]> git.sur5r.net Git - openldap/blobdiff - configure.in
Second try to fix res_search
[openldap] / configure.in
index 86f41de85345416cdb6e5e1525441601dc8c1dde..626b4387145b7eed01b27c0e7cb6db8c4e570a13 100644 (file)
@@ -1,20 +1,33 @@
-dnl Copyright 1998 The OpenLDAP Foundation.  All Rights Reserved.
+dnl
+dnl Copyright 1998,1999 The OpenLDAP Foundation.  All Rights Reserved.
 dnl 
 dnl Redistribution and use in source and binary forms are permitted only
 dnl as authorized by the OpenLDAP Public License.  A copy of this
 dnl license is available at http://www.OpenLDAP.org/license.html or
 dnl in file LICENSE in the top-level directory of the distribution.
-dnl ----
+dnl
 
+dnl Disable config.cache!
+define([AC_CACHE_LOAD], )dnl
+define([AC_CACHE_SAVE], )dnl
 dnl Configure.in for OpenLDAP
 AC_INIT(include/ldap.h)dnl
+
+# set unset (borrowed from autoconf 2.14a)
+if (unset FOO) >/dev/null 2>&1; then
+  ol_unset=unset
+else
+  ol_unset=false
+fi
+# unset CDPATH
+$ol_unset CDPATH || test "${CDPATH+set}" != set || CDPATH=: && export CDPATH
+
 AC_CONFIG_AUX_DIR(build)dnl
-AM_INIT_AUTOMAKE(OpenLDAP,[1.1-beta], [no ac_define])dnl
+AM_INIT_AUTOMAKE(openldap,[1.2], [no ac_define])dnl
 
-dnl Do not use AutoConf 2.12; it produces a configuration script
-dnl that causes an "internal 2K buffer" error on HPUX when run
-dnl with /bin/sh.  Autoconf 2.10 seems to be okay.
-AC_PREREQ(2.10)dnl Required Autoconf version
+dnl We use autoconf features new to 2.13.1
+dnl    aclocal.m4 should be built using aclocal from automake 1.4
+AC_PREREQ(2.13.1)dnl Required Autoconf version
 
 AC_CONFIG_HEADER(include/portable.h)dnl
 
@@ -39,7 +52,6 @@ AC_ARG_WITH(subdir, [  --with-subdir=DIR change default subdirectory used for in
 AC_SUBST(ldap_subdir)dnl
 
 OL_ARG_ENABLE(debug,[  --enable-debug  enable debugging], yes)dnl
-dnl OL_ARG_ENABLE(syslog,[  --enable-syslog    enable syslog support], auto)dnl
 OL_ARG_ENABLE(proctitle,[  --enable-proctitle  enable proctitle support], yes)dnl
 OL_ARG_ENABLE(libui,[  --enable-libui  enable library user interface], yes)dnl
 OL_ARG_ENABLE(cache,[  --enable-cache  enable caching], yes)dnl
@@ -50,10 +62,12 @@ OL_ARG_ENABLE(x_compile,[  --enable-x-compile       enable cross compiling],
        no, [yes no])dnl
 
 dnl General "with" options
+OL_ARG_ENABLE(dmalloc,[  --enable-dmalloc      enable debug malloc support], no)dnl
+
 OL_ARG_WITH(kerberos,[  --with-kerberos        use Kerberos],
        auto, [auto k5 k4 afs yes no])
 OL_ARG_WITH(threads,[  --with-threads  use threads],
-       auto, [auto posix mach lwp yes no manual] )
+       auto, [auto posix mach pth lwp yes no manual] )
 OL_ARG_WITH(yielding_select,[  --with-yielding-select  with implicitly yielding select],
        auto, [auto yes no manual] )
 
@@ -76,7 +90,7 @@ OL_ARG_ENABLE(rlookups,[    --enable-rlookups enable reverse lookups], auto)dnl
 dnl SLAPD Backend options
 OL_ARG_ENABLE(ldbm,[    --enable-ldbm  enable ldbm backend], yes)dnl
 OL_ARG_WITH(ldbm_api,[      --with-ldbm-api    use LDBM API], auto,
-       [auto db2 db gdbm ndbm manual])
+       [auto db2 db mdbm gdbm manual])
 OL_ARG_WITH(ldbm_type,[      --with-ldbm-type  use LDBM type], auto,
        [auto btree hash])
 
@@ -89,16 +103,19 @@ OL_ARG_ENABLE(slurpd,[  --enable-slurpd    enable building slurpd], auto)dnl
 
 AC_ARG_WITH(xxliboptions,[Library Generation & Linking Options])
 AM_ENABLE_STATIC
-dnl AM_DISABLE_SHARED
-AM_ENABLE_SHARED
+AM_DISABLE_SHARED
+dnl AM_ENABLE_SHARED
 
 dnl General "enable" options
 # validate options
-if test $ol_enable_referrals = no ; then
-       if test $ol_enable_dns = yes ; then
-               AC_MSG_WARN([dns disabled, ignoring --enable-dns argument])
+if test $ol_enable_dns = yes ; then
+       if test $ol_enable_referrals = no ; then
+               AC_MSG_ERROR([DNS requires --enable-referrals])
+       fi
+       if test $ol_enable_referrals = auto ; then
+               AC_MSG_WARN([DNS requires referrals, adding --enable-referrals])
+               ol_enable_referrals=yes
        fi
-       ol_enable_dns=no
 fi
 
 if test $ol_enable_slapd = no ; then
@@ -171,6 +188,10 @@ else
                $ol_with_ldbm_type = btree ; then
                AC_MSG_ERROR([GDBM only supports LDBM type hash])
        fi
+       if test $ol_with_ldbm_api = mdbm -a \
+               $ol_with_ldbm_type = btree ; then
+               AC_MSG_ERROR([MDBM only supports LDBM type hash])
+       fi
        if test $ol_with_ldbm_api = ndbm -a \
                $ol_with_ldbm_type = btree ; then
                AC_MSG_ERROR([NDBM only supports LDBM type hash])
@@ -242,6 +263,11 @@ AC_AIX
 AC_ISC_POSIX
 AC_MINIX
 
