--- Libc/Libc-1725.40.4/tests/quick_exit.c
+++ /dev/null
@@ -1,65 +0,0 @@
-#include <sys/wait.h>
-
-#include <stdlib.h>
-#include <unistd.h>
-
-#include <darwintest.h>
-
-T_GLOBAL_META(T_META_RUN_CONCURRENTLY(true));
-
-static void func_a(void)
-{
-	if (write(STDOUT_FILENO, "a", 1) != 1)
-		_Exit(1);
-}
-
-static void func_b(void)
-{
-	if (write(STDOUT_FILENO, "b", 1) != 1)
-		_Exit(1);
-}
-
-static void func_c(void)
-{
-	if (write(STDOUT_FILENO, "c", 1) != 1)
-		_Exit(1);
-}
-
-static void child(void)
-{
-	// this will be received by the parent
-	printf("hello, ");
-	fflush(stdout);
-	// this won't, because quick_exit() does not flush
-	printf("world");
-	// these will be called in reverse order, producing "abc"
-	if (at_quick_exit(func_c) != 0 ||
-	    at_quick_exit(func_b) != 0 ||
-	    at_quick_exit(func_a) != 0)
-		_Exit(1);
-	quick_exit(0);
-}
-
-T_DECL(quick_exit, "Test quick_exit and at_quick_exit")
-{
-	char buf[100] = "";
-	ssize_t len;
-	int p[2], wstatus = 0;
-	pid_t pid;
-
-	T_ASSERT_POSIX_SUCCESS(pipe(p), NULL);
-	pid = fork();
-	if (pid == 0) {
-		if (dup2(p[1], STDOUT_FILENO) < 0)
-			_Exit(1);
-		(void)close(p[1]);
-		(void)close(p[0]);
-		child();
-		_Exit(1);
-	}
-	T_ASSERT_POSIX_SUCCESS(pid, "expect fork() to succeed");
-	T_EXPECT_EQ(waitpid(pid, &wstatus, 0), pid, "expect to collect child process");
-	T_EXPECT_EQ(wstatus, 0, "expect child to exit cleanly");
-	T_EXPECT_POSIX_SUCCESS(len = read(p[0], buf, sizeof(buf)), NULL);
-	T_EXPECT_EQ_STR(buf, "hello, abc", NULL);
-}