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Issue #11863: Remove support for legacy systems deprecated in Python 3.2 

(following PEP 11).  These systems are systems using Mach C Threads,
SunOS lightweight processes, GNU pth threads and IRIX threads.
This commit is contained in:
Antoine Pitrou 2011-07-08 23:47:50 +02:00
parent 022ae22cc6
commit 370092071b
11 changed files with 315 additions and 1009 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
Include/Python.h
View File

@ -151,11 +151,6 @@ PyAPI_FUNC(PyObject*) _Py_Mangle(PyObject *p, PyObject *name);
#define Py_file_input 257
#define Py_eval_input 258
#ifdef HAVE_PTH
/* GNU pth user-space thread support */
#include <pth.h>
#endif
/* Define macros for inline documentation. */
#define PyDoc_VAR(name) static char name[]
#define PyDoc_STRVAR(name,str) PyDoc_VAR(name) = PyDoc_STR(str)

4
Misc/NEWS
View File

@ -948,6 +948,10 @@ Library
Build
-----
- Issue #11863: Remove support for legacy systems deprecated in Python 3.2
(following PEP 11). These systems are systems using Mach C Threads,
SunOS lightweight processes, GNU pth threads and IRIX threads.
- Issue #8746: Correct faulty configure checks so that os.chflags() and
os.lchflags() are once again built on systems that support these
functions (*BSD and OS X). Also add new stat file flags for OS X

3
PC/pyconfig.h
View File

@ -711,9 +711,6 @@ Py_NO_ENABLE_SHARED to find out. Also support MS_NO_COREDLL for b/w compat */
/* Define if you have the <sys/utsname.h> header file. */
/* #define HAVE_SYS_UTSNAME_H 1 */
/* Define if you have the <thread.h> header file. */
/* #undef HAVE_THREAD_H */
/* Define if you have the <unistd.h> header file. */
/* #define HAVE_UNISTD_H 1 */

43
Python/thread.c
View File

@ -26,18 +26,6 @@
#ifndef _POSIX_THREADS
#ifdef __sgi
#define SGI_THREADS
#endif
#ifdef HAVE_THREAD_H
#define SOLARIS_THREADS
#endif
#if defined(sun) && !defined(SOLARIS_THREADS)
#define SUN_LWP
#endif
/* Check if we're running on HP-UX and _SC_THREADS is defined. If so, then
enough of the Posix threads package is implemented to support python
threads.
@ -93,37 +81,11 @@ PyThread_init_thread(void)
or the size specified by the THREAD_STACK_SIZE macro. */
static size_t _pythread_stacksize = 0;
#ifdef SGI_THREADS
#error SGI Irix threads are now unsupported, and code will be removed in 3.3.
#include "thread_sgi.h"
#endif
#ifdef SOLARIS_THREADS
#define PYTHREAD_NAME "solaris"
#include "thread_solaris.h"
#endif
#ifdef SUN_LWP
#error SunOS lightweight processes are now unsupported, and code will be removed in 3.3.
#include "thread_lwp.h"
#endif
#ifdef HAVE_PTH
#error GNU pth threads are now unsupported, and code will be removed in 3.3.
#include "thread_pth.h"
#undef _POSIX_THREADS
#endif
#ifdef _POSIX_THREADS
#define PYTHREAD_NAME "pthread"
#include "thread_pthread.h"
#endif
#ifdef C_THREADS
#error Mach C Threads are now unsupported, and code will be removed in 3.3.
#include "thread_cthread.h"
#endif
#ifdef NT_THREADS
#define PYTHREAD_NAME "nt"
#include "thread_nt.h"
@ -134,11 +96,6 @@ static size_t _pythread_stacksize = 0;
#include "thread_os2.h"
#endif
#ifdef PLAN9_THREADS
#define PYTHREAD_NAME "plan9"
#include "thread_plan9.h"
#endif
/*
#ifdef FOOBAR_THREADS
#include "thread_foobar.h"

