# Copyright 1999-2003 Gentoo Technologies, Inc.
# Distributed under the terms of the GNU General Public License v2
# $Header: $

inherit fortran versionator

DESCRIPTION="Model-Independent Parameter Estimation"
HOMEPAGE="http://www.sspa.com/pest"
SRC_URI="http://www.sspa.com/pest/download/unixpest.zip \
		http://www.simulistics.com/documents/pestman.pdf"

# PEST uses '_' between versions
MY_PV=$(replace_all_version_separators '_')

# License is poorly specified on the SSPA web site.  It only says that
# Pest is freeware.
LICENSE="public-domain"
SLOT="0"
KEYWORDS="~amd64"
IUSE="doc"
DEPEND="app-arch/unzip"

# Need a Fortran 90 compiler.
FORTRAN="gfortran ifc"

src_unpack() {
	cd "${WORKDIR}"
	mkdir pest
	cd pest
	unzip "${DISTDIR}"/unixpest.zip
	tar xvf "pest${MY_PV}.tar"

	# I decided it was cleaner to make all edits with sed, rather than a patch.
	sed -i 's:^INSTALLDIR=.*$:INSTALLDIR=${DESTDIR}\/usr\/bin:g' makefile
	for file in makefile pest.mak ppest.mak pestutl1.mak pestutl2.mak pestutl3.mak pestutl4.mak pestutl5.mak sensan.mak mpest.mak
		do
		sed -i 's:^F90=.*:F90=${FC}:g' "${file}"
		sed -i 's:^LD=.*:LD=${FC}:g' "${file}"
		if [ ${file} != 'makefile' ]; then 
			sed -i 's:^FFLAGS=.*$:FFLAGS=-c:g' "${file}"
		fi
		done
}


src_compile() {
	FC="${FORTRANC}"
	export FC
	cd "${WORKDIR}/pest"
	make cppp || die "cppp make failed"
	for mfile in pest.mak ppest.mak pestutl1.mak pestutl2.mak pestutl3.mak pestutl4.mak pestutl5.mak sensan.mak mpest.mak
		do
			make -f ${mfile} all || die "${mfile} make failed"
		done
}

src_install() {
	cd "${WORKDIR}"/pest

	# Took this snippet from 'dobin'
	if [[ ! -d "${D}${DESTTREE}/bin" ]]; then
	    install -d "${D}${DESTTREE}/bin" || exit 3
	fi

	emake install DESTDIR="${D}" || die "emake install failed"

	if use doc ; then
		# Took the following from 'dodoc' in order to not compress
		# the pdf file.  'dodoc' always compresses.
		dir="${D}usr/share/doc/${PF}/${DOCDESTTREE}"
		if [ ! -d "${dir}" ] ; then
	        install -d "${dir}"
		fi
		install -m0644 "${DISTDIR}"/pestman.pdf "${dir}"
	fi

}