File: apu-conf.m4

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apr-util 1.6.1-5
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dnl -------------------------------------------------------- -*- autoconf -*-
dnl Licensed to the Apache Software Foundation (ASF) under one or more
dnl contributor license agreements.  See the NOTICE file distributed with
dnl this work for additional information regarding copyright ownership.
dnl The ASF licenses this file to You under the Apache License, Version 2.0
dnl (the "License"); you may not use this file except in compliance with
dnl the License.  You may obtain a copy of the License at
dnl
dnl     http://www.apache.org/licenses/LICENSE-2.0
dnl
dnl Unless required by applicable law or agreed to in writing, software
dnl distributed under the License is distributed on an "AS IS" BASIS,
dnl WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
dnl See the License for the specific language governing permissions and
dnl limitations under the License.


dnl
dnl custom autoconf rules for APRUTIL
dnl

dnl
dnl APU_FIND_APR: figure out where APR is located
dnl
AC_DEFUN([APU_FIND_APR], [

  dnl use the find_apr.m4 script to locate APR. sets apr_found and apr_config
  APR_FIND_APR(,,,[1])
  if test "$apr_found" = "no"; then
    AC_MSG_ERROR(APR could not be located. Please use the --with-apr option.)
  fi

  APR_BUILD_DIR="`$apr_config --installbuilddir`"

  dnl make APR_BUILD_DIR an absolute directory (we'll need it in the
  dnl sub-projects in some cases)
  APR_BUILD_DIR="`cd $APR_BUILD_DIR && pwd`"

  APR_INCLUDES="`$apr_config --includes`"
  APR_LIBS="`$apr_config --link-libtool --libs`"
  APR_SO_EXT="`$apr_config --apr-so-ext`"
  APR_LIB_TARGET="`$apr_config --apr-lib-target`"

  AC_SUBST(APR_INCLUDES)
  AC_SUBST(APR_LIBS)
  AC_SUBST(APR_BUILD_DIR)
])

dnl
dnl APU_TRY_EXPAT_LINK(
dnl      test-message, cache-var-name, hdrs, libs,
dnl      [actions-on-success], [actions-on-failure])
dnl         
dnl Tests linking against expat with libraries 'libs' and includes
dnl 'hdrs', passing message + cache-var-name to AC_CACHE_CHECK.
dnl On success, sets $expat_libs to libs, sets $apu_have_expat to 1, 
dnl and runs actions-on-success; on failure runs actions-on-failure.
dnl
AC_DEFUN([APU_TRY_EXPAT_LINK], [
AC_CACHE_CHECK([$1], [$2], [
  apu_expat_LIBS=$LIBS
  LIBS="$LIBS $4"
  AC_TRY_LINK([#include <stdlib.h>
#include <$3>], [XML_ParserCreate(NULL);],
    [$2=yes], [$2=no])
  LIBS=$apu_expat_LIBS
])

if test $[$2] = yes; then
   AC_DEFINE([HAVE_]translit([$3], [a-z./], [A-Z__]), 1,
             [Define if $3 is available])
   apu_expat_libs="$4"
   apu_has_expat=1
   $5
else
   apu_has_expat=0
   $6
fi
])

dnl
dnl APU_SYSTEM_EXPAT: tests for a system expat installation
dnl If present, sets $apu_has_expat to 1 and adjusts LDFLAGS/CPPFLAGS
dnl appropriately.  This is mostly for compatibility with existing
dnl expat releases; all but the first APU_TRY_EXPAT_LINK call could
dnl be dropped later.
dnl
AC_DEFUN([APU_SYSTEM_EXPAT], [
 