112
Python/thread_cthread.h
View File

@ -1,112 +0,0 @@
#ifdef MACH_C_THREADS
#include <mach/cthreads.h>
#endif
#ifdef HURD_C_THREADS
#include <cthreads.h>
#endif
/*
* Initialization.
*/
static void
PyThread__init_thread(void)
{
#ifndef HURD_C_THREADS
/* Roland McGrath said this should not be used since this is
done while linking to threads */
cthread_init();
#else
/* do nothing */
;
#endif
}
/*
* Thread support.
*/
long
PyThread_start_new_thread(void (*func)(void *), void *arg)
{
int success = 0; /* init not needed when SOLARIS_THREADS and */
/* C_THREADS implemented properly */
dprintf(("PyThread_start_new_thread called\n"));
if (!initialized)
PyThread_init_thread();
/* looks like solaris detaches the thread to never rejoin
* so well do it here
*/
cthread_detach(cthread_fork((cthread_fn_t) func, arg));
return success < 0 ? -1 : 0;
}
long
PyThread_get_thread_ident(void)
{
if (!initialized)
PyThread_init_thread();
return (long) cthread_self();
}
void
PyThread_exit_thread(void)
{
dprintf(("PyThread_exit_thread called\n"));
if (!initialized)
exit(0);
cthread_exit(0);
}
/*
* Lock support.
*/
PyThread_type_lock
PyThread_allocate_lock(void)
{
mutex_t lock;
dprintf(("PyThread_allocate_lock called\n"));
if (!initialized)
PyThread_init_thread();
lock = mutex_alloc();
if (mutex_init(lock)) {
perror("mutex_init");
free((void *) lock);
lock = 0;
}
dprintf(("PyThread_allocate_lock() -> %p\n", lock));
return (PyThread_type_lock) lock;
}
void
PyThread_free_lock(PyThread_type_lock lock)
{
dprintf(("PyThread_free_lock(%p) called\n", lock));
mutex_free(lock);
}
int
PyThread_acquire_lock(PyThread_type_lock lock, int waitflag)
{
int success = FALSE;
dprintf(("PyThread_acquire_lock(%p, %d) called\n", lock, waitflag));
if (waitflag) { /* blocking */
mutex_lock((mutex_t)lock);
success = TRUE;
} else { /* non blocking */
success = mutex_try_lock((mutex_t)lock);
}
dprintf(("PyThread_acquire_lock(%p, %d) -> %d\n", lock, waitflag, success));
return success;
}
void
PyThread_release_lock(PyThread_type_lock lock)
{
dprintf(("PyThread_release_lock(%p) called\n", lock));
mutex_unlock((mutex_t )lock);
}

113
Python/thread_lwp.h
View File

@ -1,113 +0,0 @@
#include <stdlib.h>
#include <lwp/lwp.h>
#include <lwp/stackdep.h>
#define STACKSIZE 1000 /* stacksize for a thread */
#define NSTACKS 2 /* # stacks to be put in cache initially */
struct lock {
int lock_locked;
cv_t lock_condvar;
mon_t lock_monitor;
};
/*
* Initialization.
*/
static void PyThread__init_thread(void)
{
lwp_setstkcache(STACKSIZE, NSTACKS);
}
/*
* Thread support.
*/
long PyThread_start_new_thread(void (*func)(void *), void *arg)
{
thread_t tid;
int success;
dprintf(("PyThread_start_new_thread called\n"));
if (!initialized)
PyThread_init_thread();
success = lwp_create(&tid, func, MINPRIO, 0, lwp_newstk(), 1, arg);
return success < 0 ? -1 : 0;
}
long PyThread_get_thread_ident(void)
{
thread_t tid;
if (!initialized)
PyThread_init_thread();
if (lwp_self(&tid) < 0)
return -1;
return tid.thread_id;
}
void PyThread_exit_thread(void)
{
dprintf(("PyThread_exit_thread called\n"));
if (!initialized)
exit(0);
lwp_destroy(SELF);
}
/*
* Lock support.
*/
PyThread_type_lock PyThread_allocate_lock(void)
{
struct lock *lock;
extern char *malloc(size_t);
dprintf(("PyThread_allocate_lock called\n"));
if (!initialized)
PyThread_init_thread();
lock = (struct lock *) malloc(sizeof(struct lock));
lock->lock_locked = 0;
(void) mon_create(&lock->lock_monitor);
(void) cv_create(&lock->lock_condvar, lock->lock_monitor);
dprintf(("PyThread_allocate_lock() -> %p\n", lock));
return (PyThread_type_lock) lock;
}
void PyThread_free_lock(PyThread_type_lock lock)
{
dprintf(("PyThread_free_lock(%p) called\n", lock));
mon_destroy(((struct lock *) lock)->lock_monitor);
free((char *) lock);
}
int PyThread_acquire_lock(PyThread_type_lock lock, int waitflag)
{
int success;
dprintf(("PyThread_acquire_lock(%p, %d) called\n", lock, waitflag));
success = 0;
(void) mon_enter(((struct lock *) lock)->lock_monitor);
if (waitflag)
while (((struct lock *) lock)->lock_locked)
cv_wait(((struct lock *) lock)->lock_condvar);
if (!((struct lock *) lock)->lock_locked) {
success = 1;
((struct lock *) lock)->lock_locked = 1;
}
cv_broadcast(((struct lock *) lock)->lock_condvar);
mon_exit(((struct lock *) lock)->lock_monitor);
dprintf(("PyThread_acquire_lock(%p, %d) -> %d\n", lock, waitflag, success));
return success;
}
void PyThread_release_lock(PyThread_type_lock lock)
{
dprintf(("PyThread_release_lock(%p) called\n", lock));
(void) mon_enter(((struct lock *) lock)->lock_monitor);
((struct lock *) lock)->lock_locked = 0;
cv_broadcast(((struct lock *) lock)->lock_condvar);
mon_exit(((struct lock *) lock)->lock_monitor);
}

