s3: quiet the unresolved symbol warnings of the Compaq compiler when linking our...
[ira/wip.git] / source3 / configure.in
index af52c933bdf5a5fd9f76802939b6f739e1d4e1d3..1f696099230002e700afeb8fca9411f4abbbf2a2 100644 (file)
@@ -120,6 +120,7 @@ fi
 
 m4_include(../lib/socket_wrapper/config.m4)
 m4_include(../lib/nss_wrapper/config.m4)
+m4_include(../lib/util/time.m4)
 
 m4_include(m4/swat.m4)
 
@@ -438,6 +439,7 @@ default_shared_modules="$default_shared_modules vfs_acl_tdb"
 default_shared_modules="$default_shared_modules vfs_smb_traffic_analyzer"
 default_shared_modules="$default_shared_modules vfs_preopen"
 default_shared_modules="$default_shared_modules vfs_catia"
+default_shared_modules="$default_shared_modules vfs_scannedonly"
 
 if test "x$developer" = xyes; then
    default_static_modules="$default_static_modules rpc_rpcecho pdb_ads"
@@ -707,7 +709,7 @@ AUTH_LIBS="${AUTH_LIBS} ${CRYPT_LIBS}"
 
 AC_CHECK_HEADERS(aio.h sys/fcntl.h sys/select.h fcntl.h sys/time.h sys/unistd.h rpc/nettype.h)
 AC_CHECK_HEADERS(unistd.h grp.h sys/id.h memory.h alloca.h)
-AC_CHECK_HEADERS(limits.h float.h pthread.h libintl.h)
+AC_CHECK_HEADERS(limits.h float.h libintl.h)
 AC_CHECK_HEADERS(rpc/rpc.h rpcsvc/nis.h rpcsvc/ypclnt.h)
 AC_CHECK_HEADERS(sys/param.h ctype.h sys/wait.h sys/resource.h sys/ioctl.h sys/ipc.h sys/prctl.h sys/sysctl.h)
 AC_CHECK_HEADERS(sys/mman.h sys/filio.h sys/priv.h sys/shm.h string.h strings.h stdlib.h)
@@ -1057,7 +1059,7 @@ AC_CHECK_FUNCS(setsid glob strpbrk crypt16 getauthuid)
 AC_CHECK_FUNCS(sigprocmask sigblock sigaction sigset innetgr setnetgrent getnetgrent endnetgrent)
 AC_CHECK_FUNCS(initgroups select poll rdchk getgrnam getgrent pathconf)
 AC_CHECK_FUNCS(setpriv setgidx setuidx setgroups sysconf stat64 fstat64)
-AC_CHECK_FUNCS(lstat64 fopen64 atexit grantpt lseek64 ftruncate64)
+AC_CHECK_FUNCS(lstat64 fopen64 atexit grantpt lseek64 ftruncate64 posix_fallocate posix_fallocate64)
 AC_CHECK_FUNCS(fseek64 fseeko64 ftell64 ftello64 setluid getpwanam)
 AC_CHECK_FUNCS(opendir64 readdir64 seekdir64 telldir64 rewinddir64 closedir64)
 AC_CHECK_FUNCS(getpwent_r)
@@ -1066,7 +1068,7 @@ AC_CHECK_FUNCS(setenv strcasecmp fcvt fcvtl)
 AC_CHECK_FUNCS(syslog vsyslog timegm)
 AC_CHECK_FUNCS(setlocale nl_langinfo)
 AC_CHECK_FUNCS(nanosleep,,[AC_CHECK_LIB_EXT(rt, LIBS, nanosleep)])
-AC_CHECK_FUNCS(utimensat)
+AC_CHECK_FUNCS(lutimes futimes utimensat futimens)
 AC_CHECK_FUNCS(mlock munlock mlockall munlockall)
 AC_CHECK_FUNCS(memalign posix_memalign hstrerror)
 AC_CHECK_HEADERS(sys/mman.h)
@@ -1244,7 +1246,7 @@ AC_DEFINE(HAVE_PRCTL, 1, [Whether prctl is available]),[])
 case "$host_os" in
     *linux* | gnu* | k*bsd*-gnu | kopensolaris*-gnu)
        # glibc <= 2.3.2 has a broken getgrouplist
-       AC_TRY_RUN([
+       AC_CACHE_CHECK([for good getgrouplist],samba_cv_linux_getgrouplist_ok,[AC_TRY_RUN([
 #include <unistd.h>
 #include <sys/utsname.h>
 main() {
@@ -1260,8 +1262,10 @@ main() {
 #endif
        exit(0);
 }
-], [linux_getgrouplist_ok=yes], [linux_getgrouplist_ok=no])
-       if test x"$linux_getgrouplist_ok" = x"yes"; then
+], [samba_cv_linux_getgrouplist_ok=yes],
+   [samba_cv_linux_getgrouplist_ok=no],
+   [samba_cv_linux_getgrouplist_ok=cross])])
+       if test x"$samba_cv_linux_getgrouplist_ok" = x"yes"; then
           AC_DEFINE(HAVE_GETGROUPLIST, 1, [Have good getgrouplist])
        fi
        ;;
@@ -1394,7 +1398,7 @@ AC_LIBTESTFUNC(sec, getprpwnam)
 AC_CHECK_FUNCS(strsignal)
 
