--- clang-14.log	2022-11-02 22:36:17.643748858 +1100
+++ clang-15.log	2022-11-02 22:36:17.644748855 +1100
@@ -1,131 +1,132 @@
 
 
 
-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'
-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]
 t() { /* Ultrix mips cc rejects this.  */
 ^
 int
 ignoreme: warning: non-void function does not return a value [-Wreturn-type]
  }
  ^
-4 warnings generated.
-ignoreme: warning: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Wimplicit-int]
+1 warning and 3 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'
-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]
 t() { signed char x;
 ^
 int
 ignoreme: warning: non-void function does not return a value [-Wreturn-type]
  }
  ^
-4 warnings generated.
-ignoreme: warning: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Wimplicit-int]
+1 warning and 3 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'
-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]
 t() { extern int foo(int bar);
 ^
 int
 ignoreme: warning: non-void function does not return a value [-Wreturn-type]
  }
  ^
-4 warnings generated.
-ignoreme: warning: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Wimplicit-int]
+1 warning and 3 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'
-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]
 t() { ;}
 ^
 int
 ignoreme: warning: non-void function does not return a value [-Wreturn-type]
 t() { ;}
        ^
-4 warnings generated.
+1 warning and 3 errors generated.
 
-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'
-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]
 t() { char *cp = MAKESTRING(foo);
 ^
 int
 ignoreme: warning: non-void function does not return a value [-Wreturn-type]
  }
  ^
-4 warnings generated.
-ignoreme: warning: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Wimplicit-int]
+1 warning and 3 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'
-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]
 t() { char *GLUE(c,p) = "foo";
 ^
 int
 ignoreme: warning: non-void function does not return a value [-Wreturn-type]
  }
  ^
-4 warnings generated.
-ignoreme: warning: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Wimplicit-int]
+1 warning and 3 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'
-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]
 t() { extern void *foo();
 ^
 int
 ignoreme: warning: non-void function does not return a value [-Wreturn-type]
  }
  ^
-4 warnings generated.
+1 warning and 3 errors generated.
 
 ignoreme: error: unknown type name 'error'
   error
   ^
-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'
-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]
 t() {  }
 ^
 int
+3 errors generated.
 
 
 