+dnl BeOS requires -lbe -lroot -lnet
+AC_CHECK_LIB(be, be_app,
+       [LIBS="$LIBS -lbe -lroot -lnet"], :,
+       [-lroot -lnet])
+
 dnl OpenLDAP requires STDC features
 AM_PROG_CC_STDC
 if test "X${am_cv_prog_cc_stdc}" = "Xno" ; then
@@ -269,8 +295,23 @@ dnl
        AC_CHECK_LIB(gen, main)
 ])
 
-dnl Check for resolv
-AC_CHECK_LIB(resolv, res_search)
+dnl Check for resolver routines
+AC_CHECK_FUNCS(res_search)
+if test $ac_cv_func_res_search = "no" ; then 
+       AC_CHECK_LIB(bind, res_search)
+       ac_cv_func_res_search=$ac_cv_lib_bind_res_search
+fi
+if test $ac_cv_func_res_search = "no" ; then 
+       AC_CHECK_LIB(bind, __res_search)
+       ac_cv_func_res_search=$ac_cv_lib_bind___res_search
+fi
+if test $ac_cv_func_res_search = "no" ; then 
+       AC_CHECK_LIB(resolv, res_search)
+       ac_cv_func_res_search=$ac_cv_lib_resolv_res_search
+fi
+if test $ac_cv_func_res_search = "yes" ; then
+       AC_DEFINE(HAVE_RES_SEARCH,1)
+fi
 
 dnl HP-UX requires -lV3
 AC_CHECK_LIB(V3, sigset)
@@ -278,33 +319,39 @@ AC_CHECK_LIB(V3, sigset)
 # ISODE tests
 ol_link_isode=no
 if test $ol_enable_ldapd != no ; then
+       AC_MSG_WARN([ldapd support deprecated.  Manual intervention required.])
        dnl look for ISODE libraries
        AC_CHECK_LIB(xtpp, main, [
                ol_link_isode=yes
-               AC_DEFINE(HAVE_XTPP,1)
+               AC_DEFINE(HAVE_XTPP,1, [define if you have -lxttp])
                LDAPD_LIBS="$LDAPD_LIBS -lxtpp -lxtdsap -lxtisode -losi"
                ],:,[-lxtdsap -lxtisode -losi])
        AC_CHECK_LIB(dsap, main, [
                ol_link_isode=yes
-               AC_DEFINE(HAVE_DSAP,1)
+               AC_DEFINE(HAVE_DSAP,1, [define if you have -ldsap])
                LDAPD_LIBS="$LDAPD_LIBS -ldsap"
                ],:,[-lisode])
        AC_CHECK_LIB(isode, main, [
                ol_link_isode=yes
-               AC_DEFINE(HAVE_ISODE,1)
+               AC_DEFINE(HAVE_ISODE,1, [define if you have -lisode])
                LDAPD_LIBS="$LDAPD_LIBS -lisode"
                ],:)
 fi
 
 if test $ol_link_isode != no; then
        AC_CHECK_LIB(pp, main, [
-               AC_DEFINE(HAVE_PP,1)
+               AC_DEFINE(HAVE_PP,1, [define if you have -lpp])
                LDAPD_LIBS="-lpp $LDAPD_LIBS"
                ],:)
 
        AC_PATH_PROG(PEPSY, pepsy)
 fi
 
+dnl
+dnl check for kerberos
+dnl
+ol_link_kerberos=no
+
 if test $ol_with_kerberos = auto -o $ol_with_kerberos = k5 ; then
        AC_CHECK_HEADERS(kerberosIV/krb.h kerberosIV/des.h)
 
@@ -316,12 +363,36 @@ if test $ol_with_kerberos = auto -o $ol_with_kerberos = k5 ; then
                        ol_with_kerberos=found
                        ol_link_kerberos=yes
 
-                       AC_DEFINE(HAVE_KERBEROS)
-
                        KRB_LIBS="-lkrb4 -lkrb5 -ldes425"
+
+                       LIBS="$KRB_LIBS $LIBS"
+
+                       AC_CACHE_CHECK([for des_debug in Kerberos libraries],
+                               [ol_cv_var_des_debug], [
+                               dnl save the flags
+                               save_LIBS="$LIBS"
+                               LIBS="$KRB_LIBS $LIBS"
+                               AC_TRY_LINK([
+#include <kerberosIV/krb.h>
+#include <kerberosIV/des.h>
+extern int des_debug;
+],[
+des_debug = 1;
+],                             ol_cv_var_des_debug=yes, ol_cv_var_des_debug=no)
+                               dnl restore the LIBS
+                               LIBS="$save_LIBS"
+                       ])
+
+                       if test $ol_cv_var_des_debug = yes ; then
+                               AC_DEFINE(HAVE_DES_DEBUG,1,
+                                       [define if you have Kerberos des_debug])
+                       fi
+
+                       LIBS="$save_LIBS"
                fi
        fi
 fi
+
 if test $ol_with_kerberos = auto -o $ol_with_kerberos = k4 ; then
        AC_CHECK_HEADERS(krb.h des.h)
 
@@ -332,25 +403,30 @@ if test $ol_with_kerberos = auto -o $ol_with_kerberos = k4 ; then
                        ol_with_kerberos=found
                        ol_link_kerberos=yes
 
-                       AC_DEFINE(HAVE_KERBEROS)
                        KRB_LIBS="-lkrb -ldes"
-
-                       AC_CHECK_FUNCS(des_string_to_key)
                fi
        fi
 fi
 