  APU_TRY_EXPAT_LINK([Expat 1.95.x], apu_cv_expat_system, 
    [expat.h], [-lexpat])

  if test $apu_has_expat = 0; then
    APU_TRY_EXPAT_LINK([old Debian-packaged expat], apu_cv_expat_debian,
       [xmltok/xmlparse.h], [-lxmlparse -lxmltok])
  fi

  if test $apu_has_expat = 0; then
    APU_TRY_EXPAT_LINK([old FreeBSD-packaged expat], apu_cv_expat_freebsd,
       [xml/xmlparse.h], [-lexpat])
  fi

  if test $apu_has_expat = 0; then
    APU_TRY_EXPAT_LINK([Expat 1.0/1.1], apu_cv_expat_1011,
       [xmlparse/xmlparse.h], [-lexpat])
  fi

  if test $apu_has_expat = 0; then
    APR_ADDTO(LDFLAGS, [-L/usr/local/lib])
    APR_ADDTO(CPPFLAGS, [-I/usr/local/include])
 
    APU_TRY_EXPAT_LINK([Expat 1.95.x in /usr/local], 
       apu_cv_expat_usrlocal, [expat.h], [-lexpat],
       [APR_ADDTO(APRUTIL_INCLUDES, [-I/usr/local/include])
        APR_ADDTO(APRUTIL_LDFLAGS, [-L/usr/local/lib])],[
       APR_REMOVEFROM(LDFLAGS, [-L/usr/local/lib])
       APR_REMOVEFROM(CPPFLAGS, [-I/usr/local/include])
      ])
  fi
])


dnl
dnl APU_FIND_EXPAT: figure out where EXPAT is located
dnl
AC_DEFUN([APU_FIND_EXPAT], [

save_cppflags="$CPPFLAGS"
save_ldflags="$LDFLAGS"

apu_has_expat=0

apu_try_external_expat=1

AC_ARG_WITH([expat],
[  --with-expat=DIR        specify Expat location], [
  if test "$withval" = "yes"; then
    AC_MSG_ERROR([a directory must be specified for --with-expat])
  elif test "$withval" = "no"; then
    AC_MSG_ERROR([Expat cannot be disabled (at this time)])
  else
    # Add given path to standard search paths if appropriate:
    if test "$withval" != "/usr"; then
      APR_ADDTO(LDFLAGS, [-L$withval/lib])
      APR_ADDTO(CPPFLAGS, [-I$withval/include])
      APR_ADDTO(APRUTIL_INCLUDES, [-I$withval/include])
      APR_ADDTO(APRUTIL_LDFLAGS, [-L$withval/lib])
    fi
  fi
])

if test $apu_try_external_expat = 1; then
  APU_SYSTEM_EXPAT
fi

APR_ADDTO(APRUTIL_EXPORT_LIBS, [$apu_expat_libs])
APR_ADDTO(APRUTIL_LIBS, [$apu_expat_libs])

CPPFLAGS=$save_cppflags
LDFLAGS=$save_ldflags
])


dnl 
dnl Find a particular LDAP library
dnl
AC_DEFUN([APU_FIND_LDAPLIB], [
  if test ${apu_has_ldap} != "1"; then
    ldaplib=$1
    extralib=$2
    # Clear the cache entry for subsequent APU_FIND_LDAPLIB invocations.
    changequote(,)
    ldaplib_cache_id="`echo $ldaplib | sed -e 's/[^a-zA-Z0-9_]/_/g'`"
    changequote([,])
    unset ac_cv_lib_${ldaplib_cache_id}_ldap_init
    unset ac_cv_lib_${ldaplib_cache_id}___ldap_init
    AC_CHECK_LIB(${ldaplib}, ldap_init, 
      [
        LDADD_ldap_found="-l${ldaplib} ${extralib}"
        AC_CHECK_LIB(${ldaplib}, ldapssl_client_init, apu_has_ldapssl_client_init="1", , ${extralib})
        AC_CHECK_LIB(${ldaplib}, ldapssl_client_deinit, apu_has_ldapssl_client_deinit="1", , ${extralib})
        AC_CHECK_LIB(${ldaplib}, ldapssl_add_trusted_cert, apu_has_ldapssl_add_trusted_cert="1", , ${extralib})
        AC_CHECK_LIB(${ldaplib}, ldap_start_tls_s, apu_has_ldap_start_tls_s="1", , ${extralib})
        AC_CHECK_LIB(${ldaplib}, ldap_sslinit, apu_has_ldap_sslinit="1", , ${extralib})
        AC_CHECK_LIB(${ldaplib}, ldapssl_init, apu_has_ldapssl_init="1", , ${extralib})
        AC_CHECK_LIB(${ldaplib}, ldapssl_install_routines, apu_has_ldapssl_install_routines="1", , ${extralib})
        apu_has_ldap="1";
      ], , ${extralib})
  fi
])


dnl
dnl APU_FIND_LDAP: figure out where LDAP is located
dnl
AC_DEFUN([APU_FIND_LDAP],  [

echo $ac_n "${nl}checking for ldap support..."

