--- Libc/Libc-1725.40.4/stdlib/FreeBSD/system.c
+++ Libc/Libc-825.24/stdlib/FreeBSD/system.c
@@ -27,9 +27,6 @@
  * SUCH DAMAGE.
  */
 
-#pragma clang diagnostic push
-#pragma clang diagnostic ignored "-Wstrict-prototypes"
-
 #if defined(LIBC_SCCS) && !defined(lint)
 static char sccsid[] = "@(#)system.c	8.1 (Berkeley) 6/4/93";
 #endif /* LIBC_SCCS and not lint */
@@ -52,25 +49,20 @@
 #include <crt_externs.h>
 #define environ (*_NSGetEnviron())
 
-#include <TargetConditionals.h>
-
 #if __DARWIN_UNIX03
 #include <pthread.h>
 
-#if !(TARGET_OS_IPHONE && (TARGET_OS_SIMULATOR || !TARGET_OS_IOS))
 static pthread_mutex_t __systemfn_mutex = PTHREAD_MUTEX_INITIALIZER;
-#endif
 extern int __unix_conforming;
+#ifdef VARIANT_CANCELABLE
+extern void _pthread_testcancel(pthread_t thread, int isconforming);
+#endif /* VARIANT_CANCELABLE */
 #endif /* __DARWIN_UNIX03 */
 
 int
 __system(command)
 	const char *command;
 {
-#if TARGET_OS_IPHONE && (TARGET_OS_SIMULATOR || !TARGET_OS_IOS)
-	// Don't abort() on iOS for now
-	LIBC_ABORT("system() is not supported on this platform.");
-#else
 	pid_t pid, savedpid;
 	int pstat, err;
 	struct sigaction ign, intact, quitact;
@@ -83,19 +75,15 @@
 	if (__unix_conforming == 0)
 		__unix_conforming = 1;
 #ifdef VARIANT_CANCELABLE
-	pthread_testcancel();
+	_pthread_testcancel(pthread_self(), 1);
 #endif /* VARIANT_CANCELABLE */
 #endif /* __DARWIN_UNIX03 */
 
 	if (!command) {		/* just checking... */
-#if TARGET_OS_IPHONE
-		return(0);
-#else
 		if (access(_PATH_BSHELL, F_OK) == -1)	/* if no sh or no access */
 			return(0);
 		else
 			return(1);
-#endif
 	}
 
 	if ((err = posix_spawnattr_init(&attr)) != 0) {
@@ -154,10 +142,7 @@
 	pthread_mutex_unlock(&__systemfn_mutex);
 #endif /* __DARWIN_UNIX03 */
 	return(pstat);
-#endif /* TARGET_OS_IPHONE && (TARGET_OS_SIMULATOR || !TARGET_OS_IOS) */
 }
 
 __weak_reference(__system, system);
 __weak_reference(__system, _system);
-
-#pragma clang diagnostic pop