Add misra target

Author: cpq

Makefile

@@ -120,6 +120,13 @@ valgrind: Makefile mongoose.h mongoose.c
 	$(CC) $(SRCS) $(VALGRIND_CFLAGS) $(LDFLAGS) -g -o unit_test
 	$(VALGRIND_RUN) ./unit_test
 
+misra:
+	cppcheck --addon=misra -DMG_ARCH=MG_ARCH_UNIX -DMG_ENABLE_PACKED_FS=1 -DMG_ENABLE_SSI=1 mongoose.c >/tmp/x 2>&1
+	cppcheck --addon=misra -DMG_ARCH=MG_ARCH_CUSTOM -DMG_ENABLE_LINES=1 -DTLS=MG_TLS_BUILTIN -DMG_ENABLE_TCPIP=1 mongoose.c  >>/tmp/x 2>&1
+	cppcheck --addon=misra --clang -DMG_ENABLE_LINES=1 -DTLS=MG_TLS_BUILTIN -DMG_ENABLE_TCPIP=1 mongoose.c  >>/tmp/x 2>&1
+	cppcheck --addon=misra --clang -DMG_ENABLE_LINES=1 -DMG_ENABLE_SSI=1 mongoose.c  >>/tmp/x 2>&1
+	less /tmp/x
+
 armhf: ASAN=
 armhf: IPV6=0
 armhf: CC = $(DOCKER) mdashnet/armhf cc