693 lines
19 KiB
Plaintext
693 lines
19 KiB
Plaintext
dnl OpenLDAP Autoconf thread check
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dnl
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dnl This work is part of OpenLDAP Software <http://www.openldap.org/>.
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dnl
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dnl Copyright 1998-2010 The OpenLDAP Foundation.
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dnl All rights reserved.
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dnl
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dnl Redistribution and use in source and binary forms, with or without
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dnl modification, are permitted only as authorized by the OpenLDAP
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dnl Public License.
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dnl
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dnl A copy of this license is available in the file LICENSE-OPENLDAP in
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dnl this directory of the distribution or, alternatively, at
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dnl <http://www.OpenLDAP.org/license.html>.
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dnl
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dnl --------------------------------------------------------------------
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dnl This file is a fragment of OpenLDAP's build/openldap.m4 and some
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dnl fragments of OpenLDAP's configure.ac .
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# OL_THREAD_CHECK([ACTION-IF-FOUND[, ACTION-IF-NOT-FOUND]])
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AC_DEFUN([OL_THREAD_CHECK], [
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AC_REQUIRE([AC_CANONICAL_HOST])
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AC_LANG_SAVE
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AC_LANG([C])
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OL_ARG_WITH(threads,[ --with-threads with threads],
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auto, [auto nt posix mach pth lwp yes no manual] )
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case "$ol_with_threads$host" in
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auto*-*-solaris2.[[0-6]])
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dnl signals sometimes delivered to wrong thread with Solaris 2.6
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ol_with_threads=no
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;;
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esac
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dnl AIX Thread requires we use cc_r or xlc_r.
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dnl But only do this IF AIX and CC is not set
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dnl and threads are auto|yes|posix.
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dnl
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dnl If we find cc_r|xlc_r, force pthreads and assume
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dnl pthread_create is in $LIBS (ie: don't bring in
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dnl any additional thread libraries)
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dnl If we do not find cc_r|xlc_r, disable threads
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ol_aix_threads=no
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case "$host" in
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*-*-aix*) dnl all AIX is not a good idea.
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if test -z "$CC" ; then
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case "$ol_with_threads" in
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auto | yes | posix) ol_aix_threads=yes ;;
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esac
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fi
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;;
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esac
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if test $ol_aix_threads = yes ; then
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if test -z "${CC}" ; then
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AC_CHECK_PROGS(CC,cc_r xlc_r cc)
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if test "$CC" = cc ; then
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dnl no CC! don't allow --with-threads
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if test $ol_with_threads != auto ; then
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AC_MSG_ERROR([--with-threads requires cc_r (or other suitable compiler) on AIX])
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else
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AC_MSG_WARN([disabling threads, no cc_r on AIX])
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fi
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ol_with_threads=no
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fi
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fi
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case ${CC} in cc_r | xlc_r)
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ol_with_threads=posix
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ol_cv_pthread_create=yes
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;;
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esac
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fi
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dnl ----------------------------------------------------------------
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dnl Threads?
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ol_link_threads=no
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dnl ol_with_yielding_select=${ol_with_yielding_select:-auto}
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OL_ARG_WITH(yielding_select,[ --with-yielding-select with yielding select],
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auto, [auto yes no manual] )
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case $ol_with_threads in auto | yes | nt)
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OL_NT_THREADS
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if test "$ol_cv_nt_threads" = yes ; then
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ol_link_threads=nt
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ol_with_threads=found
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ol_with_yielding_select=yes
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AC_DEFINE([HAVE_NT_SERVICE_MANAGER], [1], [if you have NT Service Manager])
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AC_DEFINE([HAVE_NT_EVENT_LOG], [1], [if you have NT Event Log])
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fi
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if test $ol_with_threads = nt ; then
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AC_MSG_ERROR([could not locate NT Threads])
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fi
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;;
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esac
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case $ol_with_threads in auto | yes | posix)
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AC_CHECK_HEADERS(pthread.h)
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if test $ac_cv_header_pthread_h = yes ; then
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OL_POSIX_THREAD_VERSION
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if test $ol_cv_pthread_version != 0 ; then
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AC_DEFINE_UNQUOTED([HAVE_PTHREADS], [$ol_cv_pthread_version],
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[define to pthreads API spec revision])
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else
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AC_MSG_ERROR([unknown pthread version])
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fi
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# consider threads found
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ol_with_threads=found
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OL_HEADER_LINUX_THREADS
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OL_HEADER_GNU_PTH_PTHREAD_H
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if test $ol_cv_header_gnu_pth_pthread_h = no ; then
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AC_CHECK_HEADERS(sched.h)
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fi
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dnl Now the hard part, how to link?
