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https://github.com/postgres/postgres.git
synced 2025-07-27 12:41:57 +03:00
Remove configure-time thread safety checking (thread_test.c).
This testing was useful when it was written, nigh twenty years ago,
but it seems fairly pointless for any platform built in the last
dozen or more years. (Compare also the comments at 8a2121185.)
Also we now have reports that the test program itself fails under
ThreadSanitizer. Rather than invest effort in fixing it, let's
just drop it, and assume that the few people who still care
already know they need to use --disable-thread-safety.
Back-patch into v14, for consistency with 8a2121185.
Discussion: https://postgr.es/m/CADhDkKzPSiNvA3Hyq+wSR_icuPmazG0cFe=YnC3U-CFcYLc8Xw@mail.gmail.com
This commit is contained in:
Tom Lane
222
configure
vendored
222
configure
vendored
@ -11934,121 +11934,6 @@ if test "$ac_res" != no; then :
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fi
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# Required for thread_test.c on Solaris
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing sched_yield" >&5
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$as_echo_n "checking for library containing sched_yield... " >&6; }
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if ${ac_cv_search_sched_yield+:} false; then :
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$as_echo_n "(cached) " >&6
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else
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ac_func_search_save_LIBS=$LIBS
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cat confdefs.h - <<_ACEOF >conftest.$ac_ext
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/* end confdefs.h. */
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/* Override any GCC internal prototype to avoid an error.
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Use char because int might match the return type of a GCC
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builtin and then its argument prototype would still apply. */
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#ifdef __cplusplus
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extern "C"
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#endif
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char sched_yield ();
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int
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main ()
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{
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return sched_yield ();
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;
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return 0;
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}
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_ACEOF
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for ac_lib in '' rt; do
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if test -z "$ac_lib"; then
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ac_res="none required"
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else
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ac_res=-l$ac_lib
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LIBS="-l$ac_lib $ac_func_search_save_LIBS"
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fi
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if ac_fn_c_try_link "$LINENO"; then :
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ac_cv_search_sched_yield=$ac_res
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fi
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rm -f core conftest.err conftest.$ac_objext \
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conftest$ac_exeext
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if ${ac_cv_search_sched_yield+:} false; then :
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break
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fi
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done
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if ${ac_cv_search_sched_yield+:} false; then :
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else
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ac_cv_search_sched_yield=no
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fi
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rm conftest.$ac_ext
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LIBS=$ac_func_search_save_LIBS
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_sched_yield" >&5
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$as_echo "$ac_cv_search_sched_yield" >&6; }
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ac_res=$ac_cv_search_sched_yield
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if test "$ac_res" != no; then :
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test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
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fi
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# Required for thread_test.c on Solaris 2.5:
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# Other ports use it too (HP-UX) so test unconditionally
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing gethostbyname_r" >&5
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$as_echo_n "checking for library containing gethostbyname_r... " >&6; }
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if ${ac_cv_search_gethostbyname_r+:} false; then :
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$as_echo_n "(cached) " >&6
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else
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ac_func_search_save_LIBS=$LIBS
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cat confdefs.h - <<_ACEOF >conftest.$ac_ext
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/* end confdefs.h. */
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/* Override any GCC internal prototype to avoid an error.
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Use char because int might match the return type of a GCC
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builtin and then its argument prototype would still apply. */
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#ifdef __cplusplus
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extern "C"
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#endif
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char gethostbyname_r ();
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int
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main ()
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{
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return gethostbyname_r ();
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;
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return 0;
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}
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_ACEOF
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for ac_lib in '' nsl; do
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if test -z "$ac_lib"; then
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ac_res="none required"
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else
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ac_res=-l$ac_lib
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LIBS="-l$ac_lib $ac_func_search_save_LIBS"
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fi
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if ac_fn_c_try_link "$LINENO"; then :
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ac_cv_search_gethostbyname_r=$ac_res
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fi
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rm -f core conftest.err conftest.$ac_objext \
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conftest$ac_exeext
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if ${ac_cv_search_gethostbyname_r+:} false; then :
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break
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fi
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done
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if ${ac_cv_search_gethostbyname_r+:} false; then :
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else
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ac_cv_search_gethostbyname_r=no
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fi
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rm conftest.$ac_ext
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LIBS=$ac_func_search_save_LIBS
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_gethostbyname_r" >&5
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$as_echo "$ac_cv_search_gethostbyname_r" >&6; }
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ac_res=$ac_cv_search_gethostbyname_r
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if test "$ac_res" != no; then :
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test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
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fi
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# Cygwin:
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing shmget" >&5
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$as_echo_n "checking for library containing shmget... " >&6; }
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@ -12165,6 +12050,62 @@ fi
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if test "$enable_thread_safety" = yes; then
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing gethostbyname_r" >&5
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$as_echo_n "checking for library containing gethostbyname_r... " >&6; }
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if ${ac_cv_search_gethostbyname_r+:} false; then :
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$as_echo_n "(cached) " >&6
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else
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ac_func_search_save_LIBS=$LIBS
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cat confdefs.h - <<_ACEOF >conftest.$ac_ext
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/* end confdefs.h. */
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/* Override any GCC internal prototype to avoid an error.