 ############################################
-# Check if we have libattr
+# Check for EA implementations
 case "$host_os" in
   *osf*)
        AC_SEARCH_LIBS(getproplist, [proplist])
@@ -1402,24 +1406,27 @@ case "$host_os" in
        AC_CHECK_FUNCS(delproplist fdelproplist add_proplist_entry get_proplist_entry)
        AC_CHECK_FUNCS(sizeof_proplist_entry)
   ;;
-  *)
-       AC_SEARCH_LIBS(getxattr, [attr])
-       AC_CHECK_FUNCS(getxattr lgetxattr fgetxattr listxattr llistxattr)
-       AC_CHECK_FUNCS(getea fgetea lgetea listea flistea llistea)
-       AC_CHECK_FUNCS(removeea fremoveea lremoveea setea fsetea lsetea)
-       AC_CHECK_FUNCS(flistxattr removexattr lremovexattr fremovexattr)
-       AC_CHECK_FUNCS(setxattr lsetxattr fsetxattr)
-       AC_CHECK_FUNCS(attr_get attr_list attr_set attr_remove)
-       AC_CHECK_FUNCS(attr_getf attr_listf attr_setf attr_removef)
+  *freebsd4* | *dragonfly* )
+       AC_DEFINE(BROKEN_EXTATTR, 1, [Does extattr API work])
   ;;
-esac
-
-########################################################
-# Check if attropen() is present if this is Solaris
-case "$host_os" in
   *solaris*)
        AC_CHECK_FUNCS(attropen)
   ;;
+  *)
+       AC_SEARCH_LIBS(getxattr, [attr])
+       AC_CHECK_FUNCS(getxattr,[
+               AC_CHECK_FUNCS(lgetxattr fgetxattr listxattr llistxattr flistxattr removexattr lremovexattr fremovexattr setxattr lsetxattr fsetxattr)
+               ])
+       AC_CHECK_FUNCS(getea,[
+               AC_CHECK_FUNCS(fgetea lgetea listea flistea llistea removeea fremoveea lremoveea setea fsetea lsetea)
+               ])
+       AC_CHECK_FUNCS(attr_get,[
+               AC_CHECK_FUNCS(attr_list attr_set attr_remove attr_getf attr_listf attr_setf attr_removef)
+               ])
+       AC_CHECK_FUNCS(extattr_delete_file,[
+               AC_CHECK_FUNCS(extattr_delete_fd extattr_delete_link extattr_get_fd extattr_get_file extattr_get_link extattr_list_fd extattr_list_file extattr_list_link extattr_set_fd extattr_set_file extattr_set_link)
+               ])
+  ;;
 esac
 
 ########################################################
@@ -1446,19 +1453,6 @@ if test x"$ac_cv_func_getxattr" = x"yes" ; then
        fi
 fi
 
-# Check if we have extattr
-case "$host_os" in
-  *freebsd4* | *dragonfly* )
-    AC_DEFINE(BROKEN_EXTATTR, 1, [Does extattr API work])
-    ;;
-  *)
-    AC_CHECK_FUNCS(extattr_delete_fd extattr_delete_file extattr_delete_link)
-    AC_CHECK_FUNCS(extattr_get_fd extattr_get_file extattr_get_link)
-    AC_CHECK_FUNCS(extattr_list_fd extattr_list_file extattr_list_link)
-    AC_CHECK_FUNCS(extattr_set_fd extattr_set_file extattr_set_link)
-    ;;
-esac
-
 AC_DISABLE_STATIC
 AC_ENABLE_SHARED
 
