gh-110014: Include explicitly <unistd.h> header (#110155)

* Remove unused <locale.h> includes.
* Remove unused <fcntl.h> include in traceback.h.
* Remove redundant <assert.h> and <stddef.h> includes. They  are already
  included by "Python.h".
* Remove <object.h> include in faulthandler.c. Python.h already includes it.
* Add missing <stdbool.h> in pycore_pythread.h if HAVE_PTHREAD_STUBS
  is defined.
* Fix also warnings in pthread_stubs.h: don't redefine macros if they
  are already defined, like the __NEED_pthread_t macro.

1 files changed, 23 insertions, 7 deletions

diff --git a/Include/cpython/pthread_stubs.h b/Include/cpython/pthread_stubs.h
index d95ee03..5246968 100644
--- a/Include/cpython/pthread_stubs.h
+++ b/Include/cpython/pthread_stubs.h
@@ -21,13 +21,29 @@
 #ifdef __wasi__
 // WASI's bits/alltypes.h provides type definitions when __NEED_ is set.
 // The header file can be included multiple times.
-#  define __NEED_pthread_cond_t 1
-#  define __NEED_pthread_condattr_t 1
-#  define __NEED_pthread_mutex_t 1
-#  define __NEED_pthread_mutexattr_t 1
-#  define __NEED_pthread_key_t 1
-#  define __NEED_pthread_t 1
-#  define __NEED_pthread_attr_t 1
+//
+// <sys/types.h> may also define these macros.
+#  ifndef __NEED_pthread_cond_t
+#    define __NEED_pthread_cond_t 1
+#  endif
+#  ifndef __NEED_pthread_condattr_t
+#    define __NEED_pthread_condattr_t 1
+#  endif
+#  ifndef __NEED_pthread_mutex_t
+#    define __NEED_pthread_mutex_t 1
+#  endif
+#  ifndef __NEED_pthread_mutexattr_t
+#    define __NEED_pthread_mutexattr_t 1
+#  endif
+#  ifndef __NEED_pthread_key_t
+#    define __NEED_pthread_key_t 1
+#  endif
+#  ifndef __NEED_pthread_t
+#    define __NEED_pthread_t 1
+#  endif
+#  ifndef __NEED_pthread_attr_t
+#    define __NEED_pthread_attr_t 1
+#  endif
 #  include <bits/alltypes.h>
 #else
 typedef struct { void *__x; } pthread_cond_t;