1 files changed, 7 insertions, 6 deletions

diff --git a/src/Makefile b/src/Makefile
index c36fa56..6d40c6b 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -1,23 +1,24 @@
 BINARIES=../bin/extract_version_1 ../bin/extract_version_2 ../bin/extract_version_3 ../bin/split_version_2 ../bin/map_coords ../bin/convert_coords
 binaries: $(BINARIES)
+CFLAGS+=-Wextra
 
 ../bin/extract_version_3: export/extract_version_3.c export/mystdlib.c
-        @$(CC) -O2 -o ../bin/extract_version_3 export/extract_version_3.c export/mystdlib.c -lz -I export
+        @$(CC) $(CFLAGS) -O2 -o ../bin/extract_version_3 export/extract_version_3.c export/mystdlib.c -lz -I export
 
 ../bin/extract_version_2: export/extract_version_2.c export/mystdlib.c
-        @$(CC) -O3 -o ../bin/extract_version_2 export/extract_version_2.c export/mystdlib.c -I export
+        @$(CC) $(CFLAGS) -O3 -o ../bin/extract_version_2 export/extract_version_2.c export/mystdlib.c -I export
 
 ../bin/extract_version_1: export/extract_version_1.c export/mystdlib.c
-        @$(CC) -O3 -o ../bin/extract_version_1 export/extract_version_1.c export/mystdlib.c -I export
+        @$(CC) $(CFLAGS) -O3 -o ../bin/extract_version_1 export/extract_version_1.c export/mystdlib.c -I export
 
 ../bin/split_version_2: export/split_version_2.c
-        @$(CC) -O3 -o ../bin/split_version_2 export/split_version_2.c
+        @$(CC) $(CFLAGS) -O3 -o ../bin/split_version_2 export/split_version_2.c
 
 ../bin/map_coords: export/map_coords.c export/mystdlib.c
-        @$(CC) -O3 -o ../bin/map_coords export/map_coords.c export/mystdlib.c -I export
+        @$(CC) $(CFLAGS) -O3 -o ../bin/map_coords export/map_coords.c export/mystdlib.c -I export
 
 ../bin/convert_coords: export/convert_coords.c
-        @$(CC) -O3 -o ../bin/convert_coords export/convert_coords.c -lm
+        @$(CC) $(CFLAGS) -O3 -o ../bin/convert_coords export/convert_coords.c -lm
 
 clean:
         @rm -f $(BINARIES)