Tomcat example source code file (configure.in)

This example Tomcat source code file (configure.in) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Tomcat tags/keywords

ac_subst, ac_subst, apr_addto, apr_addto, cflags, cflags, include_outputs, include_rules, java_home, java_inc, license, license, makefiles, tcn

The Tomcat configure.in source code

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

dnl
dnl Process this file with autoconf to produce a configure script
dnl

AC_PREREQ(2.50)
AC_INIT(configure.in)

AC_CONFIG_AUX_DIR(build)

sinclude(build/apr_common.m4)
sinclude(build/tcnative.m4)
sinclude(build/find_apr.m4)

dnl Generate ./config.nice for reproducing runs of configure
dnl
APR_CONFIG_NICE(config.nice)

dnl # Some initial steps for configuration.  We setup the default directory
dnl # and which files are to be configured.

dnl Absolute source/build directory
abs_srcdir=`(cd $srcdir && pwd)`
abs_builddir=`pwd`

if test "$abs_builddir" != "$abs_srcdir"; then
  USE_VPATH=1
  TCN_CONFIG_LOCATION=build
else
  TCN_CONFIG_LOCATION=source
fi

AC_SUBST(TCN_CONFIG_LOCATION)
AC_CANONICAL_SYSTEM
AC_PROG_INSTALL

dnl
dnl compute the top directory of the build
dnl note: this is needed for LIBTOOL and exporting the bundled Expat
dnl
top_builddir="$abs_builddir"
AC_SUBST(top_builddir)
AC_SUBST(abs_srcdir)
AC_SUBST(abs_builddir)

dnl Initialize mkdir -p functionality.
APR_MKDIR_P_CHECK($abs_srcdir/build/mkdir.sh)

dnl get our version information
get_version="$abs_srcdir/build/get-version.sh"
version_hdr="$abs_srcdir/include/tcn_version.h"
TCNATIVE_MAJOR_VERSION="`$get_version major $version_hdr TCN`"
TCNATIVE_DOTTED_VERSION="`$get_version all $version_hdr TCN`"
TCNATIVE_LIBTOOL_VERSION="`$get_version libtool $version_hdr TCN`"

AC_SUBST(TCNATIVE_DOTTED_VERSION)
AC_SUBST(TCNATIVE_MAJOR_VERSION)
AC_SUBST(TCNATIVE_LIBTOOL_VERSION)

echo "Tomcat Native Version: ${TCNATIVE_DOTTED_VERSION}"

dnl Enable the layout handling code, then reparse the prefix-style
dnl arguments due to autoconf being a PITA.
APR_ENABLE_LAYOUT(tcnative)
APR_PARSE_ARGUMENTS

dnl
dnl set up the compilation flags and stuff
dnl

TCNATIVE_INCLUDES=""
TCNATIVE_PRIV_INCLUDES="-I$top_builddir/include"

dnl
dnl Find the APR includes directory and (possibly) the source (base) dir.
dnl
TCN_FIND_APR

dnl
dnl even though we use apr_rules.mk for building apr-util, we need
dnl to grab CC and CPP ahead of time so that apr-util config tests
dnl use the same compiler as APR; we need the same compiler options
dnl and feature test macros as well
dnl
APR_SETIFNULL(CC, `$apr_config --cc`)
APR_SETIFNULL(CPP, `$apr_config --cpp`)

AC_PROG_INSTALL

dnl
dnl  Find the JVM related information
dnl
NEED_JNI_MD=yes
TCN_FIND_JDK
TCN_SABLEVM
TCN_J9VM

dnl MAC OS X does not used include but Headers
if test -d ${JAVA_HOME}/Headers; then
  JAVA_INC=Headers
else
  JAVA_INC=include
fi
APR_ADDTO(TCNATIVE_PRIV_INCLUDES,[-I$JAVA_HOME/$JAVA_INC])

dnl sableVM does not have/need $JAVA_OS/jni_md.h
if test "$NEED_JNI_MD" = "yes"; then
  TCN_FIND_JDK_OS
  if test -z "${JAVA_OS}"; then
    AC_MSG_RESULT([jni_md.h found in $JAVA_HOME/$JAVA_INC])
  else
    APR_ADDTO(TCNATIVE_PRIV_INCLUDES,[-I$JAVA_HOME/$JAVA_INC/$JAVA_OS])
  fi
fi