+if test $ol_link_kerberos = yes ; then
+       AC_DEFINE(HAVE_KERBEROS, 1, [define if you have Kerberos])
+fi
+
 ol_link_threads=no
-if test $ol_with_threads = auto -o $ol_with_threads = posix ; then
+if test $ol_with_threads = auto -o $ol_with_threads = yes \
+       -o $ol_with_threads = posix ; then
+
        AC_CHECK_HEADERS(pthread.h sched.h)
 
        if test $ac_cv_header_pthread_h = yes ; then
                OL_POSIX_THREAD_VERSION
 
                if test $ol_cv_pthread_version = final ; then
-                       AC_DEFINE(HAVE_PTHREADS_FINAL)
+                       AC_DEFINE(HAVE_PTHREADS_FINAL,1,
+                               [define if pthreads API compatible with final spec])
                elif test $ol_cv_pthread_version = draft4 ; then
-                       AC_DEFINE(HAVE_PTHREADS_D4)
+                       AC_DEFINE(HAVE_PTHREADS_D4,1,
+                               [define if pthreads API compatible with draft4 spec])
                else
                        AC_MSG_ERROR([unknown pthread version])
                fi
@@ -361,14 +437,66 @@ if test $ol_with_threads = auto -o $ol_with_threads = posix ; then
                OL_LINUX_THREADS
 
                if test $ol_cv_linux_threads = yes ; then
-                       AC_DEFINE(HAVE_LINUX_THREADS,1)
+                       AC_DEFINE(HAVE_LINUX_THREADS,1,
+                               [define if you have LinuxThreads])
                fi
 
-               dnl Now the hard part, how to link
-
-               dnl Check for pthread support in current $LIBS
+               dnl Now the hard part, how to link?
+               dnl
+               dnl currently supported checks:
+               dnl
+               dnl Check for no flags 
+               dnl     pthread_create() in $LIBS
+               dnl
+               dnl Check special pthread (final) flags
+               dnl     pthread_create() with -kthread (FreeBSD)
+               dnl     pthread_create() with -pthread (FreeBSD/Digital Unix)
+               dnl     pthread_create() with -pthreads (?)
+               dnl     pthread_create() with -thread (?)
+               dnl     pthread_create() with -mt (Solaris)
+               dnl
+               dnl Check pthread (final) libraries
+               dnl     pthread_mutex_unlock() in -lpthread -lmach -lexc -lc_r (OSF/1)
+               dnl     pthread_mutex_lock() in -lpthread -lmach -lexc (OSF/1)
+               dnl     pthread_mutex_trylock() in -lpthread -lexc (OSF/1)
+               dnl     pthread_create() in -lpthread (many)
+               dnl     pthread_create() in -lc_r (FreeBSD)
+               dnl     pthread_create() in -lpthreads (many)
+               dnl     pthread_join() -Wl,-woff,85 -lpthreads (IRIX)
+               dnl     pthread_create() in HP-UX -lpthread (HP-UX 11)
+               dnl
+               dnl Check pthread (draft4) flags (to be depreciated)
+               dnl     pthread_create() with -threads (OSF/1)
+               dnl
+               dnl Check pthread (final) libraries (to be depreciated)
+               dnl     pthread_mutex_unlock() in -lpthreads -lmach -lexc -lc_r (OSF/1)
+               dnl     pthread_mutex_lock() in -lpthreads -lmach -lexc (OSF/1)
+               dnl     pthread_mutex_trylock() in -lpthreads -lexc (OSF/1)
+               dnl
+
+               dnl pthread_create in $LIBS
                AC_CHECK_FUNC(pthread_create,[ol_link_threads=yes])
 
+               if test $ol_link_threads = no ; then
+                       dnl try -kthread
+                       AC_CACHE_CHECK([for pthread_create with -kthread],
+                               [ol_cv_kthread_flag], [
+                               dnl save the flags
+                               save_LIBS="$LIBS"
+                               LIBS="-kthread $LIBS"
+                               AC_TRY_LINK([#include <pthread.h>],
+                                       [pthread_create(NULL,NULL,NULL,NULL);],
+                                       [ol_cv_kthread_flag=yes], [ol_cv_kthread_flag=no])
+                               dnl restore the LIBS
+                               LIBS="$save_LIBS"
+                       ])
+
+                       if test $ol_cv_kthread_flag = yes ; then
+                               LTHREAD_LIBS="$LTHREAD_LIBS -kthread"
+                               ol_link_threads=posix
+                       fi
+               fi
+
                if test $ol_link_threads = no ; then
                        dnl try -pthread
                        AC_CACHE_CHECK([for pthread_create with -pthread],
@@ -376,9 +504,9 @@ if test $ol_with_threads = auto -o $ol_with_threads = posix ; then
                                dnl save the flags
                                save_LIBS="$LIBS"
                                LIBS="-pthread $LIBS"
-                               AC_TRY_LINK([char pthread();],[
-                                       pthread_create();
-                                       ], ol_cv_pthread_flag=yes, ol_cv_pthread_flag=no)
+                               AC_TRY_LINK([#include <pthread.h>],
+                                       [pthread_create(NULL,NULL,NULL,NULL);],
+                                       [ol_cv_pthread_flag=yes], [ol_cv_pthread_flag=no])
                                dnl restore the LIBS
                                LIBS="$save_LIBS"
                        ])
@@ -389,6 +517,26 @@ if test $ol_with_threads = auto -o $ol_with_threads = posix ; then
                        fi
                fi
 
+               if test $ol_link_threads = no ; then
+                       dnl try -pthreads
+                       AC_CACHE_CHECK([for pthread_create with -pthreads],
+                               [ol_cv_pthreads_flag], [
+                               dnl save the flags
+                               save_LIBS="$LIBS"
+                               LIBS="-pthreads $LIBS"
+                               AC_TRY_LINK([#include <pthread.h>],
+                                       [pthread_create(NULL,NULL,NULL,NULL);],
+                                       [ol_cv_pthreads_flag=yes], [ol_cv_pthreads_flag=no])
+                               dnl restore the LIBS
+                               LIBS="$save_LIBS"
+                       ])
+
+                       if test $ol_cv_pthreads_flag = yes ; then
+                               LTHREAD_LIBS="$LTHREAD_LIBS -pthreads"
+                               ol_link_threads=posix
+                       fi
+               fi
+
                if test $ol_link_threads = no ; then
                        dnl try -thread
                        AC_CACHE_CHECK([for pthread_create with -thread],
@@ -396,9 +544,9 @@ if test $ol_with_threads = auto -o $ol_with_threads = posix ; then
                                dnl save the flags
                                save_LIBS="$LIBS"
                                LIBS="-thread $LIBS"
-                               AC_TRY_LINK([char pthread();],[
-                                       pthread_create();
-                                       ], ol_cv_thread_flag=yes, ol_cv_thread_flag=no)
+                               AC_TRY_LINK([char pthread_create();],
+                                       [pthread_create();],
+                                       [ol_cv_thread_flag=yes], [ol_cv_thread_flag=no])
                                dnl restore the LIBS
                                LIBS="$save_LIBS"
                        ])
@@ -410,28 +558,61 @@ if test $ol_with_threads = auto -o $ol_with_threads = posix ; then
                fi
 