apu_has_ldap="0";
apu_has_ldapssl_client_init="0"
apu_has_ldapssl_client_deinit="0"
apu_has_ldapssl_add_trusted_cert="0"
apu_has_ldap_start_tls_s="0"
apu_has_ldapssl_init="0"
apu_has_ldap_sslinit="0"
apu_has_ldapssl_install_routines="0"
apu_has_ldap_openldap="0"
apu_has_ldap_solaris="0"
apu_has_ldap_novell="0"
apu_has_ldap_microsoft="0"
apu_has_ldap_netscape="0"
apu_has_ldap_mozilla="0"
apu_has_ldap_tivoli="0"
apu_has_ldap_zos="0"
apu_has_ldap_other="0"
LDADD_ldap_found=""

AC_ARG_WITH(lber,[  --with-lber=library     lber library to use],
  [
    if test "$withval" = "yes"; then
      apu_liblber_name="lber"
    else
      apu_liblber_name="$withval"
    fi
  ],
  [
    apu_liblber_name="lber"
  ])

AC_ARG_WITH(ldap-include,[  --with-ldap-include=path  path to ldap include files with trailing slash])
AC_ARG_WITH(ldap-lib,[  --with-ldap-lib=path    path to ldap lib file])
AC_ARG_WITH(ldap,[  --with-ldap=library     ldap library to use],
  [
    if test "$with_ldap" != "no"; then
      save_cppflags="$CPPFLAGS"
      save_ldflags="$LDFLAGS"
      save_libs="$LIBS"
      if test -n "$with_ldap_include"; then
        CPPFLAGS="$CPPFLAGS -I$with_ldap_include"
        APR_ADDTO(APRUTIL_INCLUDES, [-I$with_ldap_include])
      fi
      if test -n "$with_ldap_lib"; then
        LDFLAGS="$LDFLAGS -L$with_ldap_lib"
        APR_ADDTO(APRUTIL_LDFLAGS, [-L$with_ldap_lib])
      fi

      LIBLDAP="$withval"
      if test "$LIBLDAP" = "yes"; then
        dnl The iPlanet C SDK 5.0 is as yet untested... 
        APU_FIND_LDAPLIB("ldap50", "-lnspr4 -lplc4 -lplds4 -liutil50 -llber50 -lldif50 -lnss3 -lprldap50 -lssl3 -lssldap50")
        APU_FIND_LDAPLIB("ldapssl41", "-lnspr3 -lplc3 -lplds3")
        APU_FIND_LDAPLIB("ldapssl40")
        APU_FIND_LDAPLIB("ldapssl30")
        APU_FIND_LDAPLIB("ldapssl20")
        APU_FIND_LDAPLIB("ldapsdk", "-lldapx -lldapssl -lldapgss -lgssapi_krb5")
        APU_FIND_LDAPLIB("ldapsdk", "-lldapx -lldapssl -lldapgss -lgss -lresolv -lsocket")
        APU_FIND_LDAPLIB("ldap", "-llber")
        APU_FIND_LDAPLIB("ldap", "-llber -lresolv")
        APU_FIND_LDAPLIB("ldap", "-llber -lresolv -lsocket -lnsl")
        APU_FIND_LDAPLIB("ldap", "-ldl -lpthread")
      else
        APU_FIND_LDAPLIB($LIBLDAP)
        APU_FIND_LDAPLIB($LIBLDAP, "-lresolv")
        APU_FIND_LDAPLIB($LIBLDAP, "-lresolv -lsocket -lnsl")
        APU_FIND_LDAPLIB($LIBLDAP, "-ldl -lpthread")
      fi

      if test ${apu_has_ldap} != "1"; then
        AC_MSG_ERROR(could not find an LDAP library)
      else
        APR_ADDTO(LDADD_ldap, [$LDADD_ldap_found])
      fi
      AC_CHECK_LIB($apu_liblber_name, ber_init,
        [APR_ADDTO(LDADD_ldap, [-l${apu_liblber_name}])])

