diff --git a/include/unistd.h b/include/unistd.h
index 693c54dc8ab5a3d2c1ab2c8cb613009778b2b39b..e4e3ac59e4f8d771ce279fc66964d004f2de7f05 100644
--- a/include/unistd.h
+++ b/include/unistd.h
@@ -168,7 +168,6 @@ char *getusershell(void);
 #endif
 
 #ifdef _GNU_SOURCE
-pid_t forkall(void);
 int setresuid(uid_t, uid_t, uid_t);
 int setresgid(gid_t, gid_t, gid_t);
 int getresuid(uid_t *, uid_t *, uid_t *);
diff --git a/src/internal/libc.h b/src/internal/libc.h
index 78fca47fccd53eb60eb4745442ba2608341e8e7b..0ec3691e4f512f2b21dda5f238c0584b559e7cc8 100644
--- a/src/internal/libc.h
+++ b/src/internal/libc.h
@@ -52,7 +52,6 @@ void __unlockfile(FILE *);
 #define UNLOCK(x) (libc.threads_minus_1 ? (__unlock(x),1) : ((void)(x),1))
 
 void __synccall(void (*)(void *), void *);
-void __synccall_wait(void);
 int __setxid(int, int, int, int);
 
 extern char **__environ;
diff --git a/src/thread/forkall.c b/src/thread/forkall.c
deleted file mode 100644
index 6810ea50f0aed0200f7158d77b980b3337b3fa79..0000000000000000000000000000000000000000
--- a/src/thread/forkall.c
+++ /dev/null
@@ -1,68 +0,0 @@
-#if 0
-#include "pthread_impl.h"
-#include <setjmp.h>
-
-struct thread {
-	struct thread *next;
-	pthread_t td;
-	jmp_buf jb;
-	void *tmp, *stack;
-};
-
-struct ctx {
-	struct thread *list;
-	pthread_t caller;
-	pid_t pid;
-	size_t cnt;
-	pthread_barrier_t barrier;
-};
-
-static void restart_thread(pthread_t self)
-{
-	struct thread *t = self->start_arg;
-	self->start_arg = t->tmp;
-	self->pid = getpid();
-	longjmp(t->jb, 1);
-}
-
-static void do_forkall(void *p)
-{
-	struct ctx *c = p, *volatile cv = c;
-	char tmpstack[2048];
-	struct thread *tp, t = {
-		.td = __pthread_self(),
-		.next = c->list,
-		.stack = tmpstack+1024
-	};
-
-	if (t.td != c->caller) {
-		c->cnt++;
-		t.tmp = t.td->start_arg;
-		t.td->start_arg = &t;
-		if (setjmp(t.jb)) {
-			c = cv;
-			if (c->pid) return;
-			pthread_barrier_wait(&c->barrier);
-			return;
-		}
-		c->list = &t;
-		__synccall_wait();
-		return;
-	}
-	c->pid = syscall(SYS_fork);
-	if (c->pid) return;
-
-	pthread_barrier_init(&c->barrier, 0, c->cnt);
-	for (tp=c->list; tp; tp=tp->next)
-		if (__uniclone(tp->stack, restart_thread, tp->td) < 0)
-			_exit(127);
-	pthread_barrier_wait(&c->barrier);
-}
-
-pid_t forkall()
-{
-	struct ctx c = { .caller = pthread_self() };
-	__synccall(do_forkall, &c);
-	return c.pid;
-}
-#endif
diff --git a/src/thread/synccall.c b/src/thread/synccall.c
index 2cd25e4bb2b84315ca4adb9c562d4592eebcb55a..1520b3b40b582855e27b394120500fb32ddb5d0a 100644
--- a/src/thread/synccall.c
+++ b/src/thread/synccall.c
@@ -47,14 +47,6 @@ static void handler(int sig, siginfo_t *si, void *ctx)
 	errno = old_errno;
 }
 
-void __synccall_wait()
-{
-	struct chain *ch = cur;
-	sem_post(&ch->sem2);
-	while (sem_wait(&ch->sem));
-	sem_post(&ch->sem);
-}
-
 void __synccall(void (*func)(void *), void *ctx)
 {
 	pthread_t self;