                if test $ol_link_threads = no ; then
-                       dnl try DEC Threads -lpthread -lexc
+                       dnl try -mt
+                       AC_CACHE_CHECK([for pthread_create with -mt],
+                               [ol_cv_thread_flag], [
+                               dnl save the flags
+                               save_LIBS="$LIBS"
+                               LIBS="-mt $LIBS"
+                               AC_TRY_LINK([char pthread_create();],
+                                       [pthread_create();],
+                                       [ol_cv_thread_flag=yes], [ol_cv_thread_flag=no])
+                               dnl restore the LIBS
+                               LIBS="$save_LIBS"
+                       ])
+
+                       if test $ol_cv_thread_flag = yes ; then
+                               LTHREAD_LIBS="$LTHREAD_LIBS -mt"
+                               ol_link_threads=posix
+                       fi
+               fi
+
+               if test $ol_link_threads = no ; then
+                       dnl try DEC Threads -lpthread -lmach -lexc -lc_r
                        save_LIBS="$LIBS"
-                       AC_CHECK_LIB(pthread, pthread_join, [
+                       AC_CHECK_LIB(pthread, pthread_mutex_unlock, [
                                ol_link_threads=posix
-                               LTHREAD_LIBS="$LTHREAD_LIBS -lpthread -lexc"
+                               LTHREAD_LIBS="$LTHREAD_LIBS -lpthread -lmach -lexc -lc_r"
                                if test $ol_with_yielding_select = auto ; then
                                        ol_with_yielding_select=yes
                                fi
-                               ],,[-lexc])
+                               ],:,[-lmach -lexc -lc_r])
                        LIBS="$save_LIBS"
                fi
 
                if test $ol_link_threads = no ; then
-                       dnl try DEC Threads -lpthreads -lmach -lexc -lc_r
+                       dnl try DEC Threads -lpthread -lmach -lexc
                        save_LIBS="$LIBS"
-                       AC_CHECK_LIB(pthreads, pthread_join, [
+                       AC_CHECK_LIB(pthread, pthread_mutex_lock, [
                                ol_link_threads=posix
-                               LTHREAD_LIBS="$LTHREAD_LIBS -lpthreads -lmach -lexc -lc_r"
+                               LTHREAD_LIBS="$LTHREAD_LIBS -lpthread -lmach -lexc"
+                               if test $ol_with_yielding_select = auto ; then
+                                       ol_with_yielding_select=yes
+                               fi
+                               ],:,[-lmach -lexc])
+                       LIBS="$save_LIBS"
+               fi
+
+               if test $ol_link_threads = no ; then
+                       dnl try DEC Threads -lpthread -lexc
+                       save_LIBS="$LIBS"
+                       AC_CHECK_LIB(pthread, pthread_mutex_trylock, [
+                               ol_link_threads=posix
+                               LTHREAD_LIBS="$LTHREAD_LIBS -lpthread -lexc"
                                if test $ol_with_yielding_select = auto ; then
                                        ol_with_yielding_select=yes
                                fi
-                               ],,[-lmach -lexc -lc_r])
+                               ],:,[-lexc])
                        LIBS="$save_LIBS"
                fi
 
@@ -440,7 +621,7 @@ if test $ol_with_threads = auto -o $ol_with_threads = posix ; then
                        save_LIBS="$LIBS"
                        AC_CHECK_LIB(pthread, pthread_create, [
                                ol_link_threads=posix
-                               LTHREAD_LIBS="$LTHREAD_LIBS -lpthread"])
+                               LTHREAD_LIBS="$LTHREAD_LIBS -lpthread"],:)
                        LIBS="$save_LIBS"
                fi
 
