# Copyright 1999-2006 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: $

inherit eutils

S=${WORKDIR}/${PV}
DESCRIPTION="The CLHEP project is intended to be a set of HEP-specific foundation and
	     utility classes such as random generators, physics vectors, geometry and
	     linear algebra"
SRC_URI="http://wwwasd.web.cern.ch/wwwasd/lhc++/clhep/DISTRIBUTION/distributions/${P}.tgz"
HOMEPAGE="http://proj-clhep.web.cern.ch/proj-clhep/index.html"

SLOT="0"
LICENSE="as-is, GPL-2, BSD, ... NIGHTMARE!"
KEYWORDS="~x86"
IUSE="doc icc"

DEPEND="sys-devel/libtool
	>=sys-devel/autoconf-2.59
	>=sys-devel/automake-1.9
	>=dev-lang/perl-5.8.0
	doc? ( >=app-doc/doxygen-1.4.2 )
	icc? ( dev-lang/icc )"


src_unpack(){
	unpack ${A}
	
	# This is neccesary if both gcc and icc are installed in the system
	# but the icc flag is not turned on
	if ! use icc; then
		for x in $(find ${S}/CLHEP -type f '(' -name configure ')' | sed 's/configure//'); do
			cd ${x}
			epatch ${FILESDIR}/gcc-configure.patch
		done
	fi
}

src_compile() {
	cd ${S}/CLHEP

	if use icc; then
		unset CFLAGS
		unset LDFLAGS
		# This is neccesary because if we don't change the flags
		# everything is compiled with debug support
		CXXFLAGS="-ansi -mp -no-gcc -w1 -O2"
		export CXXFLAGS
	fi

	./configure \
		--prefix=/usr \
		--bindir=/usr/bin/CLHEP \
		--libdir=/usr/lib/CLHEP \
		--datadir=/usr/share/CLHEP \
		--enable-exceptions \
		--disable-dependency-tracking || die "Configure failed"

	emake || die "Build failed"
	
	if use doc; then
		emake docs OPT="$CFLAGS" || die "make docs failed"
		cp ${FILESDIR}/Doxyfile .
		doxygen || Die "Doxygen failed"
	fi

	# make tests
	make check || die "Make tests failed"
}

src_install() {
	cd ${S}/CLHEP
	make DESTDIR=${D} INSTALL="install" install || die "install failed"
	
	if use doc; then
		make DESTDIR=${D} INSTALL="install" install-docs || die "install docs failed"
		mkdir -p ${D}/usr/share/doc/clhep-${PV}
		mv docs/html ${D}/usr/share/doc/clhep-${PV}/.
		mv ${D}/usr/doc/* ${D}/usr/share/doc/clhep-${PV}/.
		rmdir ${D}/usr/doc || die "failed to remove bad doc dir"
	fi

	dodoc INSTALL README
	
	echo 'ROOTPATH=/usr/bin/CLHEP' > 99clhep
	echo 'PATH=/usr/bin/CLHEP' >> 99clhep
	echo 'LDPATH=/usr/lib/CLHEP' >> 99clhep
	doenvd 99clhep

	mkdir -p ${D}/usr/share/CLHEP
	mv ${D}/usr/examples ${D}/usr/share/CLHEP/.
	mv ${D}/usr/data ${D}/usr/share/CLHEP/.
}