Warning cleanup

- ignoring const
- declarations after statements
- some C files didnt include own headers (risking them getting out of sync)

Closes #1064

src/common/make-te.c

@@ -42,7 +42,7 @@
 #include <string.h>
 #include <stdlib.h>
 
-int main()
+int main(void)
 {
 	char name[512];
 	char num[512];