@@ -1541,9 +1535,10 @@ DSO_EXPORTS=""
 
   # and these are for particular systems
   case "$host_os" in
-               *linux* | gnu* | k*bsd*-gnu | kopensolaris*-gnu)
-                       case "$host_os" in *linux*)
-                               AC_DEFINE(LINUX,1,[Whether the host os is linux]) ;;
+               *linux* | gnu* | k*bsd*-gnu | kopensolaris*-gnu | *qnx*)
+                       case "$host_os" in
+                               *linux*) AC_DEFINE(LINUX,1,[Whether the host os is linux]) ;;
+                               *qnx*) AC_DEFINE(QNX,1,[Whether the host os is qnx]) ;;
                        esac
                        BLDSHARED="true"
                        LDSHFLAGS="-shared -Wl,-Bsymbolic"
@@ -1656,9 +1651,6 @@ DSO_EXPORTS=""
                        AC_DEFINE(STAT_ST_BLOCKSIZE,8192,[The size of a block])
                        AC_DEFINE(POSIX_ACL_NEEDS_MASK,1,[Does a POSIX ACL need a mask element])
                        ;;
-               *qnx*) AC_DEFINE(QNX,1,[Whether the host os is qnx])
-                       AC_DEFINE(STAT_ST_BLOCKSIZE,512)
-                       ;;
                *osf*) AC_DEFINE(OSF1,1,[Whether the host os is osf1])
                        BLDSHARED="true"
                        LDSHFLAGS="-shared"
@@ -1666,6 +1658,17 @@ DSO_EXPORTS=""
                        PICFLAG="-fPIC"
                        AC_DEFINE(STAT_ST_BLOCKSIZE,512)
                        AC_DEFINE(BROKEN_GETGRNAM,1,[Does getgrnam work correctly])
+                       for flags in "-expect_unresolved '*'" "-Wl,-expect_unresolved,'*'" ; do
+                               saved_ldflags="$LDFLAGS"
+                               AC_MSG_CHECKING([if $flags works])
+                               LDFLAGS="$flags $saved_ldflags"
+                               AC_TRY_LINK([],[],
+                                       [AC_MSG_RESULT([yes])
+                                       LDSHFLAGS_Z_NODEFS=$flags],
+                                       AC_MSG_RESULT([no]))
+                               LDFLAGS="$saved_ldflags"
+                               test x"$LDSHFLAGS_Z_NODEFS" != x && break
+                       done
                        ;;
                *sco*) AC_DEFINE(SCO,1,[Whether the host os is sco unix])
                        AC_DEFINE(STAT_ST_BLOCKSIZE,512)
@@ -1973,7 +1976,7 @@ AC_ARG_ENABLE(external_libtdb,
 
 if test "x$enable_external_libtdb" != xno
 then
-       PKG_CHECK_MODULES(LIBTDB, tdb >= 1.2.0,
+       PKG_CHECK_MODULES(LIBTDB, tdb >= 1.2.1,
                [ enable_external_libtdb=yes ],
                [
                if test x$enable_external_libtdb = xyes; then
@@ -2006,6 +2009,16 @@ then
        AC_SUBST(TDBTOOL)
        TDBTORTURE="bin/tdbtorture\$(EXEEXT)"
        AC_SUBST(TDBTORTURE)
+       ac_cv_have_tdb_err_nesting=yes
+else
+       AC_TRY_COMPILE([#include "tdb.h"],
+                      [enum TDB_ERROR err = TDB_ERR_NESTING],
+                      ac_cv_have_tdb_err_nesting=yes,
+                      ac_cv_have_tdb_err_nesting=no)
+fi
+
+if test x"$ac_cv_have_tdb_err_nesting" = xyes; then
+   AC_DEFINE(HAVE_TDB_ERR_NESTING, 1, [Whether we have TDB_ERR_NESTING])
 fi
 
 SMB_LIBRARY(netapi, 0)
@@ -2208,15 +2221,6 @@ if test x"$samba_cv_HAVE_FUNCTION_MACRO" = x"yes"; then
     AC_DEFINE(HAVE_FUNCTION_MACRO,1,[Whether there is a __FUNCTION__ macro])
 fi
 