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dnl
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dnl currently supported checks:
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dnl
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dnl Check for no flags
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dnl pthread_create() in $LIBS
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dnl
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dnl Check special pthread (final) flags
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dnl [skipped] pthread_create() with -mt (Solaris) [disabled]
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dnl pthread_create() with -kthread (FreeBSD)
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dnl pthread_create() with -pthread (FreeBSD/Digital Unix)
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dnl pthread_create() with -pthreads (?)
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dnl pthread_create() with -mthreads (AIX)
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dnl pthread_create() with -thread (?)
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dnl
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dnl Check pthread (final) libraries
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dnl pthread_mutex_unlock() in -lpthread -lmach -lexc -lc_r (OSF/1)
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dnl pthread_mutex_lock() in -lpthread -lmach -lexc (OSF/1)
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dnl [skipped] pthread_mutex_trylock() in -lpthread -lexc (OSF/1)
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dnl pthread_join() -Wl,-woff,85 -lpthread (IRIX)
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dnl pthread_create() in -lpthread (many)
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dnl pthread_create() in -lc_r (FreeBSD)
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dnl
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dnl Check pthread (draft4) flags (depreciated)
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dnl pthread_create() with -threads (OSF/1)
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dnl
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dnl Check pthread (draft4) libraries (depreciated)
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dnl pthread_mutex_unlock() in -lpthreads -lmach -lexc -lc_r (OSF/1)
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dnl pthread_mutex_lock() in -lpthreads -lmach -lexc (OSF/1)
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dnl pthread_mutex_trylock() in -lpthreads -lexc (OSF/1)
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dnl pthread_create() in -lpthreads (many)
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dnl
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dnl pthread_create in $LIBS
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AC_CACHE_CHECK([for pthread_create in default libraries],
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ol_cv_pthread_create,[
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AC_RUN_IFELSE([OL_PTHREAD_TEST_PROGRAM],
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[ol_cv_pthread_create=yes],
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[ol_cv_pthread_create=no],
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[AC_TRY_LINK(OL_PTHREAD_TEST_INCLUDES,OL_PTHREAD_TEST_FUNCTION,
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[ol_cv_pthread_create=yes],
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[ol_cv_pthread_create=no])])])
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if test $ol_cv_pthread_create != no ; then
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ol_link_threads=posix
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ol_link_pthreads=""
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fi
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dnl OL_PTHREAD_TRY([-mt], [ol_cv_pthread_mt])
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OL_PTHREAD_TRY([-kthread], [ol_cv_pthread_kthread])
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OL_PTHREAD_TRY([-pthread], [ol_cv_pthread_pthread])
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OL_PTHREAD_TRY([-pthreads], [ol_cv_pthread_pthreads])
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OL_PTHREAD_TRY([-mthreads], [ol_cv_pthread_mthreads])
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OL_PTHREAD_TRY([-thread], [ol_cv_pthread_thread])
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OL_PTHREAD_TRY([-lpthread -lmach -lexc -lc_r],
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[ol_cv_pthread_lpthread_lmach_lexc_lc_r])
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OL_PTHREAD_TRY([-lpthread -lmach -lexc],
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[ol_cv_pthread_lpthread_lmach_lexc])
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dnl OL_PTHREAD_TRY([-lpthread -lexc],
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dnl [ol_cv_pthread_lpthread_lexc])
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OL_PTHREAD_TRY([-lpthread -Wl,-woff,85],