259
Python/thread_sgi.h
View File

@ -1,259 +0,0 @@
#include <stdlib.h>
#include <stdio.h>
#include <signal.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <sys/prctl.h>
#include <ulocks.h>
#include <errno.h>
#define HDR_SIZE 2680 /* sizeof(ushdr_t) */
#define MAXPROC 100 /* max # of threads that can be started */
static usptr_t *shared_arena;
static ulock_t count_lock; /* protection for some variables */
static ulock_t wait_lock; /* lock used to wait for other threads */
static int waiting_for_threads; /* protected by count_lock */
static int nthreads; /* protected by count_lock */
static int exit_status;
static int exiting; /* we're already exiting (for maybe_exit) */
static pid_t my_pid; /* PID of main thread */
static struct pidlist {
pid_t parent;
pid_t child;
} pidlist[MAXPROC]; /* PIDs of other threads; protected by count_lock */
static int maxpidindex; /* # of PIDs in pidlist */
/*
* Initialization.
*/
static void PyThread__init_thread(void)
{
#ifdef USE_DL
long addr, size;
#endif /* USE_DL */
#ifdef USE_DL
if ((size = usconfig(CONF_INITSIZE, 64*1024)) < 0)
perror("usconfig - CONF_INITSIZE (check)");
if (usconfig(CONF_INITSIZE, size) < 0)
perror("usconfig - CONF_INITSIZE (reset)");
addr = (long) dl_getrange(size + HDR_SIZE);
dprintf(("trying to use addr %p-%p for shared arena\n", addr, addr+size));
errno = 0;
if ((addr = usconfig(CONF_ATTACHADDR, addr)) < 0 && errno != 0)
perror("usconfig - CONF_ATTACHADDR (set)");
#endif /* USE_DL */
if (usconfig(CONF_INITUSERS, 16) < 0)
perror("usconfig - CONF_INITUSERS");
my_pid = getpid(); /* so that we know which is the main thread */
if (usconfig(CONF_ARENATYPE, US_SHAREDONLY) < 0)
perror("usconfig - CONF_ARENATYPE");
usconfig(CONF_LOCKTYPE, US_DEBUG); /* XXX */
#ifdef Py_DEBUG
if (thread_debug & 4)
usconfig(CONF_LOCKTYPE, US_DEBUGPLUS);
else if (thread_debug & 2)
usconfig(CONF_LOCKTYPE, US_DEBUG);
#endif /* Py_DEBUG */
if ((shared_arena = usinit(tmpnam(0))) == 0)
perror("usinit");
#ifdef USE_DL
if (usconfig(CONF_ATTACHADDR, addr) < 0) /* reset address */
perror("usconfig - CONF_ATTACHADDR (reset)");
#endif /* USE_DL */
if ((count_lock = usnewlock(shared_arena)) == NULL)
perror("usnewlock (count_lock)");
(void) usinitlock(count_lock);
if ((wait_lock = usnewlock(shared_arena)) == NULL)
perror("usnewlock (wait_lock)");
dprintf(("arena start: %p, arena size: %ld\n", shared_arena, (long) usconfig(CONF_GETSIZE, shared_arena)));
}
/*
* Thread support.
*/
static void clean_threads(void)
{
int i, j;
pid_t mypid, pid;
/* clean up any exited threads */
mypid = getpid();
i = 0;
while (i < maxpidindex) {
if (pidlist[i].parent == mypid && (pid = pidlist[i].child) > 0) {
pid = waitpid(pid, 0, WNOHANG);
if (pid > 0) {
/* a thread has exited */
pidlist[i] = pidlist[--maxpidindex];
/* remove references to children of dead proc */
for (j = 0; j < maxpidindex; j++)
if (pidlist[j].parent == pid)
pidlist[j].child = -1;
continue; /* don't increment i */
}
}
i++;
}
/* clean up the list */
i = 0;
while (i < maxpidindex) {
if (pidlist[i].child == -1) {
pidlist[i] = pidlist[--maxpidindex];
continue; /* don't increment i */
}
i++;
}
}
long PyThread_start_new_thread(void (*func)(void *), void *arg)
{
#ifdef USE_DL
long addr, size;
static int local_initialized = 0;
#endif /* USE_DL */
int success = 0; /* init not needed when SOLARIS_THREADS and */
/* C_THREADS implemented properly */
