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bpo-40280: Move hard-coded feature checks to configure (GH-29789) by tiran · Pull Request #29789 · python/cpython · GitHub

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bpo-40280: Move hard-coded feature checks to configure (GH-29789) #29789

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tiran merged 2 commits into from
Nov 26, 2021
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bpo-40280: Move hard-coded feature checks to configure (GH-29789) #29789

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bpo-40280: Move hard-coded feature checks to configure
tiran Nov 26, 2021
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tiran Nov 26, 2021
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3 changes: 3 additions & 0 deletions Misc/NEWS.d/next/Build/2021-11-26-09-10-19.bpo-40280.xmiMJl.rst
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@@ -0,0 +1,3 @@
``configure`` now checks for functions ``fork1, getegid,
geteuid, getgid, getppid, getuid, opendir, pipe, system, wait,
ttyname``.
20 changes: 0 additions & 20 deletions Modules/posixmodule.c
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Expand Up @@ -320,26 +320,6 @@ corresponding Unix manual entries for more information on calls.");
# define HAVE_CWAIT 1
# define HAVE_FSYNC 1
# define fsync _commit
# else
/* Unix functions that the configure script doesn't check for */
# ifndef __VXWORKS__
# define HAVE_EXECV 1
# define HAVE_FORK 1
# if defined(__USLC__) && defined(__SCO_VERSION__) /* SCO UDK Compiler */
# define HAVE_FORK1 1
# endif
# endif
# define HAVE_GETEGID 1
# define HAVE_GETEUID 1
# define HAVE_GETGID 1
# define HAVE_GETPPID 1
# define HAVE_GETUID 1
# define HAVE_KILL 1
# define HAVE_OPENDIR 1
# define HAVE_PIPE 1
# define HAVE_SYSTEM 1
# define HAVE_WAIT 1
# define HAVE_TTYNAME 1
# endif /* _MSC_VER */
#endif /* ! __WATCOMC__ || __QNX__ */

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51 changes: 26 additions & 25 deletions configure
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Original file line number Diff line number Diff line change
Expand Up @@ -13376,31 +13376,32 @@ $as_echo "$MACHDEP_OBJS" >&6; }
fi

# checks for library functions
for ac_func in alarm accept4 setitimer getitimer bind_textdomain_codeset chown \
clock confstr close_range copy_file_range ctermid dup3 execv explicit_bzero \
explicit_memset faccessat fchmod fchmodat fchown fchownat \
fdwalk fexecve fdopendir fork fpathconf fstatat ftime ftruncate futimesat \
futimens futimes gai_strerror getentropy \
getgrgid getgrgid_r getgrnam_r \
getgrouplist getgroups getlogin getloadavg getpeername getpgid getpid \
getpriority getresuid getresgid getpwent getpwnam_r getpwuid_r getspnam getspent getsid getwd \
if_nameindex \
initgroups kill killpg lchown lockf linkat lstat lutimes mmap \
memrchr mbrtowc mkdirat mkfifo \
madvise mkfifoat mknod mknodat mktime mremap nice openat pathconf pause pipe2 plock poll \
posix_fallocate posix_fadvise posix_spawn posix_spawnp pread preadv preadv2 \
pthread_condattr_setclock pthread_init pthread_kill pwrite pwritev pwritev2 \
readlink readlinkat readv realpath renameat \
sem_open sem_timedwait sem_clockwait sem_getvalue sem_unlink sendfile setegid seteuid \
setgid sethostname \
setlocale setregid setreuid setresuid setresgid setsid setpgid setpgrp setpriority setuid setvbuf \
sched_get_priority_max sched_setaffinity sched_setscheduler sched_setparam \
sched_rr_get_interval shutdown \
sigaction sigaltstack sigfillset siginterrupt sigpending sigrelse \
sigtimedwait sigwait sigwaitinfo snprintf splice strftime strlcpy strsignal symlinkat sync \
sysconf tcgetpgrp tcsetpgrp tempnam timegm times tmpfile tmpnam tmpnam_r \
truncate uname unlinkat utimensat utimes vfork waitid waitpid wait3 wait4 \
wcscoll wcsftime wcsxfrm wmemcmp writev _getpty rtpSpawn
for ac_func in \
accept4 alarm bind_textdomain_codeset chown clock close_range confstr \
copy_file_range ctermid dup3 execv explicit_bzero explicit_memset \
faccessat fchmod fchmodat fchown fchownat fdopendir fdwalk fexecve \
fork fork1 fpathconf fstatat ftime ftruncate futimens futimes futimesat \
gai_strerror getegid getentropy geteuid getgid getgrgid getgrgid_r \
getgrnam_r getgrouplist getgroups getitimer getloadavg getlogin \
getpeername getpgid getpid getppid getpriority _getpty \
getpwent getpwnam_r getpwuid_r getresgid getresuid getsid getspent \
getspnam getuid getwd if_nameindex initgroups kill killpg lchown linkat \
lockf lstat lutimes madvise mbrtowc memrchr mkdirat mkfifo mkfifoat \
mknod mknodat mktime mmap mremap nice openat opendir pathconf pause pipe \
pipe2 plock poll posix_fadvise posix_fallocate posix_spawn posix_spawnp \
pread preadv preadv2 pthread_condattr_setclock pthread_init pthread_kill \
pwrite pwritev pwritev2 readlink readlinkat readv realpath renameat \
rtpSpawn sched_get_priority_max sched_rr_get_interval sched_setaffinity \
sched_setparam sched_setscheduler sem_clockwait sem_getvalue sem_open \
sem_timedwait sem_unlink sendfile setegid seteuid setgid sethostname \
setitimer setlocale setpgid setpgrp setpriority setregid setresgid \
setresuid setreuid setsid setuid setvbuf shutdown sigaction sigaltstack \
sigfillset siginterrupt sigpending sigrelse sigtimedwait sigwait \
sigwaitinfo snprintf splice strftime strlcpy strsignal symlinkat sync \
sysconf system tcgetpgrp tcsetpgrp tempnam timegm times tmpfile \
tmpnam tmpnam_r truncate ttyname uname unlinkat utimensat utimes vfork \
wait wait3 wait4 waitid waitpid wcscoll wcsftime wcsxfrm wmemcmp writev \

