diff --git a/src/kernel/libroot/posix/stdlib/Jamfile b/src/kernel/libroot/posix/stdlib/Jamfile
index 49546af0e8..cf11b211ac 100644
--- a/src/kernel/libroot/posix/stdlib/Jamfile
+++ b/src/kernel/libroot/posix/stdlib/Jamfile
@@ -1,7 +1,10 @@
 SubDir OBOS_TOP src kernel libroot posix stdlib ;
 
+UsePrivateHeaders libroot ;
+
 KernelMergeObject posix_stdlib.o :
 	abs.c
+	atfork.c
 	atof.c 
 	atoi.c 
 	bsearch.c
diff --git a/src/kernel/libroot/posix/stdlib/atfork.c b/src/kernel/libroot/posix/stdlib/atfork.c
new file mode 100644
index 0000000000..66a699c8a2
--- /dev/null
+++ b/src/kernel/libroot/posix/stdlib/atfork.c
@@ -0,0 +1,29 @@
+/* 
+** Copyright 2004, Axel Dörfler, axeld@pinc-software.de. All rights reserved.
+** Distributed under the terms of the Haiku License.
+*/
+
+
+#include <fork.h>
+
+#include <stdlib.h>
+#include <errno.h>
+
+
+/**	This is the BeOS compatible atfork() function; since it's not part of POSIX,
+ *	it should probably go away over time.
+ *	Use pthread_atfork() instead.
+ */
+
+int
+atfork(void (*function)(void))
+{
+	status_t status = __register_atfork(NULL, NULL, function);
+	if (status < B_OK) {
+		errno = status;
+		return -1;
+	}
+
+	return 0;
+}
+