Make pow() conform to standard definition

libc/log/die.c

@@ -17,12 +17,9 @@
 │ PERFORMANCE OF THIS SOFTWARE.                                                │
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/bits/bits.h"
-#include "libc/bits/weaken.h"
 #include "libc/dce.h"
 #include "libc/log/backtrace.internal.h"
 #include "libc/log/log.h"
-#include "libc/runtime/runtime.h"
-#include "libc/stdio/stdio.h"
 
 /**
  * Aborts process after printing a backtrace.
@@ -32,13 +29,10 @@
 relegated wontreturn void __die(void) {
   static bool once;
   if (cmpxchg(&once, false, true)) {
-    if (weaken(fflush)) {
-      weaken(fflush)(NULL);
-    }
     if (!IsTiny()) {
       if (IsDebuggerPresent(false)) DebugBreak();
       ShowBacktrace(2, NULL);
     }
   }
-  _exit(77);
+  exit(77);
 }

libc/log/onkill.c

@@ -20,6 +20,8 @@
 #include "libc/calls/calls.h"
 #include "libc/calls/sigbits.h"
 #include "libc/calls/struct/sigaction.h"
+#include "libc/calls/struct/siginfo.h"
+#include "libc/calls/ucontext.h"
 #include "libc/dce.h"
 #include "libc/log/log.h"
 #include "libc/macros.internal.h"
@@ -34,9 +36,6 @@
  * @see also libc/oncrash.c
  */
 
-struct ucontext;
-struct siginfo;
-
 static const int sigs[] = {
     SIGHUP, /* hangup aka ctrl_close_event */
     SIGINT, /* ctrl+c aka ^C aka ETX aka \003 aka ♥ */