      AC_CHECK_HEADERS(lber.h, lber_h=["#include <lber.h>"])

      # Solaris has a problem in <ldap.h> which prevents it from
      # being included by itself.  Check for <ldap.h> manually,
      # including lber.h first.
      AC_CACHE_CHECK([for ldap.h], [apr_cv_hdr_ldap_h],
      [AC_TRY_CPP(
      [#ifdef HAVE_LBER_H
      #include <lber.h>
      #endif
      #include <ldap.h>
      ], [apr_cv_hdr_ldap_h=yes], [apr_cv_hdr_ldap_h=no])])
      if test "$apr_cv_hdr_ldap_h" = "yes"; then
        ldap_h=["#include <ldap.h>"]
        AC_DEFINE([HAVE_LDAP_H], 1, [Defined if ldap.h is present])
      fi

      AC_CHECK_HEADERS(ldap_ssl.h, ldap_ssl_h=["#include <ldap_ssl.h>"])

      if test "$apr_cv_hdr_ldap_h" = "yes"; then
        AC_CACHE_CHECK([for LDAP toolkit],
                       [apr_cv_ldap_toolkit], [
          if test "x$apr_cv_ldap_toolkit" = "x"; then
            AC_EGREP_CPP([OpenLDAP], [$lber_h
                         $ldap_h 
                         LDAP_VENDOR_NAME], [apu_has_ldap_openldap="1"
                                             apr_cv_ldap_toolkit="OpenLDAP"])
          fi
          if test "x$apr_cv_ldap_toolkit" = "x"; then
            AC_EGREP_CPP([Sun Microsystems Inc.], [$lber_h
                         $ldap_h
                         LDAP_VENDOR_NAME], [apu_has_ldap_solaris="1"
                                             apr_cv_ldap_toolkit="Solaris"])
          fi
          if test "x$apr_cv_ldap_toolkit" = "x"; then
            AC_EGREP_CPP([Novell], [$lber_h
                         $ldap_h
                         LDAP_VENDOR_NAME], [apu_has_ldap_novell="1"
                                             apr_cv_ldap_toolkit="Novell"])
          fi
          if test "x$apr_cv_ldap_toolkit" = "x"; then
            AC_EGREP_CPP([Microsoft Corporation.], [$lber_h
                         $ldap_h
                         LDAP_VENDOR_NAME], [apu_has_ldap_microsoft="1"
                                             apr_cv_ldap_toolkit="Microsoft"])
          fi
          if test "x$apr_cv_ldap_toolkit" = "x"; then
            AC_EGREP_CPP([Netscape Communications Corp.], [$lber_h
                         $ldap_h
                         LDAP_VENDOR_NAME], [apu_has_ldap_netscape="1"
                                             apr_cv_ldap_toolkit="Netscape"])
          fi
          if test "x$apr_cv_ldap_toolkit" = "x"; then
            AC_EGREP_CPP([mozilla.org], [$lber_h
                         $ldap_h
                         LDAP_VENDOR_NAME], [apu_has_ldap_mozilla="1"
                                             apr_cv_ldap_toolkit="Mozilla"])
          fi
          if test "x$apr_cv_ldap_toolkit" = "x"; then
            AC_EGREP_CPP([International Business Machines], [$lber_h
                         $ldap_h
                         LDAP_VENDOR_NAME], [apu_has_ldap_tivoli="1"
                                             apr_cv_ldap_toolkit="Tivoli"])
          fi
          if test "x$apr_cv_ldap_toolkit" = "x"; then
            case "$host" in
            *-ibm-os390)
              AC_EGREP_CPP([IBM], [$lber_h
                                   $ldap_h], [apu_has_ldap_zos="1"
                                              apr_cv_ldap_toolkit="z/OS"])
              ;;
            esac
          fi
          if test "x$apr_cv_ldap_toolkit" = "x"; then
            apu_has_ldap_other="1"
            apr_cv_ldap_toolkit="unknown"
          fi
        ])
      fi