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Use char because int might match the return type of a GCC
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builtin and then its argument prototype would still apply. */
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#ifdef __cplusplus
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extern "C"
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#endif
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char gethostbyname_r ();
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int
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main ()
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{
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return gethostbyname_r ();
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;
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return 0;
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}
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_ACEOF
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for ac_lib in '' nsl; do
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if test -z "$ac_lib"; then
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ac_res="none required"
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else
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ac_res=-l$ac_lib
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LIBS="-l$ac_lib $ac_func_search_save_LIBS"
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fi
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if ac_fn_c_try_link "$LINENO"; then :
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ac_cv_search_gethostbyname_r=$ac_res
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fi
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rm -f core conftest.err conftest.$ac_objext \
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conftest$ac_exeext
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if ${ac_cv_search_gethostbyname_r+:} false; then :
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break
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fi
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done
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if ${ac_cv_search_gethostbyname_r+:} false; then :
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else
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ac_cv_search_gethostbyname_r=no
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fi
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rm conftest.$ac_ext
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LIBS=$ac_func_search_save_LIBS
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_gethostbyname_r" >&5
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$as_echo "$ac_cv_search_gethostbyname_r" >&6; }
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ac_res=$ac_cv_search_gethostbyname_r
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if test "$ac_res" != no; then :
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test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing pthread_barrier_wait" >&5
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$as_echo_n "checking for library containing pthread_barrier_wait... " >&6; }
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if ${ac_cv_search_pthread_barrier_wait+:} false; then :
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@ -19393,57 +19334,6 @@ fi
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fi
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fi
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# Thread testing
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# We have to run the thread test near the end so we have all our symbols
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# defined. Cross compiling throws a warning.
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#
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if test "$enable_thread_safety" = yes; then
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if test "$PORTNAME" != "win32"
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then
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking thread safety of required library functions" >&5
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$as_echo_n "checking thread safety of required library functions... " >&6; }
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_CFLAGS="$CFLAGS"
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_LIBS="$LIBS"
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CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
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LIBS="$LIBS $PTHREAD_LIBS"
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if test "$cross_compiling" = yes; then :
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: maybe" >&5
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$as_echo "maybe" >&6; }
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{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING:
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*** Skipping thread test program because of cross-compile build.
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" >&5
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$as_echo "$as_me: WARNING:
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*** Skipping thread test program because of cross-compile build.
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" >&2;}
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else
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cat confdefs.h - <<_ACEOF >conftest.$ac_ext
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/* end confdefs.h. */
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#include "$srcdir/config/thread_test.c"
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_ACEOF
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if ac_fn_c_try_run "$LINENO"; then :
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
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$as_echo "yes" >&6; }
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else
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
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$as_echo "no" >&6; }
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as_fn_error $? "thread test program failed
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This platform is not thread-safe. Check the file 'config.log' for the
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exact reason, or use --disable-thread-safety to disable thread safety." "$LINENO" 5
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fi
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rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
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conftest.$ac_objext conftest.beam conftest.$ac_ext
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fi
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CFLAGS="$_CFLAGS"
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LIBS="$_LIBS"
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else
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{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: *** skipping thread test on Win32" >&5
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$as_echo "$as_me: WARNING: *** skipping thread test on Win32" >&2;}
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fi
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fi
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# If compiler will take -Wl,--as-needed (or various platform-specific
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# spellings thereof) then add that to LDFLAGS. This is much easier than
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# trying to filter LIBS to the minimum for each executable.
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