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Remove configure probe for shm_open.

Browse Source 
shm_open() is in SUSv2 and all targeted Unix systems have it.

We retain a HAVE_SHM_OPEN macro, because it's clearer to readers than
something like !defined(WIN32).

Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us>
Reviewed-by: Andres Freund <andres@anarazel.de>
Discussion: https://postgr.es/m/CA+hUKGJ3LHeP9w5Fgzdr4G8AnEtJ=z=p6hGDEm4qYGEUX5B6fQ@mail.gmail.com
This commit is contained in:
Thomas Munro 2022-08-05 09:19:36 +12:00
parent bdb657edd6
commit 098f4d813b
5 changed files with 2 additions and 6 deletions
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2
configure vendored
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@ -16039,7 +16039,7 @@ fi
LIBS_including_readline="$LIBS"
LIBS=`echo "$LIBS" | sed -e 's/-ledit//g' -e 's/-lreadline//g'`
for ac_func in backtrace_symbols clock_gettime copyfile fdatasync getifaddrs getpeerucred inet_pton kqueue mbstowcs_l memset_s poll posix_fallocate ppoll pthread_is_threaded_np readlink readv setproctitle setproctitle_fast setsid shm_open strchrnul strsignal symlink syncfs sync_file_range uselocale wcstombs_l writev
for ac_func in backtrace_symbols clock_gettime copyfile fdatasync getifaddrs getpeerucred inet_pton kqueue mbstowcs_l memset_s poll posix_fallocate ppoll pthread_is_threaded_np readlink readv setproctitle setproctitle_fast setsid strchrnul strsignal symlink syncfs sync_file_range uselocale wcstombs_l 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"

1
configure.ac
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@ -1810,7 +1810,6 @@ AC_CHECK_FUNCS(m4_normalize([
setproctitle
setproctitle_fast
setsid
shm_open
strchrnul
strsignal
symlink

3
src/include/pg_config.h.in
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@ -472,9 +472,6 @@
/* Define to 1 if you have the `setsid' function. */
#undef HAVE_SETSID
/* Define to 1 if you have the `shm_open' function. */
#undef HAVE_SHM_OPEN
/* Define to 1 if the system has the type `socklen_t'. */
#undef HAVE_SOCKLEN_T

1
src/include/port.h
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@ -525,6 +525,7 @@ extern bool wait_result_is_any_signal(int exit_status, bool include_command_not_
*/
#ifndef WIN32
#define HAVE_GETRLIMIT 1
#define HAVE_SHM_OPEN 1
#endif
#endif /* PG_PORT_H */

1
src/tools/msvc/Solution.pm
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@ -351,7 +351,6 @@ sub GenerateFiles
HAVE_SETPROCTITLE => undef,
HAVE_SETPROCTITLE_FAST => undef,
HAVE_SETSID => undef,
HAVE_SHM_OPEN => undef,
HAVE_SOCKLEN_T => 1,
HAVE_SPINLOCKS => 1,
HAVE_STDBOOL_H => 1,