--- /dev/null
+++ Libc/Libc-1583.0.14/exclave/_compat/_stdlib.h
@@ -0,0 +1,111 @@
+/*
+ * Copyright (c) 2022 Apple Inc. All rights reserved.
+ *
+ * @APPLE_LICENSE_HEADER_START@
+ *
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this
+ * file.
+ *
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ *
+ * @APPLE_LICENSE_HEADER_END@
+ */
+/*-
+ * Copyright (c) 1990, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)stdlib.h	8.5 (Berkeley) 5/19/95
+ */
+
+#ifndef __COMPAT__STDLIB_H_
+#define __COMPAT__STDLIB_H_
+
+#include <sys/cdefs.h>
+#include <stddef.h>
+
+#if __has_feature(assume_nonnull)
+_Pragma("clang assume_nonnull begin")
+#endif
+
+__BEGIN_DECLS
+
+double	 atof(const char *);
+double	 strtod(const char *, char * _Nullable * _Nullable);
+float	 strtof(const char *, char * _Nullable * _Nullable);
+long double
+	 strtold(const char *, char * _Nullable * _Nullable);
+
+#ifdef __BLOCKS__
+
+#if __has_attribute(noescape)
+#define __bsearch_noescape __attribute__((__noescape__))
+#else
+#define __bsearch_noescape
+#endif
+
+void	*bsearch_b(const void *__key, const void *__base, size_t __nel,
+	    size_t __width, int (^ _Nonnull __compar)(const void *, const void *) __bsearch_noescape);
+
+
+#if __has_attribute(noescape)
+#define __sort_noescape __attribute__((__noescape__))
+#else
+#define __sort_noescape
+#endif
+
+int	 heapsort_b(void *__base, size_t __nel, size_t __width,
+	    int (^ _Nonnull __compar)(const void *, const void *) __sort_noescape);
+
+int	 mergesort_b(void *__base, size_t __nel, size_t __width,
+	    int (^ _Nonnull __compar)(const void *, const void *) __sort_noescape);
+
+void	 qsort_b(void *__base, size_t __nel, size_t __width,
+	    int (^ _Nonnull __compar)(const void *, const void *) __sort_noescape);
+
+#endif /* __BLOCKS__ */
+
+__END_DECLS
+
+#if __has_feature(assume_nonnull)
+_Pragma("clang assume_nonnull end")
+#endif
+
+#endif /* __COMPAT__STDLIB_H_ */