@@ -449,12 +630,123 @@ if test $ol_with_threads = auto -o $ol_with_threads = posix ; then
                        save_LIBS="$LIBS"
                        AC_CHECK_LIB(c_r, pthread_create, [
                                ol_link_threads=posix
-                               LTHREAD_LIBS="$LTHREAD_LIBS -lc_r"])
+                               LTHREAD_LIBS="$LTHREAD_LIBS -lc_r"],:)
+                       LIBS="$save_LIBS"
+               fi
+
+               if test $ol_link_threads = no ; then
+                       dnl try -lpthreads
+                       save_LIBS="$LIBS"
+                       AC_CHECK_LIB(pthreads, pthread_create, [
+                               ol_link_threads=posix
+                               LTHREAD_LIBS="$LTHREAD_LIBS -lpthreads"],:)
+                       LIBS="$save_LIBS"
+               fi
+
+               dnl IRIX Pthread check
+               if test $ol_link_threads = no ; then
+                       dnl try IRIX Pthreads -Wl,-woff,85 -lpthreads
+                       save_LIBS="$LIBS"
+                       AC_CHECK_LIB(pthreads, pthread_join, [
+                               ol_link_threads=posix
+                               LTHREAD_LIBS="$LTHREAD_LIBS -lpthreads"
+                               ],:,[-Wl,-woff,85])
+                       LIBS="$save_LIBS"
+               fi
+
+               dnl HP-UX 11 Pthread check
+               if test $ol_link_threads = no; then
+                       save_LIBS="$LIBS"
+                       LIBS="$LIBS -lpthread"
+                       AC_MSG_CHECKING([for pthread_create() in HP-UX -lpthread])
+                       ol_try_pthread_hpux_11=no
+                       AC_CACHE_VAL(ol_cv_pthread_hpux_11,[
+                               AC_TRY_LINK([
+#include <pthread.h>
+#include <elf.h>
+#ifndef ELFABI_HPUX_REL11
+       die horribly
+#endif
+                               ], [pthread_create(NULL, NULL, NULL, NULL);],
+                                       ol_try_pthread_hpux_11=yes
+                                       ol_cv_pthread_hpux_11=yes,
+                                       ol_cv_pthread_hpux_11=no)])
+                       AC_MSG_RESULT(yes)
+                       LIBS="$save_LIBS"
+
+                       if test $ol_cv_pthread_hpux_11=yes ; then
+                               ol_link_threads=posix
+                               LTHREAD_LIBS="$LTHREAD_LIBS -lpthread"
+                               if test $ol_try_pthread_hpux_11=yes ; then
+                                       dnl Some tests below may fail, cause we aint including
+                                       dnl pthread.h. Force appropriate ones to yes
+                                       ac_cv_func_pthread_attr_init=yes
+                               fi
+                       fi
+               fi
+
+               if test $ol_link_threads = no ; then
+                       dnl try -threads
+                       AC_CACHE_CHECK([for pthread_create with -threads],
+                               [ol_cv_thread_flag], [
+                               dnl save the flags
+                               save_LIBS="$LIBS"
+                               LIBS="-threads $LIBS"
+                               AC_TRY_LINK([char pthread_create();],[
+                                       pthread_create();
+                                       ], ol_cv_thread_flag=yes, ol_cv_thread_flag=no)
+                               dnl restore the LIBS
+                               LIBS="$save_LIBS"
+                       ])
+
+                       if test $ol_cv_thread_flag = yes ; then
+                               LTHREAD_LIBS="$LTHREAD_LIBS -threads"
+                               ol_link_threads=posix
+                       fi
+               fi
+
+               if test $ol_link_threads = no ; then
+                       dnl try DEC Threads -lpthreads -lmach -lexc -lc_r
+                       save_LIBS="$LIBS"
+                       AC_CHECK_LIB(pthreads, pthread_mutex_unlock, [
+                               ol_link_threads=posix
+                               LTHREAD_LIBS="$LTHREAD_LIBS -lpthreads -lmach -lexc -lc_r"
+                               if test $ol_with_yielding_select = auto ; then
+                                       ol_with_yielding_select=yes
+                               fi
+                               ],:,[-lmach -lexc -lc_r])
+                       LIBS="$save_LIBS"
+               fi
+
+               if test $ol_link_threads = no ; then
+                       dnl try DEC Threads -lpthreads -lmach -lexc
+                       save_LIBS="$LIBS"
+                       AC_CHECK_LIB(pthreads, pthread_mutex_lock, [
+                               ol_link_threads=posix
+                               LTHREAD_LIBS="$LTHREAD_LIBS -lpthreads -lmach -lexc"
+                               if test $ol_with_yielding_select = auto ; then
+                                       ol_with_yielding_select=yes
+                               fi
+                               ],:,[-lmach -lexc])
+                       LIBS="$save_LIBS"
+               fi
+
+               if test $ol_link_threads = no ; then
+                       dnl try DEC Threads -lpthreads -lexc
+                       save_LIBS="$LIBS"
+                       AC_CHECK_LIB(pthreads, pthread_mutex_trylock, [
+                               ol_link_threads=posix
+                               LTHREAD_LIBS="$LTHREAD_LIBS -lpthreads -lexc"
+                               if test $ol_with_yielding_select = auto ; then
+                                       ol_with_yielding_select=yes
+                               fi
+                               ],:,[-lexc])
                        LIBS="$save_LIBS"
                fi
 
                if test $ol_link_threads != no ; then
-                       AC_DEFINE(HAVE_PTHREADS)
+                       AC_DEFINE(HAVE_PTHREADS,1,
+                               [define if you have POSIX Threads])
 
                        dnl save flags
                        save_CPPFLAGS="$CPPFLAGS"
@@ -478,30 +770,42 @@ if test $ol_with_threads = auto -o $ol_with_threads = posix ; then
                        if test $ac_cv_func_sched_yield = no -a \
                                $ac_cv_func_pthread_yield = no ; then
                                dnl Solaris has sched_yield() in -lposix4
-                               AC_CHECK_LIB(posix4, sched_yield,
-                                       [LTHREAD_LIBS="$LTHREAD_LIBS -lposix4"
-                                       AC_DEFINE(HAVE_SCHED_YIELD,1)
-                                       ac_cv_func_sched_yield=yes],
-                                       [ac_cv_func_sched_yield=no])
+                               dnl but we'll use thr_yield instead.
+                               AC_CHECK_FUNCS(thr_yield)
                        fi
                        if test $ac_cv_func_sched_yield = no -a \
-                               $ac_cv_func_pthread_yield = no ; then
+                               $ac_cv_func_pthread_yield = no -a \
+                               "$ac_cv_func_thr_yield" = no ; then
                                AC_MSG_WARN([could not locate sched_yield() or pthread_yield()])
-                               AC_MSG_ERROR([POSIX Threads are not usable])
                        fi
 
                        dnl Check functions for compatibility
                        AC_CHECK_FUNCS(pthread_kill)
-                       AC_CHECK_FUNCS( \
-                               pthread_attr_create pthread_attr_init \
-                               pthread_attr_destroy pthread_attr_delete \
-                               pthread_attr_setdetachstate pthread_attr_setdetach_np \
-                       )
+
+                       dnl Check for pthread_detach with <pthread.h> inclusion
+                       dnl as it's symbol may have been mangled.
+                       AC_CACHE_CHECK([for pthread_detach with <pthread.h>],
+                               [ol_cv_func_pthread_detach], [
+                               dnl save the flags
+                               AC_TRY_LINK([#include <pthread.h>],
+                                       [pthread_detach(NULL);],
+                                       [ol_cv_func_pthread_detach=yes],
+                                       [ol_cv_func_pthread_detach=no])
+                       ])
+
+                       if test $ol_cv_func_pthread_detach = no ; then
+                               AC_MSG_ERROR([could not locate pthread_detach()])
+                       fi
+
+                       AC_DEFINE(HAVE_PTHREAD_DETACH,1,
+                               [define if you have pthread_detach function])
 
                        dnl Check for setconcurreny functions
                        AC_CHECK_FUNCS( \
                                pthread_setconcurrency \
+                               pthread_getconcurrency \
                                thr_setconcurrency \
+                               thr_getconcurrency \
                        )
 
