diff -Naur Python-3.8.0-orig/configure.ac Python-3.8.0/configure.ac --- Python-3.8.0-orig/configure.ac 2019-10-22 10:00:29.329088100 +0300 +++ Python-3.8.0/configure.ac 2019-10-22 10:00:31.778292400 +0300 @@ -1960,6 +1960,46 @@ BASECFLAGS="$BASECFLAGS $ac_arch_flags" fi +dnl NOTE: +dnl - GCC 4.4+ for mingw* require and use posix threads(pthreads-w32) +dnl - Host may contain installed pthreads-w32. +dnl - On windows platform only NT-thread model is supported. +dnl To avoid miss detection scipt first will check for NT-thread model +dnl and if is not found will try to detect build options for pthread +dnl model. Autodetection could be overiden if variable with_nt_threads +dnl is set in "Site Configuration" (see autoconf manual). +dnl If NT-thread model is enabled script skips some checks that +dnl impact build process. When a new functionality is added, developers +dnl are responsible to update configure script to avoid thread models +dnl to be mixed. + +AC_MSG_CHECKING([for NT threads]) +AC_ARG_WITH(nt-threads, + AS_HELP_STRING([--with-nt-threads], [build with windows threads]), +[ + case $withval in + no) with_nt_threads=no;; + yes) with_nt_threads=yes;; + *) with_nt_threads=yes;; + esac], [ + with_nt_threads=no]) +if test $with_nt_threads = yes ; then +AC_LINK_IFELSE([ + AC_LANG_PROGRAM([[]],[[_beginthread(0, 0, 0);]]) + ], + [with_nt_threads=yes], + [with_nt_threads=no]) +fi +AC_MSG_RESULT([$with_nt_threads]) + +if test $with_nt_threads = yes ; then + dnl temporary default flag to avoid additional pthread checks + dnl and initilize other ac..thread flags to no + ac_cv_pthread_is_default=no + ac_cv_kthread=no + ac_cv_pthread=no + dnl ac_cv_kpthread is set to no if default is yes (see below) +else # On some compilers, pthreads are available without further options # (e.g. MacOS X). On some of these systems, the compiler will not # complain if unaccepted options are passed (e.g. gcc on Mac OS X). @@ -2078,6 +2118,8 @@ AC_MSG_RESULT($ac_cv_pthread) fi +fi + # If we have set a CC compiler flag for thread support then # check if it works for CXX, too. ac_cv_cxx_thread=no @@ -2098,6 +2140,10 @@ then CXX="$CXX -pthread" ac_cv_cxx_thread=yes +elif test $with_nt_threads = yes +then + dnl set to always to skip extra pthread check below + ac_cv_cxx_thread=always fi if test $ac_cv_cxx_thread = yes @@ -2130,8 +2176,8 @@ AC_HEADER_STDC AC_CHECK_HEADERS(asm/types.h crypt.h conio.h direct.h dlfcn.h errno.h \ fcntl.h grp.h \ -ieeefp.h io.h langinfo.h libintl.h process.h pthread.h \ -sched.h shadow.h signal.h stropts.h termios.h \ +ieeefp.h io.h langinfo.h libintl.h process.h \ +shadow.h signal.h stropts.h termios.h \ utime.h \ poll.h sys/devpoll.h sys/epoll.h sys/poll.h \ sys/audioio.h sys/xattr.h sys/bsdtty.h sys/event.h sys/file.h sys/ioctl.h \ @@ -2145,6 +2191,14 @@ AC_HEADER_DIRENT AC_HEADER_MAJOR +# If using nt threads, don't look for pthread.h or thread.h +if test "x$with_nt_threads" = xno ; then +AC_HEADER_STDC +AC_CHECK_HEADERS(pthread.h sched.h thread.h) +AC_HEADER_DIRENT +AC_HEADER_MAJOR +fi + # bluetooth/bluetooth.h has been known to not compile with -std=c99. # http://permalink.gmane.org/gmane.linux.bluez.kernel/22294 SAVE_CFLAGS=$CFLAGS @@ -2342,6 +2396,10 @@ AC_MSG_CHECKING(for pthread_t) have_pthread_t=no +if test $with_nt_threads = yes ; then + dnl skip check for pthread_t if NT-thread model is enabled + have_pthread_t=skip +else AC_COMPILE_IFELSE([ AC_LANG_PROGRAM([[#include ]], [[pthread_t x; x = *(pthread_t*)0;]]) ],[have_pthread_t=yes],[]) @@ -2372,6 +2430,7 @@ else AC_MSG_RESULT(no) fi +fi CC="$ac_save_cc" AC_SUBST(OTHER_LIBTOOL_OPT) @@ -2814,10 +2873,15 @@ [AC_MSG_RESULT(no)] ) +if test $with_nt_threads = yes ; then + dnl do not search for sem_init if NT-thread model is enabled + : +else # 'Real Time' functions on Solaris # posix4 on Solaris 2.6 # pthread (first!) on Linux AC_SEARCH_LIBS(sem_init, pthread rt posix4) +fi # check if we need libintl for locale functions AC_CHECK_LIB(intl, textdomain, @@ -3087,6 +3151,11 @@ CXX="$CXX -pthread" fi posix_threads=yes +elif test $with_nt_threads = yes +then + posix_threads=no + AC_DEFINE(NT_THREADS, 1, + [Define to 1 if you want to use native NT threads]) else if test ! -z "$withval" -a -d "$withval" then LDFLAGS="$LDFLAGS -L$withval" @@ -3538,6 +3607,15 @@ fi # checks for library functions +if test $with_nt_threads = yes ; then + dnl GCC(mingw) 4.4+ require and use posix threads(pthreads-w32) + dnl and host may contain installed pthreads-w32. + dnl Skip checks for some functions declared in pthreads-w32 if + dnl NT-thread model is enabled. + ac_cv_func_pthread_kill=skip + ac_cv_func_sem_open=skip + ac_cv_func_sched_setscheduler=skip +fi AC_CHECK_FUNCS(alarm accept4 setitimer getitimer bind_textdomain_codeset chown \ clock confstr copy_file_range ctermid dup3 execv explicit_bzero explicit_memset \ faccessat fchmod fchmodat fchown fchownat \ @@ -4462,6 +4540,10 @@ # the kernel module that provides POSIX semaphores # isn't loaded by default, so an attempt to call # sem_open results in a 'Signal 12' error. +if test $with_nt_threads = yes ; then + dnl skip posix semaphores test if NT-thread model is enabled + ac_cv_posix_semaphores_enabled=no +fi AC_MSG_CHECKING(whether POSIX semaphores are enabled) AC_CACHE_VAL(ac_cv_posix_semaphores_enabled, AC_RUN_IFELSE([AC_LANG_SOURCE([[ @@ -4495,6 +4577,14 @@ # Multiprocessing check for broken sem_getvalue AC_MSG_CHECKING(for broken sem_getvalue) +if test $with_nt_threads = yes ; then + dnl Skip test if NT-thread model is enabled. + dnl NOTE the test case below fail for pthreads-w32 as: + dnl - SEM_FAILED is not defined; + dnl - sem_open is a stub; + dnl - sem_getvalue work(!). + ac_cv_broken_sem_getvalue=skip +fi AC_CACHE_VAL(ac_cv_broken_sem_getvalue, AC_RUN_IFELSE([AC_LANG_SOURCE([[ #include diff -Naur Python-3.8.0-orig/Modules/_multiprocessing/multiprocessing.h Python-3.8.0/Modules/_multiprocessing/multiprocessing.h --- Python-3.8.0-orig/Modules/_multiprocessing/multiprocessing.h 2019-10-14 16:34:47.000000000 +0300 +++ Python-3.8.0/Modules/_multiprocessing/multiprocessing.h 2019-10-22 10:00:32.168293100 +0300 @@ -21,6 +21,9 @@ # endif # define SEM_HANDLE HANDLE # define SEM_VALUE_MAX LONG_MAX +# if defined(HAVE_SEM_OPEN) && defined(_POSIX_THREADS) +# include +# endif #else # include /* O_CREAT and O_EXCL */ # if defined(HAVE_SEM_OPEN) && !defined(POSIX_SEMAPHORES_NOT_ENABLED) diff -Naur Python-3.8.0-orig/pyconfig.h.in Python-3.8.0/pyconfig.h.in --- Python-3.8.0-orig/pyconfig.h.in 2019-10-14 16:34:47.000000000 +0300 +++ Python-3.8.0/pyconfig.h.in 2019-10-22 10:00:32.558293800 +0300 @@ -1352,6 +1352,9 @@ /* Define if mvwdelch in curses.h is an expression. */ #undef MVWDELCH_IS_EXPRESSION +/* Define to 1 if you want to use native NT threads */ +#undef NT_THREADS + /* Define to the address where bug reports for this package should be sent. */ #undef PACKAGE_BUGREPORT