2 files changed, 7 insertions, 2 deletions
diff --git a/Makefile b/Makefile
index 4cbd9d9..ae85740 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,6 @@
 CLM:=clm
 CLMFLAGS:=-IL Platform -nr -nt
+override CFLAGS:=-Wall -Wextra -Werror -Ofast $(CFLAGS)
 
 BIN:=sjit
 
diff --git a/sjit_c.c b/sjit_c.c
index 85702fc..54c43dc 100644
--- a/sjit_c.c
+++ b/sjit_c.c
@@ -20,7 +20,7 @@ enum instr {
 	IDivRet
 };
 
-static uint32_t instr_size(enum instr instr) {
+static inline uint32_t instr_size(enum instr instr) {
 	switch (instr) {
 		case PushRef: return 5+1;
 		case PushI:   return 7+1;
@@ -35,6 +35,10 @@ static uint32_t instr_size(enum instr instr) {
 		case ISubRet: return 5+5+3+5+1;
 		case IMulRet: return 5+5+4+5+1;
 		case IDivRet: return 5+5+3+3+5+1;
+
+		default:
+			fprintf(stderr,"unknown instruction %d\n",instr);
+			exit(1);
 	}
 }
 
@@ -169,7 +173,7 @@ static inline void gen_instr(char *full_code, char **code_p, uint64_t **pgm_p, u
 			break;
 
 		default:
-			fprintf(stderr,"unknown instruction %lu\n",pgm[-1]);
+			fprintf(stderr,"unknown instruction %d\n",(int)pgm[-1]);
 			exit(1);
 	}