dprintf(("PyThread_start_new_thread called\n"));
if (!initialized)
PyThread_init_thread();
switch (ussetlock(count_lock)) {
case 0: return 0;
case -1: perror("ussetlock (count_lock)");
}
if (maxpidindex >= MAXPROC)
success = -1;
else {
#ifdef USE_DL
if (!local_initialized) {
if ((size = usconfig(CONF_INITSIZE, 64*1024)) < 0)
perror("usconfig - CONF_INITSIZE (check)");
if (usconfig(CONF_INITSIZE, size) < 0)
perror("usconfig - CONF_INITSIZE (reset)");
addr = (long) dl_getrange(size + HDR_SIZE);
dprintf(("trying to use addr %p-%p for sproc\n",
addr, addr+size));
errno = 0;
if ((addr = usconfig(CONF_ATTACHADDR, addr)) < 0 &&
errno != 0)
perror("usconfig - CONF_ATTACHADDR (set)");
}
#endif /* USE_DL */
clean_threads();
if ((success = sproc(func, PR_SALL, arg)) < 0)
perror("sproc");
#ifdef USE_DL
if (!local_initialized) {
if (usconfig(CONF_ATTACHADDR, addr) < 0)
/* reset address */
perror("usconfig - CONF_ATTACHADDR (reset)");
local_initialized = 1;
}
#endif /* USE_DL */
if (success >= 0) {
nthreads++;
pidlist[maxpidindex].parent = getpid();
pidlist[maxpidindex++].child = success;
dprintf(("pidlist[%d] = %d\n",
maxpidindex-1, success));
}
}
if (usunsetlock(count_lock) < 0)
perror("usunsetlock (count_lock)");
return success;
}
long PyThread_get_thread_ident(void)
{
return getpid();
}
void PyThread_exit_thread(void)
{
dprintf(("PyThread_exit_thread called\n"));
if (!initialized)
exit(0);
if (ussetlock(count_lock) < 0)
perror("ussetlock (count_lock)");
nthreads--;
if (getpid() == my_pid) {
/* main thread; wait for other threads to exit */
exiting = 1;
waiting_for_threads = 1;
if (ussetlock(wait_lock) < 0)
perror("ussetlock (wait_lock)");
for (;;) {
if (nthreads < 0) {
dprintf(("really exit (%d)\n", exit_status));
exit(exit_status);
}
if (usunsetlock(count_lock) < 0)
perror("usunsetlock (count_lock)");
dprintf(("waiting for other threads (%d)\n", nthreads));
if (ussetlock(wait_lock) < 0)
perror("ussetlock (wait_lock)");
if (ussetlock(count_lock) < 0)
perror("ussetlock (count_lock)");
}
}
/* not the main thread */
if (waiting_for_threads) {
dprintf(("main thread is waiting\n"));
if (usunsetlock(wait_lock) < 0)
perror("usunsetlock (wait_lock)");
}
if (usunsetlock(count_lock) < 0)
perror("usunsetlock (count_lock)");
_exit(0);
}
/*
* Lock support.
*/
PyThread_type_lock PyThread_allocate_lock(void)
{
ulock_t lock;
dprintf(("PyThread_allocate_lock called\n"));
if (!initialized)
PyThread_init_thread();
if ((lock = usnewlock(shared_arena)) == NULL)
perror("usnewlock");
(void) usinitlock(lock);
dprintf(("PyThread_allocate_lock() -> %p\n", lock));
return (PyThread_type_lock) lock;
}
void PyThread_free_lock(PyThread_type_lock lock)
{
dprintf(("PyThread_free_lock(%p) called\n", lock));
usfreelock((ulock_t) lock, shared_arena);
}
int PyThread_acquire_lock(PyThread_type_lock lock, int waitflag)
{
int success;
dprintf(("PyThread_acquire_lock(%p, %d) called\n", lock, waitflag));
errno = 0; /* clear it just in case */
if (waitflag)
success = ussetlock((ulock_t) lock);
else
success = uscsetlock((ulock_t) lock, 1); /* Try it once */
if (success < 0)
perror(waitflag ? "ussetlock" : "uscsetlock");
dprintf(("PyThread_acquire_lock(%p, %d) -> %d\n", lock, waitflag, success));
return success;
}
void PyThread_release_lock(PyThread_type_lock lock)
{
dprintf(("PyThread_release_lock(%p) called\n", lock));
if (usunsetlock((ulock_t) lock) < 0)
perror("usunsetlock");
}