do :
as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
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51 changes: 26 additions & 25 deletions configure.ac
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Original file line number Diff line number Diff line change
Expand Up @@ -3937,31 +3937,32 @@ else
fi

# checks for library functions
AC_CHECK_FUNCS(alarm accept4 setitimer getitimer bind_textdomain_codeset chown \
clock confstr close_range copy_file_range ctermid dup3 execv explicit_bzero \
explicit_memset faccessat fchmod fchmodat fchown fchownat \
fdwalk fexecve fdopendir fork fpathconf fstatat ftime ftruncate futimesat \
futimens futimes gai_strerror getentropy \
getgrgid getgrgid_r getgrnam_r \
getgrouplist getgroups getlogin getloadavg getpeername getpgid getpid \
getpriority getresuid getresgid getpwent getpwnam_r getpwuid_r getspnam getspent getsid getwd \
if_nameindex \
initgroups kill killpg lchown lockf linkat lstat lutimes mmap \
memrchr mbrtowc mkdirat mkfifo \
madvise mkfifoat mknod mknodat mktime mremap nice openat pathconf pause pipe2 plock poll \
posix_fallocate posix_fadvise posix_spawn posix_spawnp pread preadv preadv2 \
pthread_condattr_setclock pthread_init pthread_kill pwrite pwritev pwritev2 \
readlink readlinkat readv realpath renameat \
sem_open sem_timedwait sem_clockwait sem_getvalue sem_unlink sendfile setegid seteuid \
setgid sethostname \
setlocale setregid setreuid setresuid setresgid setsid setpgid setpgrp setpriority setuid setvbuf \
sched_get_priority_max sched_setaffinity sched_setscheduler sched_setparam \
sched_rr_get_interval shutdown \
sigaction sigaltstack sigfillset siginterrupt sigpending sigrelse \
sigtimedwait sigwait sigwaitinfo snprintf splice strftime strlcpy strsignal symlinkat sync \
sysconf tcgetpgrp tcsetpgrp tempnam timegm times tmpfile tmpnam tmpnam_r \
truncate uname unlinkat utimensat utimes vfork waitid waitpid wait3 wait4 \
wcscoll wcsftime wcsxfrm wmemcmp writev _getpty rtpSpawn)
AC_CHECK_FUNCS([ \
accept4 alarm bind_textdomain_codeset chown clock close_range confstr \
copy_file_range ctermid dup3 execv explicit_bzero explicit_memset \
faccessat fchmod fchmodat fchown fchownat fdopendir fdwalk fexecve \
fork fork1 fpathconf fstatat ftime ftruncate futimens futimes futimesat \
gai_strerror getegid getentropy geteuid getgid getgrgid getgrgid_r \
getgrnam_r getgrouplist getgroups getitimer getloadavg getlogin \
getpeername getpgid getpid getppid getpriority _getpty \
getpwent getpwnam_r getpwuid_r getresgid getresuid getsid getspent \
getspnam getuid getwd if_nameindex initgroups kill killpg lchown linkat \
lockf lstat lutimes madvise mbrtowc memrchr mkdirat mkfifo mkfifoat \
mknod mknodat mktime mmap mremap nice openat opendir pathconf pause pipe \
pipe2 plock poll posix_fadvise posix_fallocate posix_spawn posix_spawnp \
pread preadv preadv2 pthread_condattr_setclock pthread_init pthread_kill \
pwrite pwritev pwritev2 readlink readlinkat readv realpath renameat \
rtpSpawn sched_get_priority_max sched_rr_get_interval sched_setaffinity \
sched_setparam sched_setscheduler sem_clockwait sem_getvalue sem_open \
sem_timedwait sem_unlink sendfile setegid seteuid setgid sethostname \
setitimer setlocale setpgid setpgrp setpriority setregid setresgid \
setresuid setreuid setsid setuid setvbuf shutdown sigaction sigaltstack \
sigfillset siginterrupt sigpending sigrelse sigtimedwait sigwait \
sigwaitinfo snprintf splice strftime strlcpy strsignal symlinkat sync \
sysconf system tcgetpgrp tcsetpgrp tempnam timegm times tmpfile \
tmpnam tmpnam_r truncate ttyname uname unlinkat utimensat utimes vfork \
wait wait3 wait4 waitid waitpid wcscoll wcsftime wcsxfrm wmemcmp writev \
])

