Compile C source with -std=c99.
@@ -10,7 +10,7 @@ test:
$(MAKE) test_c
test_c:
- gcc -Wall -Wpedantic -Werror \
+ gcc -Wall -Wpedantic -Werror -std=c99 \
tests/main.c \
tests/files/c_source/motohawk.c \
tests/files/c_source/padding_bit_order.c \