                        AC_MSG_CHECKING([if pthread_create() works])
@@ -570,10 +874,10 @@ static void *task(p)
 
        if(i < 0) {
                perror("select");
-               exit(0);
+               exit(10);
        }
 
-       exit(1); /* if we exit here, the select blocked the whole process */
+       exit(0); /* if we exit here, the select blocked the whole process */
 }
 
 int main(argc, argv)
@@ -585,7 +889,7 @@ int main(argc, argv)
        /* create a pipe to select */
        if(pipe(&fildes[0])) {
                perror("select");
-               exit(0);
+               exit(1);
        }
 
 #ifdef HAVE_PTHREAD_SETCONCURRENCY
@@ -606,10 +910,11 @@ int main(argc, argv)
        pthread_yield();        /* make sure task runs first */
 #endif
 #endif
-       exit(0);
+
+       exit(2);
 }],
-                               [ol_cv_pthread_select_yields=yes],
-                               [ol_cv_pthread_select_yields=no], [
+                               [ol_cv_pthread_select_yields=no],
+                               [ol_cv_pthread_select_yields=yes], [
                                AC_MSG_ERROR([crossing compiling: use --with-yielding_select=yes|no|manual])])])
                                AC_MSG_RESULT($ol_cv_pthread_select_yields)
 
@@ -618,17 +923,6 @@ int main(argc, argv)
                                fi
                        fi
 
-dnl                    dnl check for reentrant/threadsafe functions
-dnl                    AC_CHECK_FUNCS( \
-dnl                            feof_unlocked \
-dnl                            unlocked_feof \
-dnl                            ftrylockfile \
-dnl                            flockfile \
-dnl                            putc_unlocked \
-dnl                            gmtime_r \
-dnl                            strtok_r \
-dnl                    )
-
                        dnl restore flags
                        CPPFLAGS="$save_CPPFLAGS"
                        LIBS="$save_LIBS"
@@ -642,7 +936,9 @@ dnl                 )
        fi
 fi
 
-if test $ol_with_threads = auto -o $ol_with_threads = mach ; then
+if test $ol_with_threads = auto -o $ol_with_threads = yes \
+       -o $ol_with_threads = mach ; then
+
        dnl check for Mach CThreads
        AC_CHECK_HEADERS(mach/cthreads.h)
        if test $ac_cv_header_mach_cthreads_h = yes ; then
@@ -674,7 +970,8 @@ if test $ol_with_threads = auto -o $ol_with_threads = mach ; then
 
                if test $ol_link_threads != no ; then
                        : check for cthread specific functionality here
-                       AC_DEFINE(HAVE_MACH_CTHREADS,1)
+                       AC_DEFINE(HAVE_MACH_CTHREADS,1,
+                               [define if you have Mach Cthreads])
                else
                        AC_MSG_ERROR([could not link with Mach CThreads])
                fi
@@ -685,20 +982,51 @@ if test $ol_with_threads = auto -o $ol_with_threads = mach ; then
        fi
 fi
 
-if test $ol_with_threads = auto -o $ol_with_threads = lwp ; then
+if test $ol_with_threads = auto -o $ol_with_threads = yes \
+       -o $ol_with_threads = pth ; then
+
+       dnl check for GNU Pth
+       AC_CHECK_HEADERS(pth.h)
+       if test $ac_cv_header_pth_h = yes ; then
+
+               dnl check for pth lib
+               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
+               fi
+
+               if test $ol_with_yielding_select = auto ; then
+                       ol_with_yielding_select=yes
+               fi
+       fi
+fi
+
+if test $ol_with_threads = auto -o $ol_with_threads = yes \
+       -o $ol_with_threads = lwp ; then
+
        dnl check for SunOS5 LWP
        AC_CHECK_HEADERS(thread.h synch.h)
        if test $ac_cv_header_thread_h = yes -a $ac_cv_header_synch_h = yes ; then
                AC_CHECK_LIB(thread, thr_create, [have_thr=yes], [have_thr=no])
 
                if test $have_thr = yes ; then
-                       AC_DEFINE(HAVE_THR)
+                       AC_DEFINE(HAVE_THR,1,
+                               [if you have Solaris LWP (thr) package])
                        LTHREAD_LIBS="$LTHREAD_LIBS -lthread"
                        ol_link_threads=thr
 
                        if test $ol_with_yielding_select = auto ; then
                                ol_with_yielding_select=yes
                        fi
+
+                       dnl Check for setconcurreny functions
+                       AC_CHECK_FUNCS( \
+                               thr_setconcurrency \
+                               thr_getconcurrency \
+                       )
                fi
        fi
 
@@ -708,7 +1036,8 @@ if test $ol_with_threads = auto -o $ol_with_threads = lwp ; then
                AC_CHECK_LIB(lwp, lwp_create, [have_lwp=yes], [have_lwp=no])
 
                if test $have_lwp = yes ; then
-                       AC_DEFINE(HAVE_LWP)
+                       AC_DEFINE(HAVE_LWP,1,
+                               [if you have SunOS LWP package])
                        LTHREAD_LIBS="$LTHREAD_LIBS -llwp"
                        ol_link_threads=lwp
 
@@ -720,7 +1049,8 @@ if test $ol_with_threads = auto -o $ol_with_threads = lwp ; then
 fi
 
 if test $ol_with_yielding_select = yes ; then
-       AC_DEFINE(HAVE_YIELDING_SELECT,1)
+       AC_DEFINE(HAVE_YIELDING_SELECT,1,
+               [define if select implicitly yields])
 fi
 
 if test $ol_with_threads = manual ; then
@@ -738,7 +1068,7 @@ if test $ol_with_threads = manual ; then
        AC_CHECK_HEADERS(thread.h synch.h)
 fi
 