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[ol_cv_pthread_lib_lpthread_woff])
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OL_PTHREAD_TRY([-lpthread], [ol_cv_pthread_lpthread])
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OL_PTHREAD_TRY([-lc_r], [ol_cv_pthread_lc_r])
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OL_PTHREAD_TRY([-threads], [ol_cv_pthread_threads])
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OL_PTHREAD_TRY([-lpthreads -lmach -lexc -lc_r],
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[ol_cv_pthread_lpthreads_lmach_lexc_lc_r])
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OL_PTHREAD_TRY([-lpthreads -lmach -lexc],
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[ol_cv_pthread_lpthreads_lmach_lexc])
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OL_PTHREAD_TRY([-lpthreads -lexc],
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[ol_cv_pthread_lpthreads_lexc])
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OL_PTHREAD_TRY([-lpthreads],[ol_cv_pthread_lib_lpthreads])
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AC_MSG_NOTICE([ol_link_threads: <$ol_link_threads> ol_link_pthreads <$ol_link_pthreads>])
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if test $ol_link_threads != no ; then
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LTHREAD_LIBS="$LTHREAD_LIBS $ol_link_pthreads"
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dnl save flags
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save_CPPFLAGS="$CPPFLAGS"
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save_LIBS="$LIBS"
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LIBS="$LTHREAD_LIBS $LIBS"
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dnl All POSIX Thread (final) implementations should have
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dnl sched_yield instead of pthread yield.
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dnl check for both, and thr_yield for Solaris
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AC_CHECK_FUNCS(sched_yield pthread_yield thr_yield)
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if test $ac_cv_func_sched_yield = no &&
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test $ac_cv_func_pthread_yield = no &&
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test $ac_cv_func_thr_yield = no ; then
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dnl Digital UNIX has sched_yield() in -lrt
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AC_CHECK_LIB(rt, sched_yield,
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[LTHREAD_LIBS="$LTHREAD_LIBS -lrt"
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AC_DEFINE([HAVE_SCHED_YIELD], [1],
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[Define if you have the sched_yield function.])
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ac_cv_func_sched_yield=yes],
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[ac_cv_func_sched_yield=no])
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fi
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if test $ac_cv_func_sched_yield = no &&
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test $ac_cv_func_pthread_yield = no &&
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test "$ac_cv_func_thr_yield" = no ; then
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AC_MSG_WARN([could not locate sched_yield() or pthread_yield()])
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fi
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dnl Check functions for compatibility
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AC_CHECK_FUNCS(pthread_kill)
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dnl Check for pthread_rwlock_destroy with <pthread.h>
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dnl as pthread_rwlock_t may not be defined.
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AC_CACHE_CHECK([for pthread_rwlock_destroy with <pthread.h>],
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[ol_cv_func_pthread_rwlock_destroy], [
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dnl save the flags
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AC_LINK_IFELSE([AC_LANG_PROGRAM([[
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#include <pthread.h>
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pthread_rwlock_t rwlock;
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]], [[pthread_rwlock_destroy(&rwlock);]])],[ol_cv_func_pthread_rwlock_destroy=yes],[ol_cv_func_pthread_rwlock_destroy=no])
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])
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if test $ol_cv_func_pthread_rwlock_destroy = yes ; then
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AC_DEFINE([HAVE_PTHREAD_RWLOCK_DESTROY], [1],
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[define if you have pthread_rwlock_destroy function])
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fi
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dnl Check for pthread_detach with <pthread.h> inclusion
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dnl as it's symbol may have been mangled.
