--- clang-14.log	2022-11-02 22:36:11.696768094 +1100
+++ clang-15.log	2022-11-02 22:36:11.697768091 +1100
@@ -1,27 +1,28 @@
 config/ctype.c:5:1: error: unknown type name 'uchar'
 uchar uc;
 ^
-config/ctype.c:19:1: warning: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Wimplicit-int]
+config/ctype.c:19:1: error: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Werror,-Wimplicit-int]
 main(){}
 ^
 int
-config/ctype.c:19:1: warning: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Wimplicit-int]
+2 errors generated.
+config/ctype.c:19:1: error: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Werror,-Wimplicit-int]
 main(){}
 ^
 int
-config/ctype.c:19:1: warning: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Wimplicit-int]
+config/ctype.c:19:1: error: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Werror,-Wimplicit-int]
 main(){}
 ^
 int
-config/ctype.c:19:1: warning: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Wimplicit-int]
+config/ctype.c:19:1: error: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Werror,-Wimplicit-int]
 main(){}
 ^
 int
-config/dl.c:5:1: warning: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Wimplicit-int]
+config/dl.c:5:1: error: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Werror,-Wimplicit-int]
 main()
 ^
 int
-config/x.c:5:1: warning: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Wimplicit-int]
+config/x.c:5:1: error: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Werror,-Wimplicit-int]
 main() {
 ^
 int