-AC_CACHE_CHECK([if gettimeofday takes tz argument],samba_cv_HAVE_GETTIMEOFDAY_TZ,[
-AC_TRY_LINK([
-#include <sys/time.h>
-#include <unistd.h>], [struct timeval tv; return gettimeofday(&tv, NULL);],
-           samba_cv_HAVE_GETTIMEOFDAY_TZ=yes,
-          samba_cv_HAVE_GETTIMEOFDAY_TZ=no)])
-if test x"$samba_cv_HAVE_GETTIMEOFDAY_TZ" = x"yes"; then
-    AC_DEFINE(HAVE_GETTIMEOFDAY_TZ,1,[Whether gettimeofday takes a tz argument])
-fi
 
 if test x"$samba_cv_WITH_PROFILE" = x"yes"; then
 
@@ -2264,7 +2268,7 @@ dnl  We need to check for many of them
 dnl  But we don't need to do each and every one, because our code uses
 dnl  mostly just the utmp (not utmpx) fields.
 
-AC_CHECK_FUNCS(pututline pututxline updwtmp updwtmpx getutmpx)
+AC_CHECK_FUNCS(pututline pututxline updwtmp updwtmpx getutmpx getutxent)
 
 AC_CACHE_CHECK([for ut_name in utmp],samba_cv_HAVE_UT_UT_NAME,[
 AC_TRY_COMPILE([#include <sys/types.h>
@@ -2969,6 +2973,22 @@ exit(1);
   fi
 fi
 
+# glibc up to 2.3.6 had dangerously broken posix_fallocate(). DON'T USE IT.
+AC_CACHE_CHECK([for broken posix_fallocate],samba_cv_HAVE_BROKEN_POSIX_FALLOCATE,[
+AC_TRY_COMPILE([
+  #define _XOPEN_SOURCE 600
+  #include <stdlib.h>
+  #if defined(__GLIBC__) && ((__GLIBC__ < 2) || (__GLIBC__ == 2 && __GLIBC_MINOR__ < 4))
+    probably broken posix_fallocate
+  #endif
+], [
+], 
+samba_cv_HAVE_BROKEN_POSIX_FALLOCATE=no,samba_cv_HAVE_BROKEN_POSIX_FALLOCATE=yes)])
+if test x"$samba_cv_HAVE_BROKEN_POSIX_FALLOCATE" = xyes; then
+       AC_DEFINE(HAVE_BROKEN_POSIX_FALLOCATE,, Whether we have a broken posix_fallocate)
+fi
+
+
 AC_CACHE_CHECK([for st_blocks in struct stat],samba_cv_HAVE_STAT_ST_BLOCKS,[
 AC_TRY_COMPILE([#include <sys/types.h>
 #include <sys/stat.h>
@@ -3167,7 +3187,7 @@ with_ldap_support=auto
 AC_MSG_CHECKING([for LDAP support])
 
 AC_ARG_WITH(ldap,
-[AS_HELP_STRING([--with-ldap], [LDAP support (default yes)])],
+[AS_HELP_STRING([--with-ldap], [LDAP support (default=yes)])],
 [ case "$withval" in
     yes|no)
        with_ldap_support=$withval
@@ -3317,7 +3337,7 @@ with_ads_support=auto
 AC_MSG_CHECKING([for Active Directory and krb5 support])
 
 AC_ARG_WITH(ads,
-[AS_HELP_STRING([--with-ads], [Active Directory support (default auto)])],
+[AS_HELP_STRING([--with-ads], [Active Directory support (default=auto)])],
 [ case "$withval" in
     yes|no)
        with_ads_support="$withval"
@@ -3641,6 +3661,9 @@ if test x"$with_ads_support" != x"no"; then
   AC_CHECK_FUNC_EXT(krb5_get_creds_opt_set_impersonate, $KRB5_LIBS)
   AC_CHECK_FUNC_EXT(krb5_get_creds, $KRB5_LIBS)
   AC_CHECK_FUNC_EXT(krb5_get_credentials_for_user, $KRB5_LIBS)
+  AC_CHECK_FUNC_EXT(krb5_get_host_realm, $KRB5_LIBS)
+  AC_CHECK_FUNC_EXT(krb5_free_host_realm, $KRB5_LIBS)
+
   # MIT krb5 1.8 does not expose this call (yet)
   AC_CHECK_DECLS(krb5_get_credentials_for_user, [], [], [#include <krb5.h>])
 