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AC_CACHE_CHECK([for pthread_detach with <pthread.h>],
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[ol_cv_func_pthread_detach], [
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dnl save the flags
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AC_LINK_IFELSE([AC_LANG_PROGRAM([[
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#include <pthread.h>
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#ifndef NULL
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#define NULL (void*)0
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#endif
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]], [[pthread_detach(NULL);]])],[ol_cv_func_pthread_detach=yes],[ol_cv_func_pthread_detach=no])
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])
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if test $ol_cv_func_pthread_detach = no ; then
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AC_MSG_ERROR([could not locate pthread_detach()])
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fi
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AC_DEFINE([HAVE_PTHREAD_DETACH], [1],
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[define if you have pthread_detach function])
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dnl Check for setconcurreny functions
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AC_CHECK_FUNCS( \
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pthread_setconcurrency \
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pthread_getconcurrency \
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thr_setconcurrency \
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thr_getconcurrency \
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)
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OL_SYS_LINUX_THREADS
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OL_LINUX_THREADS
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if test $ol_cv_linux_threads = error; then
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AC_MSG_ERROR([LinuxThreads header/library mismatch]);
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fi
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AC_CACHE_CHECK([if pthread_create() works],
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ol_cv_pthread_create_works,[
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AC_RUN_IFELSE([OL_PTHREAD_TEST_PROGRAM],
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[ol_cv_pthread_create_works=yes],
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[ol_cv_pthread_create_works=no],
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[dnl assume yes
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ol_cv_pthread_create_works=yes])])
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if test $ol_cv_pthread_create_works = no ; then
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AC_MSG_ERROR([pthread_create is not usable, check environment settings])
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fi
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ol_replace_broken_yield=no
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dnl case "$host" in
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dnl *-*-linux*)
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dnl AC_CHECK_FUNCS(nanosleep)
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dnl ol_replace_broken_yield=yes
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dnl ;;
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dnl esac
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if test $ol_replace_broken_yield = yes ; then
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AC_DEFINE([REPLACE_BROKEN_YIELD], [1],
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[define if sched_yield yields the entire process])
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fi
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dnl Check if select causes an yield
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if test x$ol_with_yielding_select = xauto ; then
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AC_CACHE_CHECK([if select yields when using pthreads],
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ol_cv_pthread_select_yields,[
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AC_RUN_IFELSE([AC_LANG_SOURCE([[
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#include <sys/types.h>
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#include <sys/time.h>
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#include <unistd.h>
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#include <pthread.h>
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#ifndef NULL
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#define NULL (void*) 0
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#endif
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static int fildes[2];
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static void *task(p)
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void *p;
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{
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int i;
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struct timeval tv;
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fd_set rfds;
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tv.tv_sec=10;
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tv.tv_usec=0;
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FD_ZERO(&rfds);
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FD_SET(fildes[0], &rfds);
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/* we're not interested in any fds */
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i = select(FD_SETSIZE, &rfds, NULL, NULL, &tv);
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if(i < 0) {
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perror("select");