130
Python/thread_solaris.h
View File

@ -1,130 +0,0 @@
#include <stdlib.h>
#include <stdio.h>
#include <errno.h>
#include </usr/include/thread.h>
#undef _POSIX_THREADS
/*
* Initialization.
*/
static void PyThread__init_thread(void)
{
}
/*
* Thread support.
*/
struct func_arg {
void (*func)(void *);
void *arg;
};
static void *
new_func(void *funcarg)
{
void (*func)(void *);
void *arg;
func = ((struct func_arg *) funcarg)->func;
arg = ((struct func_arg *) funcarg)->arg;
free(funcarg);
(*func)(arg);
return 0;
}
long
PyThread_start_new_thread(void (*func)(void *), void *arg)
{
thread_t tid;
struct func_arg *funcarg;
dprintf(("PyThread_start_new_thread called\n"));
if (!initialized)
PyThread_init_thread();
funcarg = (struct func_arg *) malloc(sizeof(struct func_arg));
funcarg->func = func;
funcarg->arg = arg;
if (thr_create(0, 0, new_func, funcarg,
THR_DETACHED | THR_NEW_LWP, &tid)) {
perror("thr_create");
free((void *) funcarg);
return -1;
}
return tid;
}
long
PyThread_get_thread_ident(void)
{
if (!initialized)
PyThread_init_thread();
return thr_self();
}
void
PyThread_exit_thread(void)
{
dprintf(("PyThread_exit_thread called\n"));
if (!initialized)
exit(0);
thr_exit(0);
}
/*
* Lock support.
*/
PyThread_type_lock
PyThread_allocate_lock(void)
{
mutex_t *lock;
dprintf(("PyThread_allocate_lock called\n"));
if (!initialized)
PyThread_init_thread();
lock = (mutex_t *) malloc(sizeof(mutex_t));
if (mutex_init(lock, USYNC_THREAD, 0)) {
perror("mutex_init");
free((void *) lock);
lock = 0;
}
dprintf(("PyThread_allocate_lock() -> %p\n", lock));
return (PyThread_type_lock) lock;
}
void
PyThread_free_lock(PyThread_type_lock lock)
{
dprintf(("PyThread_free_lock(%p) called\n", lock));
mutex_destroy((mutex_t *) lock);
free((void *) lock);
}
int
PyThread_acquire_lock(PyThread_type_lock lock, int waitflag)
{
int success;
dprintf(("PyThread_acquire_lock(%p, %d) called\n", lock, waitflag));
if (waitflag)
success = mutex_lock((mutex_t *) lock);
else
success = mutex_trylock((mutex_t *) lock);
if (success < 0)
perror(waitflag ? "mutex_lock" : "mutex_trylock");
else
success = !success; /* solaris does it the other way round */
dprintf(("PyThread_acquire_lock(%p, %d) -> %d\n", lock, waitflag, success));
return success;
}
void
PyThread_release_lock(PyThread_type_lock lock)
{
dprintf(("PyThread_release_lock(%p) called\n", lock));
if (mutex_unlock((mutex_t *) lock))
perror("mutex_unlock");
}