@@ -3983,6 +4006,18 @@ if test x"$with_ads_support" != x"no"; then
                [Whether the WRFILE:-keytab is supported])
   fi
 
+  AC_CACHE_CHECK([for krb5_realm type],
+                samba_cv_HAVE_KRB5_REALM_TYPE,[
+    AC_TRY_COMPILE([#include <krb5.h>],
+      [krb5_realm realm;],
+      samba_cv_HAVE_KRB5_REALM_TYPE=yes,
+      samba_cv_HAVE_KRB5_REALM_TYPE=no)])
+
+  if test x"$samba_cv_HAVE_KRB5_REALM_TYPE" = x"yes"; then
+    AC_DEFINE(HAVE_KRB5_REALM_TYPE,1,
+               [Whether the type krb5_realm exists])
+  fi
+
   AC_CACHE_CHECK([for krb5_princ_realm returns krb5_realm or krb5_data],
                samba_cv_KRB5_PRINC_REALM_RETURNS_REALM,[
     AC_TRY_COMPILE([#include <krb5.h>],
@@ -4183,11 +4218,11 @@ PASSDB_LIBS="$PASSDB_LIBS $NSCD_LIBS"
 ########################################################
 # Compile with DNS Updates support?
 
-with_dnsupdate_support=no
+with_dnsupdate_support=auto
 AC_MSG_CHECKING([whether to enable DNS Updates support])
 
 AC_ARG_WITH(dnsupdate,
-[AS_HELP_STRING([--with-dnsupdate], [Enable DNS Updates support (default no)])],
+[AS_HELP_STRING([--with-dnsupdate], [Enable DNS Updates support (default=auto)])],
 [ case "$withval" in
     yes|no)
        with_dnsupdate_support=$withval
@@ -4199,24 +4234,29 @@ AC_MSG_RESULT($with_dnsupdate_support)
 if test x"$with_dnsupdate_support" != x"no"; then
 
   ################################################################
-  # first test for Active Directory support being enabled
-  #if test x"$with_ads_support" = x"no"; then
-  #            AC_MSG_ERROR(Active Directory support is required to enable DNS Update support)
-  #            with_dnsupdate_support=no
-  #fi          
+  # first test for AD / GSSAPI support being enabled
+       if test x"$have_gssapi" != xyes ; then
+               if test x"$with_dnsupdate_support" = x"yes" ; then
+                       AC_MSG_ERROR(DNS Updates support only possible with AD and GSSAPI support)
+               else
+                       AC_MSG_NOTICE(DNS Updates support only possible with AD and GSSAPI support)
+                       with_dnsupdate_support=no
+               fi
+       fi
   ##################################################################
   # then test for uuid.h (necessary to generate unique DNS keynames
   # (uuid.h is required for this test)
-  AC_CHECK_HEADERS(uuid/uuid.h)
+       AC_CHECK_HEADERS(uuid/uuid.h)
 
-  if test x"$ac_cv_header_uuid_uuid_h" != x"yes"; then
-       if test x"$with_dnsupdate_support" = x"yes"; then
-        AC_MSG_ERROR(uuid.h is needed to enable DNS Updates support)
-       else
-        AC_MSG_WARN(uuid.h is needed to enable DNS Updates support)
+       
+       if test x"$ac_cv_header_uuid_uuid_h" != x"yes"; then
+               if test x"$with_dnsupdate_support" = x"yes"; then
+                       AC_MSG_ERROR(uuid.h is needed to enable DNS Updates support)
+               else
+                       AC_MSG_NOTICE(uuid.h is needed to enable DNS Updates support)
+               fi
+               with_dnsupdate_support=no
        fi
-       with_dnsupdate_support=no
-  fi
 fi
 
 if test x"$with_dnsupdate_support" != x"no"; then
@@ -4248,6 +4288,10 @@ if test x"$with_dnsupdate_support" != x"no"; then
            with_dnsupdate_support=no
        ])
 fi
+  # finally print out the result:
+AC_MSG_CHECKING(whether DNS Updates support is used)
+AC_MSG_RESULT([$with_dnsupdate_support])
+
 