@@ -135,63 +136,66 @@
 /usr/include/bits/types/sigset_t.h:7:20: note: previous definition is here
 typedef __sigset_t sigset_t;
                    ^
-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'
-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]
 t() {  }
 ^
 int
+4 errors generated.
 ignoreme: error: typedef redefinition with different types ('void' vs '__sig_atomic_t' (aka 'int'))
 typedef void sig_atomic_t;
              ^
 /usr/include/bits/types/sig_atomic_t.h:8:24: note: previous definition is here
 typedef __sig_atomic_t sig_atomic_t;
                        ^
-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'
-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]
 t() {  }
 ^
 int
+4 errors generated.
 ignoreme: error: redefinition of 'sigaction'
 struct sigaction {char *foo;};
        ^
 /usr/include/bits/sigaction.h:27:8: note: previous definition is here
 struct sigaction
        ^
-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'
-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]
 t() {  }
 ^
 int
-ignoreme: warning: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Wimplicit-int]
+4 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'
-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]
 t() { extern struct {int foo;} *sigaction();
 ^
 int
@@ -207,15 +211,16 @@
 /usr/include/signal.h:243:12: note: previous declaration is here
 extern int sigaction (int __sig, const struct sigaction *__restrict __act,
            ^
-ignoreme: warning: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Wimplicit-int]
+1 warning and 4 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'
-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]
 t() { extern struct {int foo;} *sigemptyset();
 ^
 int
@@ -231,15 +236,16 @@
 /usr/include/signal.h:199:12: note: previous declaration is here
 extern int sigemptyset (sigset_t *__set) __THROW __nonnull ((1));
            ^
-ignoreme: warning: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Wimplicit-int]
+1 warning and 4 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'
-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]
 t() { extern struct {int foo;} *sigfillset();
 ^
 int
@@ -255,15 +261,16 @@
 /usr/include/signal.h:202:12: note: previous declaration is here
 extern int sigfillset (sigset_t *__set) __THROW __nonnull ((1));
            ^
-ignoreme: warning: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Wimplicit-int]
+1 warning and 4 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'
-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]
 t() { extern struct {int foo;} *sigaddset();
 ^
 int
@@ -279,15 +286,16 @@
 /usr/include/signal.h:205:12: note: previous declaration is here
 extern int sigaddset (sigset_t *__set, int __signo) __THROW __nonnull ((1));
            ^
-ignoreme: warning: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Wimplicit-int]
+1 warning and 4 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'
-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]
 t() { extern struct {int foo;} *sigdelset();
 ^
 int
@@ -303,15 +311,16 @@
 /usr/include/signal.h:208:12: note: previous declaration is here
 extern int sigdelset (sigset_t *__set, int __signo) __THROW __nonnull ((1));
            ^
-ignoreme: warning: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Wimplicit-int]
+1 warning and 4 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'
-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]
 t() { extern struct {int foo;} *sigismember();
 ^
 int
@@ -327,15 +336,16 @@
 /usr/include/signal.h:211:12: note: previous declaration is here
 extern int sigismember (const sigset_t *__set, int __signo)
            ^
-ignoreme: warning: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Wimplicit-int]
+1 warning and 4 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'
-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]
 t() { extern struct {int foo;} *sigaction();
 ^
 int
@@ -351,15 +361,16 @@
 /usr/include/signal.h:243:12: note: previous declaration is here
 extern int sigaction (int __sig, const struct sigaction *__restrict __act,
            ^
-ignoreme: warning: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Wimplicit-int]
+1 warning and 4 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'
-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]
 t() { extern struct {int foo;} *sigprocmask();
 ^
 int
@@ -375,15 +386,16 @@
 /usr/include/signal.h:232:12: note: previous declaration is here
 extern int sigprocmask (int __how, const sigset_t *__restrict __set,
            ^
-ignoreme: warning: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Wimplicit-int]
+1 warning and 4 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'
-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]
 t() { extern struct {int foo;} *sigpending();
 ^
 int
@@ -399,15 +411,16 @@
 /usr/include/signal.h:247:12: note: previous declaration is here
 extern int sigpending (sigset_t *__set) __THROW __nonnull ((1));
            ^
-ignoreme: warning: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Wimplicit-int]
+1 warning and 4 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'
-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]
 t() { extern struct {int foo;} *sigsuspend();
 ^
 int
@@ -423,116 +436,109 @@
 /usr/include/signal.h:240:12: note: previous declaration is here
 extern int sigsuspend (const sigset_t *__set) __nonnull ((1));
            ^
-ignoreme: warning: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Wimplicit-int]
+1 warning and 4 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'
-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]
 t() { 
 ^
 int
 ignoreme: warning: non-void function does not return a value [-Wreturn-type]
  }
  ^
-4 warnings generated.
-/usr/bin/x86_64-pc-linux-gnu-ld: /var/tmp/portage/sci-libs/xgks-pmel-2.5.5/temp/conftest.o: in function `t':
-conftest.c:(.text+0x13): undefined reference to `sigvec'
-clang-15: error: linker command failed with exit code 1 (use -v to see invocation)
-ignoreme: warning: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Wimplicit-int]
+1 warning and 3 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'
-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]
 t() { 
 ^
 int
 ignoreme: warning: non-void function does not return a value [-Wreturn-type]
  }
  ^
-4 warnings generated.
-ignoreme: warning: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Wimplicit-int]
+1 warning and 3 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'
-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]
 t() { 
 ^
 int
 ignoreme: warning: non-void function does not return a value [-Wreturn-type]
  }
  ^
-4 warnings generated.
-ignoreme: warning: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Wimplicit-int]
+1 warning and 3 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'
-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]
 t() { 
 ^
 int
 ignoreme: warning: non-void function does not return a value [-Wreturn-type]
  }
  ^
-4 warnings generated.
-ignoreme: warning: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Wimplicit-int]
+1 warning and 3 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'
-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]
 t() { 
 ^
 int
 ignoreme: warning: non-void function does not return a value [-Wreturn-type]
  }
  ^
-4 warnings generated.
-/usr/bin/x86_64-pc-linux-gnu-ld: /var/tmp/portage/sci-libs/xgks-pmel-2.5.5/temp/conftest.o: in function `t':
-conftest.c:(.text+0x13): warning: the `sigstack' function is dangerous.  `sigaltstack' should be used instead.
-ignoreme: warning: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Wimplicit-int]
+1 warning and 3 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'
-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]
 t() { 
 ^
 int
 ignoreme: warning: non-void function does not return a value [-Wreturn-type]
  }
  ^
-4 warnings generated.
-/usr/bin/x86_64-pc-linux-gnu-ld: /var/tmp/portage/sci-libs/xgks-pmel-2.5.5/temp/conftest.o: in function `t':
-conftest.c:(.text+0x13): undefined reference to `bsdsigp'
-clang-15: error: linker command failed with exit code 1 (use -v to see invocation)
+1 warning and 3 errors generated.
 
