
 
 example2:
-	$(CC) $(CFLAGS) --std=c89 -O3 -I. -o example2 cmp.c examples/example2.c
+	$(CC) $(EXTRA_CFLAGS) --std=c89 -O3 -I. -o example2 \
+		cmp.c examples/example2.c
 
 coverage:
 	@rm -f base_coverage.info test_coverage.info total_coverage.info