File: apache.m4

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dnl
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
dnl apache.m4: autoconf macro for Apache/apxs
dnl

dnl
dnl check for apxs.
dnl

AC_DEFUN(JTC_CHECK_APXS,[
WEBSERVER=""
apache_dir=""
apache_include=""
APXS="apxs"
AC_ARG_WITH(apxs,
[  --with-apxs[=FILE]      Build shared Apache module. FILE is the optional
                        pathname to the apxs tool; defaults to finding
			apxs in your PATH.],
[
    case "${withval}" in 
        y | yes | true) find_apxs=true ;;
        n | no | false) find_apxs=false ;;
        *) find_apxs=false ;;
    esac

    if ${TEST} ${find_apxs} ; then    
        AC_MSG_RESULT([need to check for Perl first, apxs depends on it...])
        AC_PATH_PROG(PERL,perl,$PATH)dnl
    
        if ${TEST} ${find_apxs} ; then
            APXS=${withval}
        else
            AC_PATH_PROG(APXS,apxs,$PATH)dnl
        fi
    
        if ${TEST} -n "${APXS}" ; then
            dnl Seems that we have it, but have to check if it is OK first        
            if ${TEST} ! -x "${APXS}" ; then
                AC_MSG_ERROR(Invalid location for apxs: '${APXS}')
            fi
            
            $APXS -q PREFIX >/dev/null 2>/dev/null || apxs_support=false
    
            if ${TEST} "${apxs_support}" = "false" ; then
                AC_MSG_RESULT(could not find apxs)
                AC_MSG_ERROR(You must specify a valid --with-apxs path)
            fi

            dnl test apache version
            $RM -rf test
            $APXS -n test -g
            APA=`grep STANDARD20 test/mod_test.c`
            $RM -rf test
            if ${TEST} -z "$APA" ; then
                WEBSERVER="apache-1.3"
            else
                WEBSERVER="apache-2.0"
            fi
            AC_MSG_RESULT([building connector for \"$WEBSERVER\"])
    
            AC_SUBST(APXS)

            dnl apache_dir and apache_include are also needed.
	    apache_dir=`$APXS -q PREFIX`
	    apache_include="-I`$APXS -q INCLUDEDIR`"
        fi
    fi
],
[
	AC_MSG_RESULT(no apxs given)
])
])dnl

dnl
dnl check for apache (static link).
dnl

AC_DEFUN(JTC_CHECK_APACHE,[

dnl it is copied from the configure of JServ ;=)
dnl and adapted. 

apache_dir_is_src="false"
AC_ARG_WITH(apache,
[  --with-apache=DIR      Build static Apache module. DIR is the pathname 
                        to the Apache source directory.],
[
    if ${TEST} ! -z "$WEBSERVER" ; then
        AC_MSG_ERROR([Sorry cannot use --with-apxs=${APXS} and --with-apache=${withval} togother, please choose one of both])
    fi

    AC_MSG_CHECKING([for Apache source directory (assume static build)])

    if ${TEST} -n "${withval}" && ${TEST} -d "${withval}" ; then
        if ${TEST} -d "${withval}/src" ; then
           # handle the case where people use relative paths to 
           # the apache source directory by pre-pending the current
           # build directory to the path. there are probably 
           # errors with this if configure is run while in a 
           # different directory than what you are in at the time
           if ${TEST} -n "`${ECHO} ${withval}|${GREP} \"^\.\.\"`" ; then
               withval=`pwd`/${withval}
           fi

           apache_dir=${withval}
           apache_dir_is_src="true"
           AC_MSG_RESULT(${apache_dir})
        
           AC_MSG_CHECKING(for Apache include directory)

           if ${TEST} -d "${withval}/src/include" ; then
               # read osdir from the existing apache.
               osdir=`${GREP} '^OSDIR=' ${withval}/src/Makefile.config | ${SED} -e 's:^OSDIR=.*/os:os:'`
               if ${TEST} -z "${osdir}" ; then
                   osdir=os/unix
               fi
               apache_include="-I${withval}/src/include \
                   -I${withval}/src/${osdir}"
               WEBSERVER="apache-1.3"
               AC_MSG_RESULT([${apache_include}, version 1.3])
           else
               AC_MSG_ERROR([Sorry Apache 1.2.x is no longer supported.])
           fi
        else
           if ${TEST} -d "${withval}/include" ; then
              # osdir for Apache20.
              WEBSERVER="apache-2.0"
              apache_dir=${withval}
              apache_dir_is_src="true"
              AC_MSG_RESULT(${apache_dir})
           fi
        fi
    fi

    dnl Make sure we have a result.
    if ${TEST} -z "$WEBSERVER" ; then
        AC_MSG_ERROR([Directory $apache_dir is not a valid Apache source distribution])
    fi

# VT: Now, which one I'm supposed to use? Let's figure it out later

    configure_apache=true
    configure_src=true
    
    AC_MSG_RESULT([building connector for \"$WEBSERVER\"])
],
[
	AC_MSG_RESULT(no apache given)
])
AC_SUBST(apache_include)
APACHE_DIR=${apache_dir}
AC_SUBST(APACHE_DIR)
])

dnl
dnl check for EAPI (static link only).
dnl

AC_DEFUN(JTC_CHECK_EAPI,[

dnl CFLAGS for EAPI mod_ssl (Apache 1.3)
dnl it also allows the CFLAGS environment variable.
CFLAGS="${CFLAGS}"
AC_ARG_ENABLE(
EAPI,
[  --enable-EAPI           Enable EAPI support (mod_ssl, Apache 1.3)],
[
case "${enableval}" in
    y | Y | YES | yes | TRUE | true )
        CFLAGS="${CFLAGS} -DEAPI"
        AC_MSG_RESULT([...Enabling EAPI Support...])
        ;;
esac
])
AC_SUBST(CFLAGS)
])


dnl
dnl set flags for apxs.
dnl

AC_DEFUN(JTC_SET_APXS_FLAGS,[
dnl the APXSCFLAGS is given by apxs to the C compiler
dnl the APXSLDFLAGS is given to the linker (for APRVARS).
APXSLDFLAGS=""
APXSCFLAGS=""
if ${TEST} -n "${CFLAGS}" ; then
	APXSCFLAGS="${CFLAGS}"
fi
dnl the APXSLDFLAGS is normaly empty but APXSCFLAGS is not.
if ${TEST} -n "${LDFLAGS}" ; then
	APXSLDFLAGS="-Wl,${LDFLAGS}"
fi
AC_SUBST(APXSCFLAGS)
AC_SUBST(APXSLDFLAGS)
])