-if test $ol_with_threads != no ; then  
+if test $ol_link_threads != no ; then  
        dnl needed to get reentrant/threadsafe versions
        dnl
        AC_DEFINE(REENTRANT,1)
@@ -747,6 +1077,7 @@ if test $ol_with_threads != no ; then
        AC_DEFINE(_THREAD_SAFE,1)
        AC_DEFINE(THREADSAFE,1)
        AC_DEFINE(_THREADSAFE,1)
+        AC_DEFINE(_SGI_MP_SOURCE,1)
 
        dnl this might cause the errno symbol to be
        dnl replaced with a function to get a thread specific errno.
@@ -754,11 +1085,7 @@ if test $ol_with_threads != no ; then
        dnl with the thread libraries
        AC_CACHE_CHECK([for thread specific errno],
                [ol_cv_errno_thread_specific], [
-               AC_TRY_LINK([
-#include <errno.h>
-                       ], [
-int x = errno;
-                       ],
+               AC_TRY_LINK([#include <errno.h>], [int x = errno;],
                        [ol_cv_errno_thread_specific=yes],
                        [ol_cv_errno_thread_specific=no])
        ])
@@ -781,7 +1108,8 @@ if test $ol_link_threads = no ; then
                ol_with_threads=no
        fi
 
-       AC_DEFINE(NO_THREADS,1)
+       AC_DEFINE(NO_THREADS,1,
+               [define if you have (or want) no threads])
        LTHREAD_LIBS=""
 fi
 
@@ -855,14 +1183,22 @@ if test $ol_with_ldbm_api = auto -o $ol_with_ldbm_api = gdbm ; then
        fi
 fi
 
-if test $ol_with_ldbm_api = auto -o $ol_with_ldbm_api = ndbm ; then
-       OL_NDBM
+if test $ol_with_ldbm_api = auto -o $ol_with_ldbm_api = mdbm ; then
+       OL_MDBM
 
-       if test $ol_cv_ndbm = yes ; then
-               if test $ol_with_ldbm_api = auto ; then
-                       AC_MSG_WARN([Attempting to use NDBM.  Functionality will be limited.])
+       if test $ol_cv_mdbm = yes ; then
+               ol_link_ldbm=mdbm
+               ol_with_ldbm_api=mdbm
+               if test $ol_cv_lib_mdbm != yes ; then
+                       LDBM_LIBS="$LDBM_LIBS $ol_cv_lib_mdbm"
                fi
+       fi
+fi
 
+if test $ol_with_ldbm_api = ndbm ; then
+       OL_NDBM
+
+       if test $ol_cv_ndbm = yes ; then
                ol_link_ldbm=ndbm
                ol_with_ldbm_api=ndbm
 
@@ -882,13 +1218,25 @@ if test $ol_link_ldbm = no -a $ol_enable_ldbm != no ; then
        ol_enable_ldbm=no
 fi
 
-if test $ol_enable_wrappers = yes ; then
-       AC_CHECK_LIB(wrap, hosts_access,
-               [have_wrappers=yes], [have_wrappers=no])
+if test $ol_enable_wrappers != no ; then
+       AC_CHECK_HEADERS(tcpd.h)
+
+       if test $ac_cv_header_tcpd_h != yes ; then
+               have_wrappers=no
+       else
+               AC_TRY_COMPILE([
+int allow_severity = 0;
+int deny_severity  = 0;
+               ],[hosts_access()],[have_wrappers=yes],[have_wrappers=no])
+       fi
 
        if test $have_wrappers = yes ; then
-               AC_DEFINE(HAVE_TCPD)
-               SLAPD_LIBS="$SLAPD_LIBS -lwrap"
+               AC_DEFINE(HAVE_TCPD,1, [define if you have -lwrap])
+               WRAP_LIBS="-lwrap"
+
+               dnl We add another check for -lnsl since some libwrap's
+               dnl need it, but it isn't always included from above
+               AC_CHECK_LIB(nsl, main)
        else
                AC_MSG_WARN(could not find -lwrap)
                if test $ol_enable_wrappers = yes ; then
@@ -897,8 +1245,13 @@ if test $ol_enable_wrappers = yes ; then
 
                AC_MSG_WARN(disabling wrappers support)
                ol_enable_wrappers=no
+               WRAP_LIBS=""
        fi
+fi
 
+if test $ol_enable_dmalloc != no ; then
+       AC_CHECK_HEADERS(dmalloc.h)
+       AC_CHECK_LIB(dmalloc, dmalloc_shutdown)
 fi
 
 # ud needs termcap (should insert check here)
@@ -908,7 +1261,7 @@ AC_CHECK_HEADERS(termcap.h ncurses.h)
 if test $ol_link_termcap = no ; then
        AC_CHECK_LIB(termcap, tputs, [have_termcap=yes], [have_termcap=no])
        if test $have_termcap = yes ; then
-               AC_DEFINE(HAVE_TERMCAP)
+               AC_DEFINE(HAVE_TERMCAP, 1, [define if you have -ltermcap])
                ol_link_termcap=yes
                TERMCAP_LIBS=-ltermcap
        fi
@@ -917,14 +1270,14 @@ fi
 if test $ol_link_termcap = no ; then
        AC_CHECK_LIB(ncurses, initscr, [have_ncurses=yes], [have_ncurses=no])
        if test $have_ncurses = yes ; then
-               AC_DEFINE(HAVE_NCURSES)
+               AC_DEFINE(HAVE_NCURSES, 1, [define if you have -lncurses])
                ol_link_termcap=yes
                TERMCAP_LIBS=-lncurses
        fi
 fi
 
 if test $ol_link_termcap = no ; then
-       AC_DEFINE(NO_TERMCAP,1)
+       AC_DEFINE(NO_TERMCAP,1, [define if you have no termcap support])
        TERMCAP_LIBS=
 fi
 
@@ -973,10 +1326,12 @@ AC_HEADER_DIRENT
 AC_HEADER_SYS_WAIT
 AM_HEADER_TIOCGWINSZ_NEEDS_SYS_IOCTL
 if test $am_cv_sys_posix_termios = yes ; then
-       AC_DEFINE(HAVE_POSIX_TERMIOS,1)
+       AC_DEFINE(HAVE_POSIX_TERMIOS,1,
+               [define if you have POSIX termios])
 fi
 