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exit(10);
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}
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exit(0); /* if we exit here, the select blocked the whole process */
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}
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int main(argc, argv)
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int argc;
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char **argv;
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{
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pthread_t t;
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/* create a pipe to select */
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if(pipe(&fildes[0])) {
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perror("select");
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exit(1);
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}
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#ifdef HAVE_PTHREAD_SETCONCURRENCY
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(void) pthread_setconcurrency(2);
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#else
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#ifdef HAVE_THR_SETCONCURRENCY
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/* Set Solaris LWP concurrency to 2 */
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thr_setconcurrency(2);
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#endif
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#endif
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#if HAVE_PTHREADS < 6
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pthread_create(&t, pthread_attr_default, task, NULL);
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#else
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pthread_create(&t, NULL, task, NULL);
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#endif
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/* make sure task runs first */
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#ifdef HAVE_THR_YIELD
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thr_yield();
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#elif defined( HAVE_SCHED_YIELD )
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sched_yield();
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#elif defined( HAVE_PTHREAD_YIELD )
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pthread_yield();
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#endif
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exit(2);
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}]])],[ol_cv_pthread_select_yields=no],[ol_cv_pthread_select_yields=yes],[ol_cv_pthread_select_yields=cross])])
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if test $ol_cv_pthread_select_yields = cross ; then
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AC_MSG_ERROR([crossing compiling: use --with-yielding-select=yes|no|manual])
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fi
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if test $ol_cv_pthread_select_yields = yes ; then
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ol_with_yielding_select=yes
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fi
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fi
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dnl restore flags
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CPPFLAGS="$save_CPPFLAGS"
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LIBS="$save_LIBS"
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else
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AC_MSG_ERROR([could not locate usable POSIX Threads])
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fi
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fi
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if test $ol_with_threads = posix ; then
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AC_MSG_ERROR([could not locate POSIX Threads])
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fi
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;;
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esac
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case $ol_with_threads in auto | yes | mach)
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dnl check for Mach CThreads
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AC_CHECK_HEADERS(mach/cthreads.h cthreads.h)
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if test $ac_cv_header_mach_cthreads_h = yes ; then
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ol_with_threads=found
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dnl check for cthreads support in current $LIBS
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AC_CHECK_FUNC(cthread_fork,[ol_link_threads=yes])
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if test $ol_link_threads = no ; then
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dnl try -all_load
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dnl this test needs work
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AC_CACHE_CHECK([for cthread_fork with -all_load],
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[ol_cv_cthread_all_load], [
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dnl save the flags
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save_LIBS="$LIBS"
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LIBS="-all_load $LIBS"
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AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <mach/cthreads.h>]], [[
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cthread_fork((void *)0, (void *)0);
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]])],[ol_cv_cthread_all_load=yes],[ol_cv_cthread_all_load=no])
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dnl restore the LIBS
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LIBS="$save_LIBS"
