#! /bin/sh
#
# configure
#
# $Id: //poco/1.3/dist/configure#6 $
#
# Configuration script for POCO.
#
# Invoke configure --help for help.
#

showhelp()
{
cat << ENDHELP 
usage: configure {options}
Configure the POCO C++ Libraries.

Options:
  --help
    Display this help screen.

  --config=<config_name>   
    Use the given build configuration.
    Available configurations are:

`ls -C $base/build/config/`

  --prefix=<install_prefix>
    Use the given install directory for make install.
    Default is /usr/local.

  --stdcxx-base=<apache_stdcxx_install_prefix>
    If (and only if) the $base/build/config selected with --config
    uses the Apache stdcxx library, then apache_stdcxx_install_prefix
    specifies the base directory where stdcxx is installed.

  --no-tests
    Do not build testsuites.

  --no-samples
    Do not build samples.

  --no-wstring
    Compile with -DPOCO_NO_WSTRING.
    Useful if your C++ compiler does not support std::wstring
    (such as uclibc-based systems).

  --no-fpenvironment
    Compile with -DPOCO_NO_FPENVIRONMENT.
    Useful if your C++ compiler has incomplete floating-point support
    (such as uclibc-based systems).

  --omit=<component>{,<component>}
    Do not build the specified component(s).

ENDHELP
}

# save cwd
build=`pwd`
# get directory where we are located
cd `dirname $0`
base=`pwd`
cd $build
if [ `uname` = "QNX" ] ; then
	EXPR=expr
	NOTFOUND=0
else
	EXPR="expr --"
	NOTFOUND=""
fi

tests="tests"
samples="samples"
flags=""
omit=""
# parse arguments
while [ "$1" != "" ] ; do
	val=`$EXPR "$1" : '--config=\(.*\)'`
	if [ "$val" != "$NOTFOUND" ] ; then
		config=$val;
	fi
	
	val=`$EXPR "$1" : '--prefix=\(.*\)'`
	if [ "$val" != "$NOTFOUND" ] ; then
		prefix=$val
	fi

	val=`$EXPR $1 : '--stdcxx-base=\(.*\)'`
	if [ "$val" != "$NOTFOUND" ] ; then
		stdcxx_base=$val
	fi

	val=`$EXPR "$1" : '--omit=\(.*\)'`
	if [ "$val" != "$NOTFOUND" ] ; then
		omit="$omit `echo $val | tr ',;' '  '`"
	fi
	
	if [ "$1" = "--no-samples" ] ; then
		samples=""
	fi
	
	if [ "$1" = "--no-tests" ] ; then
		tests=""
	fi
	
	if [ "$1" = "--no-wstring" ] ; then
		flags="$flags -DPOCO_NO_WSTRING"
	fi

	if [ "$1" = "--no-fpenvironment" ] ; then
		flags="$flags -DPOCO_NO_FPENVIRONMENT"
	fi

	if [ "$1" = "--help" ] ; then
		showhelp
		exit 0
	fi

	shift
done

# autodetect build environment
# ...special cases for CYGWIN or MinGW
if [ "$config" = "" ] ; then
	config=`uname`
	cyg=`$EXPR $config : '\(CYGWIN\).*'`
	if [ "$cyg" = "CYGWIN" ] ; then
		config=CYGWIN
    else
        ming=`$EXPR $config : '\(MINGW\).*'`
        if [ "$ming" = "MINGW" ] ; then
            config=MinGW
        fi
    fi
fi

if [ ! -f "$base/build/config/$config" ] ; then
	echo "Unknown configuration: $config"
	echo "Please use the --config option to specify another build configuration"
	echo "The following configurations are available:"
	ls $base/build/config
	exit 1
fi

if [ "$prefix" = "" ] ; then
	prefix=/usr/local
fi

# copy Makefile to build dir
if [ "$base" != "$build" ] ; then
	cp $base/Makefile $build
fi

# create config.make
echo '# config.make generated by configure script' >$build/config.make
echo "POCO_CONFIG = $config" >>$build/config.make
echo "POCO_BASE = $base" >>$build/config.make
echo "POCO_BUILD = $build" >>$build/config.make
echo "POCO_PREFIX = $prefix" >>$build/config.make
echo "POCO_FLAGS = $flags" >>$build/config.make
echo "OMIT = $omit" >>$build/config.make
if [ "$stdcxx_base" != "" ] ; then
	echo "STDCXX_BASE = $stdcxx_base" >>$build/config.make
fi

echo "export POCO_CONFIG" >>$build/config.make
echo "export POCO_BASE" >>$build/config.make
echo "export POCO_BUILD" >>$build/config.make
echo "export POCO_PREFIX" >>$build/config.make
echo "export POCO_FLAGS" >>$build/config.make
if [ "$stdcxx_base" != "" ] ; then
	echo "export STDCXX_BASE" >>$build/config.make
fi

echo ".PHONY: poco" >>$build/config.make
echo "poco: libexecs $tests $samples" >>$build/config.make

echo "Configured for $config"