      CPPFLAGS=$save_cppflags
      LDFLAGS=$save_ldflags
      LIBS=$save_libs
    fi
  ])

if test "$apu_has_ldap_openldap" = "1"; then
    save_cppflags="$CPPFLAGS"
    save_ldflags="$LDFLAGS"
    save_libs="$LIBS"

    CPPFLAGS="$CPPFLAGS $APRUTIL_INCLUDES"
    LDFLAGS="$LDFLAGS $APRUTIL_LDFLAGS"
    AC_CACHE_CHECK([style of ldap_set_rebind_proc routine], ac_cv_ldap_set_rebind_proc_style,
    APR_TRY_COMPILE_NO_WARNING([
    #ifdef HAVE_LBER_H
    #include <lber.h>
    #endif
    #ifdef HAVE_LDAP_H
    #include <ldap.h>
    #endif
    ], [
    ldap_set_rebind_proc((LDAP *)0, (LDAP_REBIND_PROC *)0, (void *)0);
    ], ac_cv_ldap_set_rebind_proc_style=three, ac_cv_ldap_set_rebind_proc_style=two))

    if test "$ac_cv_ldap_set_rebind_proc_style" = "three"; then
        AC_DEFINE(LDAP_SET_REBIND_PROC_THREE, 1, [Define if ldap_set_rebind_proc takes three arguments])
    fi

    CPPFLAGS="$save_cppflags"
    LDFLAGS="$save_ldflags"
    LIBS="$save_libs"
fi

AC_SUBST(ldap_h)
AC_SUBST(lber_h)
AC_SUBST(ldap_ssl_h)
AC_SUBST(apu_has_ldapssl_client_init)
AC_SUBST(apu_has_ldapssl_client_deinit)
AC_SUBST(apu_has_ldapssl_add_trusted_cert)
AC_SUBST(apu_has_ldap_start_tls_s)
AC_SUBST(apu_has_ldapssl_init)
AC_SUBST(apu_has_ldap_sslinit)
AC_SUBST(apu_has_ldapssl_install_routines)
AC_SUBST(apu_has_ldap)
AC_SUBST(apu_has_ldap_openldap)
AC_SUBST(apu_has_ldap_solaris)
AC_SUBST(apu_has_ldap_novell)
AC_SUBST(apu_has_ldap_microsoft)
AC_SUBST(apu_has_ldap_netscape)
AC_SUBST(apu_has_ldap_mozilla)
AC_SUBST(apu_has_ldap_tivoli)
AC_SUBST(apu_has_ldap_zos)
AC_SUBST(apu_has_ldap_other)
AC_SUBST(LDADD_ldap)

])

dnl
dnl APU_CHECK_CRYPT_R_STYLE
dnl
dnl  Decide which of a couple of flavors of crypt_r() is necessary for
dnl  this platform.
dnl
AC_DEFUN([APU_CHECK_CRYPT_R_STYLE], [

AC_CACHE_CHECK([style of crypt_r], apr_cv_crypt_r_style, 
[AC_TRY_COMPILE([#include <crypt.h>],
 [CRYPTD buffer;
  crypt_r("passwd", "hash", &buffer);], 
 [apr_cv_crypt_r_style=cryptd],
 [AC_TRY_COMPILE([#include <crypt.h>],
  [struct crypt_data buffer;
   crypt_r("passwd", "hash", &buffer);], 
  [apr_cv_crypt_r_style=struct_crypt_data],
  [apr_cv_crypt_r_style=none])])])

if test "$apr_cv_crypt_r_style" = "cryptd"; then
   AC_DEFINE(CRYPT_R_CRYPTD, 1, [Define if crypt_r has uses CRYPTD])
elif test "$apr_cv_crypt_r_style" = "struct_crypt_data"; then
   AC_DEFINE(CRYPT_R_STRUCT_CRYPT_DATA, 1, [Define if crypt_r uses struct crypt_data])
fi
])