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])
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if test $ol_cv_cthread_all_load = yes ; then
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LTHREAD_LIBS="$LTHREAD_LIBS -all_load"
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ol_link_threads=mach
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ol_with_threads=found
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fi
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fi
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elif test $ac_cv_header_cthreads_h = yes ; then
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dnl Hurd variant of Mach Cthreads
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dnl uses <cthreads.h> and -lthreads
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ol_with_threads=found
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dnl save the flags
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save_LIBS="$LIBS"
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LIBS="$LIBS -lthreads"
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AC_CHECK_FUNC(cthread_fork,[ol_link_threads=yes])
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LIBS="$save_LIBS"
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if test $ol_link_threads = yes ; then
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LTHREAD_LIBS="-lthreads"
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ol_link_threads=mach
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ol_with_threads=found
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else
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AC_MSG_ERROR([could not link with Mach CThreads])
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fi
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elif test $ol_with_threads = mach ; then
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AC_MSG_ERROR([could not locate Mach CThreads])
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fi
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if test $ol_link_threads = mach ; then
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AC_DEFINE([HAVE_MACH_CTHREADS], [1],
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[define if you have Mach Cthreads])
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elif test $ol_with_threads = found ; then
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AC_MSG_ERROR([could not link with Mach CThreads])
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fi
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;;
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esac
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|
|
|
case $ol_with_threads in auto | yes | pth)
|
|
|
|
AC_CHECK_HEADERS(pth.h)
|
|
|
|
if test $ac_cv_header_pth_h = yes ; then
|
|
AC_CHECK_LIB(pth, pth_version, [have_pth=yes], [have_pth=no])
|
|
|
|
if test $have_pth = yes ; then
|
|
AC_DEFINE([HAVE_GNU_PTH], [1], [if you have GNU Pth])
|
|
LTHREAD_LIBS="$LTHREAD_LIBS -lpth"
|
|
ol_link_threads=pth
|
|
ol_with_threads=found
|
|
|
|
if test x$ol_with_yielding_select = xauto ; then
|
|
ol_with_yielding_select=yes
|
|
fi
|
|
fi
|
|
fi
|
|
;;
|
|
esac
|
|
|
|
case $ol_with_threads in auto | yes | lwp)
|
|
|
|
dnl check for SunOS5 LWP
|
|
AC_CHECK_HEADERS(thread.h synch.h)
|
|
if test $ac_cv_header_thread_h = yes &&
|
|
test $ac_cv_header_synch_h = yes ; then
|
|
AC_CHECK_LIB(thread, thr_create, [have_thr=yes], [have_thr=no])
|
|
|
|
if test $have_thr = yes ; then
|
|
AC_DEFINE([HAVE_THR], [1],
|
|
[if you have Solaris LWP (thr) package])
|
|
LTHREAD_LIBS="$LTHREAD_LIBS -lthread"
|
|
ol_link_threads=thr
|
|
|
|
if test x$ol_with_yielding_select = xauto ; then
|
|
ol_with_yielding_select=yes
|
|
fi
|
|
|
|
dnl Check for setconcurrency functions
|
|
AC_CHECK_FUNCS( \
|
|
thr_setconcurrency \
|
|
thr_getconcurrency \
|
|
)
|
|
fi
|
|
fi
|
|
|
|
dnl check for SunOS4 LWP
|
|
AC_CHECK_HEADERS(lwp/lwp.h)
|
|
if test $ac_cv_header_lwp_lwp_h = yes ; then
|
|
AC_CHECK_LIB(lwp, lwp_create, [have_lwp=yes], [have_lwp=no])
|
|
|
|
if test $have_lwp = yes ; then
|
|
AC_DEFINE([HAVE_LWP], [1],
|
|
[if you have SunOS LWP package])
|
|
LTHREAD_LIBS="$LTHREAD_LIBS -llwp"
|
|
ol_link_threads=lwp
|
|
|
|
if test x$ol_with_yielding_select = xauto ; then
|
|
ol_with_yielding_select=no
|
|
fi
|
|
fi
|
|
fi
|
|
;;
|
|
esac
|
|
|
|
if test $ol_with_yielding_select = yes ; then
|
|
AC_DEFINE([HAVE_YIELDING_SELECT], [1],
|
|
[define if select implicitly yields])
|
|
fi
|
|
|
|
if test $ol_with_threads = manual ; then
|
|
dnl User thinks he can manually configure threads.
|
|
ol_link_threads=yes
|
|
|
|
AC_MSG_WARN([thread defines and link options must be set manually])
|
|
|
|
AC_CHECK_HEADERS(pthread.h sched.h)
|
|
AC_CHECK_FUNCS(sched_yield pthread_yield)
|
|
OL_HEADER_LINUX_THREADS
|
|
|
|
AC_CHECK_HEADERS(mach/cthreads.h)
|
|
AC_CHECK_HEADERS(lwp/lwp.h)
|
|
AC_CHECK_HEADERS(thread.h synch.h)
|
|
fi
|
|
|
|
if test $ol_link_threads != no && test $ol_link_threads != nt ; then
|
|
dnl needed to get reentrant/threadsafe versions
|
|
dnl
|
|
AC_DEFINE([REENTRANT], [1], [enable thread safety])
|
|
AC_DEFINE([_REENTRANT], [1], [enable thread safety])
|
|
AC_DEFINE([THREAD_SAFE], [1], [enable thread safety])
|
|
AC_DEFINE([_THREAD_SAFE], [1], [enable thread safety])
|
|
AC_DEFINE([THREADSAFE], [1], [enable thread safety])
|
|
AC_DEFINE([_THREADSAFE], [1], [enable thread safety])
|
|
AC_DEFINE([_SGI_MP_SOURCE], [1], [enable thread safety])
|
|
|
|
dnl The errno declaration may dependent upon _REENTRANT.
|
|
dnl If it does, we must link with thread support.
|
|
AC_CACHE_CHECK([for thread specific errno],
|
|
[ol_cv_errno_thread_specific], [
|
|
AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <errno.h>]], [[errno = 0;]])],[ol_cv_errno_thread_specific=yes],[ol_cv_errno_thread_specific=no])
|
|
])
|
|
|
|
dnl The h_errno declaration may dependent upon _REENTRANT.
|
|
dnl If it does, we must link with thread support.