627
configure vendored
View File

File diff suppressed because it is too large Load Diff

16
configure.in
View File

@ -1301,7 +1301,7 @@ AC_HEADER_STDC
AC_CHECK_HEADERS(asm/types.h conio.h curses.h direct.h dlfcn.h errno.h \
fcntl.h grp.h \
ieeefp.h io.h langinfo.h libintl.h ncurses.h poll.h process.h pthread.h \
shadow.h signal.h stdint.h stropts.h termios.h thread.h \
shadow.h signal.h stdint.h stropts.h termios.h \
unistd.h utime.h \
sys/audioio.h sys/bsdtty.h sys/epoll.h sys/event.h sys/file.h sys/loadavg.h \
sys/lock.h sys/mkdev.h sys/modem.h \
@ -2044,7 +2044,6 @@ AC_SUBST(LDLAST)
# Templates for things AC_DEFINEd more than once.
# For a single AC_DEFINE, no template is needed.
AH_TEMPLATE(C_THREADS,[Define if you have the Mach cthreads package])
AH_TEMPLATE(_REENTRANT,
[Define to force use of thread-safe errno, h_errno, and other functions])
AH_TEMPLATE(WITH_THREAD,
@ -2126,17 +2125,6 @@ yes
AC_MSG_RESULT($unistd_defines_pthreads)
AC_DEFINE(_REENTRANT)
AC_CHECK_HEADER(cthreads.h, [AC_DEFINE(WITH_THREAD)
AC_DEFINE(C_THREADS)
AC_DEFINE(HURD_C_THREADS, 1,
[Define if you are using Mach cthreads directly under /include])
LIBS="$LIBS -lthreads"
THREADOBJ="Python/thread.o"],[
AC_CHECK_HEADER(mach/cthreads.h, [AC_DEFINE(WITH_THREAD)
AC_DEFINE(C_THREADS)
AC_DEFINE(MACH_C_THREADS, 1,
[Define if you are using Mach cthreads under mach /])
THREADOBJ="Python/thread.o"],[
# Just looking for pthread_create in libpthread is not enough:
# on HP/UX, pthread.h renames pthread_create to a different symbol name.
# So we really have to include pthread.h, and then link.
@ -2172,7 +2160,7 @@ pthread_create (NULL, NULL, start_routine, NULL)]])],[
LIBS="$LIBS -lcma"
THREADOBJ="Python/thread.o"],[
USE_THREAD_MODULE="#"])
])])])])])])])
])])])])])
AC_CHECK_LIB(mpc, usconfig, [AC_DEFINE(WITH_THREAD)
LIBS="$LIBS -lmpc"

12
pyconfig.h.in
View File

@ -12,9 +12,6 @@
support for AIX C++ shared extension modules. */
#undef AIX_GENUINE_CPLUSPLUS
/* Define if you have the Mach cthreads package */
#undef C_THREADS
/* Define if C doubles are 64-bit IEEE 754 binary format, stored in ARM
mixed-endian order (byte order 45670123) */
#undef DOUBLE_IS_ARM_MIXED_ENDIAN_IEEE754
@ -948,9 +945,6 @@
/* Define to 1 if you have the `tgamma' function. */
#undef HAVE_TGAMMA
/* Define to 1 if you have the <thread.h> header file. */
#undef HAVE_THREAD_H
/* Define to 1 if you have the `timegm' function. */
#undef HAVE_TIMEGM
@ -1049,15 +1043,9 @@
/* Define to 1 if you have the `_getpty' function. */
#undef HAVE__GETPTY
/* Define if you are using Mach cthreads directly under /include */
#undef HURD_C_THREADS
/* Define if log1p(-0.) is 0. rather than -0. */
#undef LOG1P_DROPS_ZERO_SIGN
/* Define if you are using Mach cthreads under mach / */
#undef MACH_C_THREADS
/* Define to 1 if `major', `minor', and `makedev' are declared in <mkdev.h>.
*/
#undef MAJOR_IN_MKDEV