 #################################################
 # check for automount support
@@ -4476,6 +4520,39 @@ if test x"${try_pam}" != x"no";then
        AC_MSG_RESULT([$create_pam_modules])
 fi # try_pam != no
 
+#################################################
+# check for PAM_RADIO_TYPE
+AC_TRY_COMPILE([
+#if (!defined(LINUX))
+
+#define PAM_EXTERN extern
+#if defined(HAVE_SECURITY_PAM_APPL_H)
+#include <security/pam_appl.h>
+#elif defined(HAVE_PAM_PAM_APPL_H)
+#include <pam/pam_appl.h>
+#endif
+
+#endif
+
+#if defined(HAVE_SECURITY_PAM_MODULES_H)
+#include <security/pam_modules.h>
+#elif defined(HAVE_PAM_PAM_MODULES_H)
+#include <pam/pam_modules.h>
+#endif
+
+#if defined(HAVE_SECURITY__PAM_MACROS_H)
+#include <security/_pam_macros.h>
+#elif defined(HAVE_PAM__PAM_MACROS_H)
+#include <pam/_pam_macros.h>
+#endif
+
+#ifdef HAVE_SECURITY_PAM_EXT_H
+#include <security/pam_ext.h>
+#endif
+],
+[int i; i = PAM_RADIO_TYPE; ],
+AC_DEFINE(HAVE_PAM_RADIO_TYPE, 1, [Define to 1 if PAM_RADIO_TYPE is available]),[])
+
 #################################################
 # check for pam_smbpass support
 PAM_MODULES=""
@@ -5204,7 +5281,7 @@ AC_ARG_WITH(ctdb,
   esac])
 
 SAVED_CPPFLAGS="$CPPFLAGS"
-CPPFLAGS="$CPPFLAGS $CTDB_CPPFLAGS"
+CPPFLAGS="$CPPFLAGS ${SAMBA_CONFIGURE_CPPFLAGS} $CTDB_CPPFLAGS"
 ctdb_broken="missing or broken headers"
 
 AC_CHECK_HEADERS(ctdb.h ctdb_private.h,,,[
@@ -5971,7 +6048,6 @@ WINBIND_NSS="../nsswitch/libnss_winbind.$SHLIBEXT"
 WINBIND_WINS_NSS="../nsswitch/libnss_wins.$SHLIBEXT"
 WINBIND_NSS_LDSHFLAGS=$LDSHFLAGS
 NSSSONAMEVERSIONSUFFIX=""
-WINBIND_NSS_PTHREAD=""
 
 case "$host_os" in
        *linux* | gnu* | k*bsd*-gnu | kopensolaris*-gnu)
@@ -6113,12 +6189,6 @@ else
         AC_MSG_RESULT(no$winbind_no_reason)
 fi
 
-AC_CHECK_LIB(pthread, pthread_mutex_lock, [WINBIND_NSS_PTHREAD="-lpthread"
-                       AC_DEFINE(HAVE_PTHREAD, 1, [whether pthread exists])
-                       samba_cv_HAVE_PTHREAD=yes],
-                       samba_cv_HAVE_PTHREAD=no)
-
-AC_SUBST(WINBIND_NSS_PTHREAD)
 AC_SUBST(WINBIND_NSS)
 AC_SUBST(WINBIND_WINS_NSS)
 AC_SUBST(WINBIND_NSS_LDSHFLAGS)
@@ -6274,16 +6344,76 @@ if test x"$enable_avahi" != x"no"; then
     fi
 fi
 
