--- clang-14.log	2022-11-02 22:36:17.935747924 +1100
+++ clang-15.log	2022-11-02 22:36:17.935747924 +1100
@@ -1,30 +1,30 @@
-ignoreme: warning: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Wimplicit-int]
+ignoreme: error: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Werror,-Wimplicit-int]
 main() { exit(0); strerror(0); }
 ^
 int
-ignoreme: warning: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Wimplicit-int]
+ignoreme: error: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Werror,-Wimplicit-int]
 main() { exit(0); }
 ^
 int
-ignoreme: warning: call to undeclared library function 'exit' with type 'void (int) __attribute__((noreturn))'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
+ignoreme: error: call to undeclared library function 'exit' with type 'void (int) __attribute__((noreturn))'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration]
 main() { exit(0); }
          ^
 ignoreme: note: include the header <stdlib.h> or explicitly provide a declaration for 'exit'
-2 warnings generated.
-ignoreme: warning: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Wimplicit-int]
+2 errors generated.
+ignoreme: error: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Werror,-Wimplicit-int]
 main() { exit(0); }
 ^
 int
-ignoreme: warning: call to undeclared library function 'exit' with type 'void (int) __attribute__((noreturn))'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
+ignoreme: error: call to undeclared library function 'exit' with type 'void (int) __attribute__((noreturn))'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration]
 main() { exit(0); }
          ^
 ignoreme: note: include the header <stdlib.h> or explicitly provide a declaration for 'exit'
-2 warnings generated.
-ignoreme: warning: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Wimplicit-int]
+2 errors generated.
+ignoreme: error: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Werror,-Wimplicit-int]
 main() { exit(0); rindex(0, 0); bzero(0, 0); }
 ^
 int
-ignoreme: warning: call to undeclared library function 'exit' with type 'void (int) __attribute__((noreturn))'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
+ignoreme: error: call to undeclared library function 'exit' with type 'void (int) __attribute__((noreturn))'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration]
 main() { exit(0); rindex(0, 0); bzero(0, 0); }
          ^
 ignoreme: note: include the header <stdlib.h> or explicitly provide a declaration for 'exit'
@@ -35,31 +35,31 @@
 main() { exit(0); rindex(0, 0); bzero(0, 0); }
                                          ^
 ignoreme: note: parenthesize the second argument to silence
-4 warnings generated.
-ignoreme: warning: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Wimplicit-int]
+2 warnings and 2 errors generated.
+ignoreme: error: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Werror,-Wimplicit-int]
 main() { uid_t x; exit(0); }
 ^
 int
-ignoreme: warning: call to undeclared library function 'exit' with type 'void (int) __attribute__((noreturn))'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
+ignoreme: error: call to undeclared library function 'exit' with type 'void (int) __attribute__((noreturn))'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration]
 main() { uid_t x; exit(0); }
                   ^
 ignoreme: note: include the header <stdlib.h> or explicitly provide a declaration for 'exit'
-2 warnings generated.
-ignoreme: warning: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Wimplicit-int]
+2 errors generated.
+ignoreme: error: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Werror,-Wimplicit-int]
 main() { char *p = (char *) alloca(1); exit(0); }
 ^
 int
-ignoreme: warning: call to undeclared library function 'exit' with type 'void (int) __attribute__((noreturn))'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
+ignoreme: error: call to undeclared library function 'exit' with type 'void (int) __attribute__((noreturn))'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration]
 main() { char *p = (char *) alloca(1); exit(0); }
                                        ^
 ignoreme: note: include the header <stdlib.h> or explicitly provide a declaration for 'exit'
-2 warnings generated.
-ignoreme: warning: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Wimplicit-int]
+2 errors generated.
+ignoreme: error: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Werror,-Wimplicit-int]
 main() { exit(0); }
 ^
 int
-ignoreme: warning: call to undeclared library function 'exit' with type 'void (int) __attribute__((noreturn))'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
+ignoreme: error: call to undeclared library function 'exit' with type 'void (int) __attribute__((noreturn))'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration]
 main() { exit(0); }
          ^
 ignoreme: note: include the header <stdlib.h> or explicitly provide a declaration for 'exit'
-2 warnings generated.
+2 errors generated.