AC_SUBST(JAVA_HOME)
AC_SUBST(JAVA_PLATFORM)
AC_SUBST(JAVA_OS)


dnl
dnl Detect openssl toolkit installation
dnl

use_openssl=true;

AC_ARG_ENABLE(openssl, 
[ --disable-openssl   avoid using OpenSSL toolkit],
[
  use_openssl=false;
  AC_MSG_RESULT([Disabling SSL support...])
])

if $use_openssl ; then
  TCN_CHECK_SSL_TOOLKIT
fi

so_ext=$APR_SO_EXT
lib_target=$APR_LIB_TARGET
AC_SUBST(so_ext)
AC_SUBST(lib_target)

TCNATIVE_LIBNAME="tcnative${libsuffix}"
AC_SUBST(TCNATIVE_LIBNAME)

EXTRA_OS_LINK=""
host_alias=`uname -s`
case "$host_alias" in
    dnl ### BeOS requires that ALL symbols resolve at LINK time!
    dnl ###
    dnl ### So, if we're building on BeOS then we need to add in the
    dnl ### apr and expat libraries to the build or it'll die a truly horrible
    dnl ### death. We now use the apr-config tool to determine the correct
    dnl ### library to link against :)
*AIX*|*Darwin*|*BeOS*)
    dnl need such stuff as -liconv to be specified when building libaprutil.la
    EXTRA_OS_LINK='$(TCNATIVE_LDFLAGS) $(TCNATIVE_LIBS)'
    ;;
*)
    ;;
esac

AC_SUBST(EXTRA_OS_LINK)

dnl CFLAGS for maintainer mode
dnl it also allows the CFLAGS environment variable.
CFLAGS="${CFLAGS}"
AC_ARG_ENABLE(
maintainer-mode,
[  --enable-maintainer-mode   Turn on debugging and compile time warnings],
[
  if test "$GCC" = "yes"; then
    CFLAGS="${CFLAGS} -DDEBUG -Wall"
  else
    CFLAGS="${CFLAGS} -DDEBUG"
  fi
AC_MSG_RESULT([...Enabling Maintainer mode...])
])

dnl
dnl Prep all the flags and stuff for compilation and export to other builds
dnl
APR_ADDTO(TCNATIVE_LIBS, [$LIBS])
APR_ADDTO(TCNATIVE_LIBS, [$APR_LIBS])
APR_ADDTO(TCNATIVE_LDFLAGS, [$LDFLAGS])

# Link libkstat for Solaris
case $host in
    *-solaris2*)
        APR_ADDTO(TCNATIVE_LIBS, -lkstat)
        ;;
    *)
        ;;
esac

AC_SUBST(TCNATIVE_EXPORT_LIBS)
AC_SUBST(TCNATIVE_PRIV_INCLUDES)
AC_SUBST(TCNATIVE_INCLUDES)
AC_SUBST(TCNATIVE_LDFLAGS)
AC_SUBST(TCNATIVE_LIBS)
AC_SUBST(CFLAGS)
AC_SUBST(CPPFLAGS)

dnl copy apr's rules.mk into our build directory.
if test ! -d ./build; then
   $mkdir_p build
fi
cp $APR_BUILD_DIR/apr_rules.mk $abs_builddir/build/rules.mk


dnl
dnl BSD/OS (BSDi) needs to use a different include syntax in the Makefiles
dnl
case "$host_alias" in
*bsdi* | BSD/OS)
    # Check whether they've installed GNU make
    if make --version > /dev/null 2>&1; then
        INCLUDE_RULES="include $abs_builddir/build/rules.mk"
        INCLUDE_OUTPUTS="include $abs_srcdir/build-outputs.mk"
    else
        INCLUDE_RULES=".include \"$abs_builddir/build/rules.mk\""
        INCLUDE_OUTPUTS=".include \"$abs_srcdir/build-outputs.mk\""
    fi
    ;;
*)
    INCLUDE_RULES="include $abs_builddir/build/rules.mk"
    INCLUDE_OUTPUTS="include $abs_srcdir/build-outputs.mk"
    ;;
esac

AC_SUBST(INCLUDE_RULES)
AC_SUBST(INCLUDE_OUTPUTS)

if test -d $srcdir/test; then
    test_Makefile="test/Makefile"
fi

dnl
dnl everthing is done.
MAKEFILES="Makefile"
AC_OUTPUT([
    tcnative.pc
    $MAKEFILES
	],[
TCNATIVE_MAJOR_VERSION=$TCNATIVE_MAJOR_VERSION
])