-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: 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]
 t() { extern struct {int foo;} *atexit();
 ^
 int
@@ -548,32 +554,33 @@
 /usr/include/stdlib.h:602:12: note: previous declaration is here
 extern int atexit (void (*__func) (void)) __THROW __nonnull ((1));
            ^
-ignoreme: warning: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Wimplicit-int]
+1 warning and 3 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'
-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]
 t() { 
 ^
 int
 ignoreme: warning: non-void function does not return a value [-Wreturn-type]
  }
  ^
-4 warnings generated.
+1 warning and 3 errors generated.
 
-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'
-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]
 t() { extern struct {int foo;} *strerror();
 ^
 int
@@ -584,15 +591,16 @@
 /usr/include/string.h:419:14: note: previous declaration is here
 extern char *strerror (int __errnum) __THROW;
              ^
-ignoreme: warning: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Wimplicit-int]
+1 warning and 4 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'
-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]
 t() { extern struct {int foo;} *strstr();
 ^
 int
@@ -603,31 +611,32 @@
 /usr/include/string.h:350:14: note: previous declaration is here
 extern char *strstr (const char *__haystack, const char *__needle)
              ^
-ignoreme: warning: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Wimplicit-int]
+1 warning and 4 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'
-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]
 t() { 
 ^
 int
 ignoreme: warning: non-void function does not return a value [-Wreturn-type]
  }
  ^
-4 warnings generated.
-ignoreme: warning: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Wimplicit-int]
+1 warning and 3 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'
-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]
 t() { 
 ^
 int
@@ -638,16 +647,16 @@
 ignoreme: warning: non-void function does not return a value [-Wreturn-type]
  }
  ^
-5 warnings generated.
-ignoreme: warning: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Wimplicit-int]
+2 warnings and 3 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'
-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]
 t() { 
 ^
 int
@@ -658,17 +667,17 @@
 ignoreme: warning: non-void function does not return a value [-Wreturn-type]
  }
  ^
-5 warnings generated.
-ignoreme: warning: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Wimplicit-int]
+2 warnings and 3 errors generated.
+ignoreme: error: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Werror,-Wimplicit-int]
 main()
 ^
 int
-ignoreme: warning: call to undeclared function 'readsub'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
+ignoreme: error: call to undeclared function 'readsub'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration]
     return readsub((char*)NULL) ? 0 : 1;
            ^
-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]
 readsub(inpath)
 ^
 int
 ignoreme: warning: a function definition without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
-4 warnings generated.
+1 warning and 3 errors generated.