|
|
AC_CACHE_CHECK([for thread specific h_errno],
|
|
[ol_cv_h_errno_thread_specific], [
|
|
AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netdb.h>]], [[h_errno = 0;]])],[ol_cv_h_errno_thread_specific=yes],[ol_cv_h_errno_thread_specific=no])
|
|
])
|
|
|
|
if test $ol_cv_errno_thread_specific != yes ||
|
|
test $ol_cv_h_errno_thread_specific != yes ; then
|
|
LIBS="$LTHREAD_LIBS $LIBS"
|
|
LTHREAD_LIBS=""
|
|
fi
|
|
|
|
dnl When in thread environment, use
|
|
dnl #if defined( HAVE_REENTRANT_FUNCTIONS ) || defined( HAVE_FUNC_R )
|
|
dnl func_r(...);
|
|
dnl #else
|
|
dnl # if defined( HAVE_THREADS )
|
|
dnl /* lock */
|
|
dnl # endif
|
|
dnl func(...);
|
|
dnl # if defined( HAVE_THREADS )
|
|
dnl /* unlock */
|
|
dnl # endif
|
|
dnl #endif
|
|
dnl
|
|
dnl HAVE_REENTRANT_FUNCTIONS is derived from:
|
|
dnl _POSIX_REENTRANT_FUNCTIONS
|
|
dnl _POSIX_THREAD_SAFE_FUNCTIONS
|
|
dnl _POSIX_THREADSAFE_FUNCTIONS
|
|
dnl
|
|
dnl and is currently defined in <ldap_pvt_thread.h>
|
|
dnl
|
|
dnl HAVE_THREADS is defined by <ldap_pvt_thread.h> iff -UNO_THREADS
|
|
dnl
|
|
dnl libldap/*.c should only include <ldap_pvt_thread.h> iff
|
|
dnl LDAP_R_COMPILE is defined. ie:
|
|
dnl #ifdef LDAP_R_COMPILE
|
|
dnl # include <ldap_pvt_thread.h>
|
|
dnl #endif
|
|
dnl
|
|
dnl LDAP_R_COMPILE is defined by libldap_r/Makefile.in
|
|
dnl specifically for compiling the threadsafe version of
|
|
dnl the ldap library (-lldap_r).
|
|
dnl
|
|
dnl dnl check for reentrant/threadsafe functions
|
|
dnl dnl
|
|
dnl dnl note: these should only be used when linking
|
|
dnl dnl with $LTHREAD_LIBS
|
|
dnl dnl
|
|
dnl save_CPPFLAGS="$CPPFLAGS"
|
|
dnl save_LIBS="$LIBS"
|
|
dnl LIBS="$LTHREAD_LIBS $LIBS"
|
|
dnl AC_CHECK_FUNCS( \
|
|
dnl gmtime_r \
|
|
dnl gethostbyaddr_r gethostbyname_r \
|
|
dnl feof_unlocked unlocked_feof \
|
|
dnl putc_unlocked unlocked_putc \
|
|
dnl flockfile ftrylockfile \
|
|
dnl )
|
|
dnl CPPFLAGS="$save_CPPFLAGS"
|
|
dnl LIBS="$save_LIBS"
|
|
fi
|
|
|
|
if test $ol_link_threads = no ; then
|
|
if test $ol_with_threads = yes ; then
|
|
AC_MSG_ERROR([no suitable thread support])
|
|
fi
|
|
|
|
if test $ol_with_threads = auto ; then
|
|
AC_MSG_WARN([no suitable thread support, disabling threads])
|
|
ol_with_threads=no
|
|
fi
|
|
|
|
AC_DEFINE([NO_THREADS], [1],
|
|
[define if you have (or want) no threads])
|
|
LTHREAD_LIBS=""
|
|
BUILD_THREAD=no
|
|
else
|
|
BUILD_THREAD=yes
|
|
fi
|
|
|
|
if test $ol_link_threads != no ; then
|
|
AC_DEFINE([LDAP_API_FEATURE_X_OPENLDAP_THREAD_SAFE], [1],
|
|
[define to 1 if library is thread safe])
|
|
fi
|
|
|
|
# Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND:
|
|
case "$ol_with_threads" in
|
|
no)
|
|
ol_pthread_ok=no
|
|
$2
|
|
;;
|
|
*)
|
|
ifelse([$1],,AC_DEFINE(HAVE_PTHREAD,1,[Define if you have POSIX threads libraries and header files.]),[$1])
|
|
;;
|
|
esac
|
|
|
|
AC_LANG_RESTORE
|
|
|
|
AC_SUBST(BUILD_THREAD)
|
|
AC_SUBST(LTHREAD_LIBS)
|
|
|
|
])
|