diff --git a/Makefile b/Makefile
index f1f3b9717..dd6eebf26 100644
--- a/Makefile
+++ b/Makefile
@@ -441,6 +441,7 @@ COSMOPOLITAN_OBJECTS =			\
 	LIBC_TIME			\
 	THIRD_PARTY_MUSL		\
 	THIRD_PARTY_ZLIB_GZ		\
+	THIRD_PARTY_LIBUNWIND		\
 	LIBC_STDIO			\
 	THIRD_PARTY_GDTOA		\
 	THIRD_PARTY_REGEX		\
diff --git a/libc/runtime/unwind.c b/libc/runtime/unwind.c
deleted file mode 100644
index fe4987cf5..000000000
--- a/libc/runtime/unwind.c
+++ /dev/null
@@ -1,37 +0,0 @@
-/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
-│ vi: set et ft=c ts=2 sts=2 sw=2 fenc=utf-8                               :vi │
-╞══════════════════════════════════════════════════════════════════════════════╡
-│ Copyright 2022 Justine Alexandra Roberts Tunney                              │
-│                                                                              │
-│ Permission to use, copy, modify, and/or distribute this software for         │
-│ any purpose with or without fee is hereby granted, provided that the         │
-│ above copyright notice and this permission notice appear in all copies.      │
-│                                                                              │
-│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL                │
-│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED                │
-│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE             │
-│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL         │
-│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR        │
-│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER               │
-│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR             │
-│ PERFORMANCE OF THIS SOFTWARE.                                                │
-╚─────────────────────────────────────────────────────────────────────────────*/
-#include "libc/runtime/unwind.h"
-
-// temporary stubs for libunwind
-
-uintptr_t _Unwind_GetCFA(struct _Unwind_Context *ctx) {
-  return 0;
-}
-
-uintptr_t _Unwind_GetIP(struct _Unwind_Context *ctx) {
-  return 0;
-}
-
-_Unwind_Reason_Code _Unwind_Backtrace(_Unwind_Trace_Fn fn, void *arg) {
-  return _URC_NORMAL_STOP;
-}
-
-void *_Unwind_FindEnclosingFunction(void *arg) {
-  return NULL;
-}
diff --git a/libc/runtime/unwind.h b/libc/runtime/unwind.h
deleted file mode 100644
index 4570446f6..000000000
--- a/libc/runtime/unwind.h
+++ /dev/null
@@ -1,40 +0,0 @@
-#ifndef COSMOPOLITAN_LIBC_RUNTIME_UNWIND_H_
-#define COSMOPOLITAN_LIBC_RUNTIME_UNWIND_H_
-
-#define UNW_TDEP_CURSOR_LEN 127
-
-COSMOPOLITAN_C_START_
-
-typedef enum {
-  _URC_NO_REASON = 0,
-  _URC_FOREIGN_EXCEPTION_CAUGHT = 1,
-  _URC_FATAL_PHASE2_ERROR = 2,
-  _URC_FATAL_PHASE1_ERROR = 3,
-  _URC_NORMAL_STOP = 4,
-  _URC_END_OF_STACK = 5,
-  _URC_HANDLER_FOUND = 6,
-  _URC_INSTALL_CONTEXT = 7,
-  _URC_CONTINUE_UNWIND = 8
-} _Unwind_Reason_Code;
-
-typedef uint64_t unw_word_t;
-
-typedef struct unw_cursor {
-  unw_word_t opaque[UNW_TDEP_CURSOR_LEN];
-} unw_cursor_t;
-
-struct _Unwind_Context {
-  unw_cursor_t cursor;
-  int end_of_stack;
-};
-
-typedef _Unwind_Reason_Code (*_Unwind_Trace_Fn)(struct _Unwind_Context *,
-                                                void *);
-
-uintptr_t _Unwind_GetCFA(struct _Unwind_Context *);
-uintptr_t _Unwind_GetIP(struct _Unwind_Context *);
-_Unwind_Reason_Code _Unwind_Backtrace(_Unwind_Trace_Fn, void *);
-void *_Unwind_FindEnclosingFunction(void *);
-
-COSMOPOLITAN_C_END_
-#endif /* COSMOPOLITAN_LIBC_RUNTIME_UNWIND_H_ */