# Force lchmod off for Linux. Linux disallows changing the mode of symbolic
# links. Some libc implementations have a stub lchmod implementation that always
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33 changes: 33 additions & 0 deletions pyconfig.h.in
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Expand Up @@ -362,6 +362,9 @@
/* Define to 1 if you have the `fork' function. */
#undef HAVE_FORK

/* Define to 1 if you have the `fork1' function. */
#undef HAVE_FORK1

/* Define to 1 if you have the `forkpty' function. */
#undef HAVE_FORKPTY

Expand Down Expand Up @@ -435,9 +438,18 @@
/* Define this if you have flockfile(), getc_unlocked(), and funlockfile() */
#undef HAVE_GETC_UNLOCKED

/* Define to 1 if you have the `getegid' function. */
#undef HAVE_GETEGID

/* Define to 1 if you have the `getentropy' function. */
#undef HAVE_GETENTROPY

/* Define to 1 if you have the `geteuid' function. */
#undef HAVE_GETEUID

/* Define to 1 if you have the `getgid' function. */
#undef HAVE_GETGID

/* Define to 1 if you have the `getgrgid' function. */
#undef HAVE_GETGRGID

Expand Down Expand Up @@ -495,6 +507,9 @@
/* Define to 1 if you have the `getpid' function. */
#undef HAVE_GETPID

/* Define to 1 if you have the `getppid' function. */
#undef HAVE_GETPPID

/* Define to 1 if you have the `getpriority' function. */
#undef HAVE_GETPRIORITY

Expand Down Expand Up @@ -528,6 +543,9 @@
/* Define to 1 if you have the `getspnam' function. */
#undef HAVE_GETSPNAM

/* Define to 1 if you have the `getuid' function. */
#undef HAVE_GETUID

/* Define to 1 if you have the `getwd' function. */
#undef HAVE_GETWD

Expand Down Expand Up @@ -767,6 +785,9 @@
/* Define to 1 if you have the `openat' function. */
#undef HAVE_OPENAT

/* Define to 1 if you have the `opendir' function. */
#undef HAVE_OPENDIR

/* Define to 1 if you have the `openpty' function. */
#undef HAVE_OPENPTY

Expand All @@ -776,6 +797,9 @@
/* Define to 1 if you have the `pause' function. */
#undef HAVE_PAUSE

/* Define to 1 if you have the `pipe' function. */
#undef HAVE_PIPE

/* Define to 1 if you have the `pipe2' function. */
#undef HAVE_PIPE2

Expand Down Expand Up @@ -1137,6 +1161,9 @@
/* Define to 1 if you have the <syslog.h> header file. */
#undef HAVE_SYSLOG_H

/* Define to 1 if you have the `system' function. */
#undef HAVE_SYSTEM

/* Define to 1 if you have the <sys/audioio.h> header file. */
#undef HAVE_SYS_AUDIOIO_H

Expand Down Expand Up @@ -1296,6 +1323,9 @@
/* Define to 1 if you have the `truncate' function. */
#undef HAVE_TRUNCATE

/* Define to 1 if you have the `ttyname' function. */
#undef HAVE_TTYNAME

/* Define to 1 if you don't have `tm_zone' but do have the external array
`tzname'. */
#undef HAVE_TZNAME
Expand Down Expand Up @@ -1347,6 +1377,9 @@
/* Define to 1 if you have the `vfork' function. */
#undef HAVE_VFORK

/* Define to 1 if you have the `wait' function. */
#undef HAVE_WAIT

/* Define to 1 if you have the `wait3' function. */
#undef HAVE_WAIT3

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