+
+#################################################
+# Set pthread stuff
+
+PTHREAD_CFLAGS=error
+PTHREAD_LDFLAGS=error
+
+# If it's error, then the user didn't 
+# define it.
+if test "x$PTHREAD_LDFLAGS" = xerror; then
+  AC_CHECK_LIB(pthread, pthread_attr_init, [
+            PTHREAD_CFLAGS="-D_REENTRANT -D_POSIX_PTHREAD_SEMANTICS"
+            PTHREAD_LDFLAGS="-lpthread" ])
+fi
+
+if test "x$PTHREAD_LDFLAGS" = xerror; then
+  AC_CHECK_LIB(pthreads, pthread_attr_init, [
+            PTHREAD_CFLAGS="-D_THREAD_SAFE"
+            PTHREAD_LDFLAGS="-lpthreads" ])
+fi
+
+if test "x$PTHREAD_LDFLAGS" = xerror; then
+   AC_CHECK_LIB(c_r, pthread_attr_init, [
+               PTHREAD_CFLAGS="-D_THREAD_SAFE -pthread"
+               PTHREAD_LDFLAGS="-pthread" ])
+fi
+
+if test "x$PTHREAD_LDFLAGS" = xerror; then
+   AC_CHECK_FUNC(pthread_attr_init, [
+                PTHREAD_CFLAGS="-D_REENTRANT"
+                PTHREAD_LDFLAGS="-lpthread" ])
+fi
+
+# especially for HP-UX, where the AC_CHECK_FUNC macro fails to test for
+# pthread_attr_init. On pthread_mutex_lock it works there...
+if test "x$PTHREAD_LDFLAGS" = xerror; then
+   AC_CHECK_LIB(pthread, pthread_mutex_lock, [
+               PTHREAD_CFLAGS="-D_REENTRANT"
+               PTHREAD_LDFLAGS="-lpthread" ])
+fi
+
+AC_SUBST(PTHREAD_CFLAGS)
+AC_SUBST(PTHREAD_LDFLAGS)
+
+samba_cv_HAVE_PTHREAD=no
+if test x"$PTHREAD_CFLAGS" != xerror -a x"$PTHREAD_LDFLAGS" != xerror; then
+       samba_cv_HAVE_PTHREAD=yes
+       # now check for pthread.h with pthread-correct CFLAGS and LDFLAGS:
+       ac_save_CFLAGS=$CFLAGS
+       CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
+       ac_save_LDFLAGS=$LDFLAGS
+       LDFLAGS="$LDFLAGS $PTHREAD_LDFLAGS"
+       AC_CHECK_HEADERS(pthread.h)
+       CFLAGS=$ac_save_CFLAGS
+       LDFLAGS=$ac_save_LDFLAGS
+fi
+
 #################################################
 # Check if user wants pthreadpool support
 
 AC_ARG_ENABLE(pthreadpool,
-[AS_HELP_STRING([--enable-pthreadpool], [Enable pthreads pool helper support (default=auto)])])
+[AS_HELP_STRING([--enable-pthreadpool], [Enable pthreads pool helper support (default=no)])])
+
+if test x"$enable_pthreadpool" = xyes -a x"$samba_cv_HAVE_PTHREAD" != x"yes"; then
+       AC_MSG_ERROR([pthreadpool support cannot be enabled when pthread support was found])
+fi
 
-if test x"$enable_pthreadpool" != x"no" -a x"$samba_cv_HAVE_PTHREAD" = x"yes"; then
-    AC_TRY_LINK([#include "pthread.h"],
-    [pthread_create(NULL, NULL, NULL, NULL)],
-                   ,LIBS="$LIBS -lpthread")
+if test x"$enable_pthreadpool" = x"yes" -a x"$samba_cv_HAVE_PTHREAD" = x"yes"; then
+    LIBS="$LIBS $PTHREAD_LDFLAGS"
+    CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
     AC_DEFINE(WITH_PTHREADPOOL, 1, [Whether to include pthreadpool helpers])
     AC_SUBST(PTHREADPOOL_OBJ, "lib/pthreadpool.o")
 fi
@@ -6503,6 +6633,7 @@ SMB_MODULE(vfs_smb_traffic_analyzer, \$(VFS_SMB_TRAFFIC_ANALYZER_OBJ), "bin/smb_
 SMB_MODULE(vfs_onefs, \$(VFS_ONEFS), "bin/onefs.$SHLIBEXT", VFS)
 SMB_MODULE(vfs_onefs_shadow_copy, \$(VFS_ONEFS_SHADOW_COPY), "bin/onefs_shadow_copy.$SHLIBEXT", VFS)
 SMB_MODULE(vfs_dirsort, \$(VFS_DIRSORT_OBJ), "bin/dirsort.$SHLIBEXT", VFS)
+SMB_MODULE(vfs_scannedonly, \$(VFS_SCANNEDONLY_OBJ), "bin/scannedonly.$SHLIBEXT", VFS)
 
 SMB_SUBSYSTEM(VFS,smbd/vfs.o)