 AC_CHECK_HEADERS(      \
+       arpa/nameser.h  \
        crypt.h                 \
        errno.h                 \
        fcntl.h                 \
@@ -986,9 +1341,11 @@ AC_CHECK_HEADERS( \
        limits.h                \
        malloc.h                \
        memory.h                \
+       netinet/tcp.h   \
        regex.h                 \
        psap.h                  \
        pwd.h                   \
+       resolv.h                \
        sgtty.h                 \
        stdarg.h                \
        stddef.h                \
@@ -1000,6 +1357,7 @@ AC_CHECK_HEADERS( \
        sys/ioctl.h             \
        sys/param.h             \
        sys/resource.h  \
+       sys/select.h    \
        sys/socket.h    \
        sys/syslog.h    \
        sys/time.h              \
@@ -1026,7 +1384,7 @@ OL_C_UPPER_LOWER
 AC_C_CONST
 
 if test $cross_compiling = yes ; then
-       AC_DEFINE(CROSS_COMPILING, 1)
+       AC_DEFINE(CROSS_COMPILING, 1, [define if cross compiling])
 else
        AC_C_BIGENDIAN
        AC_CHECK_SIZEOF(short) 
@@ -1044,14 +1402,15 @@ AC_FUNC_VPRINTF
 
 if test $ac_cv_func_vprintf = yes ; then
        dnl check for vsnprintf
-       AC_CHECK_FUNCS(vsnprintf)
+       AC_CHECK_FUNCS(vsnprintf vsprintf)
 fi
 
-AC_FUNC_WAIT3
-
 AC_CHECK_FUNCS(                \
        bcopy                   \
+       closesocket             \
        flock                   \
+       getpass                 \
+       getpassphrase   \
        getdtablesize   \
        gethostname             \
        getpwuid                \
@@ -1060,7 +1419,6 @@ AC_CHECK_FUNCS(           \
        memcpy                  \
        memmove                 \
        mkstemp                 \
-       res_search              \
        select                  \
        setpwfile               \
        setsid                  \
@@ -1090,71 +1448,68 @@ OL_SYS_ERRLIST
 dnl ----------------------------------------------------------------
 dnl Sort out defines
 
-if test $ol_enable_debug != no ; then
+if test "$ol_enable_debug" != no ; then
        AC_DEFINE(LDAP_DEBUG,1)
 fi
-dnl    if test $ol_enable_syslog != no ; then
-dnl            AC_DEFINE(LDAP_SYSLOG,1)
-dnl    fi
-if test $ol_enable_libui = yes ; then
+if test "$ol_enable_libui" = yes ; then
        AC_DEFINE(LDAP_LIBUI,1)
 fi
-if test $ol_enable_cache = no ; then
+if test "$ol_enable_cache" = no ; then
        AC_DEFINE(LDAP_NOCACHE,1)
 fi
-if test $ol_enable_dns != no ; then
+if test "$ol_enable_dns" != no ; then
        AC_DEFINE(LDAP_DNS,1)
 fi
-if test $ol_enable_proctitle != no ; then
+if test "$ol_enable_proctitle" != no ; then
        AC_DEFINE(LDAP_PROCTITLE,1)
 fi
-if test $ol_enable_referrals != no ; then
+if test "$ol_enable_referrals" != no ; then
        AC_DEFINE(LDAP_REFERRALS,1)
 fi
-if test $ol_enable_cldap != no ; then
+if test "$ol_enable_cldap" != no ; then
        AC_DEFINE(LDAP_CONNECTIONLESS,1)
 fi
 
-if test $ol_enable_aclgroups != no ; then
+if test "$ol_enable_aclgroups" != no ; then
        AC_DEFINE(SLAPD_ACLGROUPS,1)
 fi
-if test $ol_enable_crypt != no ; then
+if test "$ol_enable_crypt" != no ; then
        AC_DEFINE(SLAPD_CRYPT,1)
 fi
-if test $ol_enable_cleartext != no ; then
+if test "$ol_enable_cleartext" != no ; then
        AC_DEFINE(SLAPD_CLEARTEXT,1)
 fi
-if test $ol_enable_phonetic != no ; then
+if test "$ol_enable_phonetic" != no ; then
        AC_DEFINE(SLAPD_PHONETIC,1)
 fi
-if test $ol_enable_rlookups != no ; then
+if test "$ol_enable_rlookups" != no ; then
        AC_DEFINE(SLAPD_RLOOKUPS,1)
 fi
 
-if test $ol_link_ldbm != no ; then
+if test "$ol_link_ldbm" != no ; then
        AC_DEFINE(SLAPD_LDBM,1)
        BUILD_SLAPD=yes
        BUILD_LDBM=yes
 fi
 
-if test $ol_enable_passwd != no ; then
+if test "$ol_enable_passwd" != no ; then
        AC_DEFINE(SLAPD_PASSWD,1)
        BUILD_SLAPD=yes
        BUILD_PASSWD=yes
 fi
 
-if test $ol_enable_shell != no ; then
+if test "$ol_enable_shell" != no ; then
        AC_DEFINE(SLAPD_SHELL,1)
        BUILD_SLAPD=yes
        BUILD_SHELL=yes
 fi
 
-if test $ol_enable_slurpd != no -a $ol_link_threads != no -a \
+if test "$ol_enable_slurpd" != no -a "$ol_link_threads" != no -a \
        $BUILD_SLAPD = yes ; then
        BUILD_SLURPD=yes
 fi
 
-if test $ol_link_isode != no ; then
+if test "$ol_link_isode" != no ; then
        BUILD_LDAPD=yes
 fi
 
@@ -1167,7 +1522,6 @@ AC_SUBST(BUILD_SLAPD)
   AC_SUBST(BUILD_SHELL)
 AC_SUBST(BUILD_SLURPD)
 
-
 AC_SUBST(LDAP_LIBS)
 AC_SUBST(LDAPD_LIBS)
 AC_SUBST(SLAPD_LIBS)
@@ -1175,7 +1529,7 @@ AC_SUBST(SLURPD_LIBS)
 AC_SUBST(LDBM_LIBS)
 AC_SUBST(LTHREAD_LIBS)
 AC_SUBST(LUTIL_LIBS)
-
+AC_SUBST(WRAP_LIBS)
 AC_SUBST(KRB_LIBS)
 AC_SUBST(TERMCAP_LIBS)