# Copyright 1999-2008 Gentoo Foundation
# 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 
	doc? ( 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"

S="${WORKDIR}/${PN}"

src_unpack() {
	mkdir pest
	cd pest
	unpack unixpest.zip
	tar xvf "${S}/pest${MY_PV}.tar"

	# I decided it was cleaner to make all edits with sed, rather than a patch.
	sed -i \
		-e "s;^F90=.*;F90=${FORTRANC};" \
		-e "s;^LD=.*;LD=${FORTRANC};" \
		 *.mak makefile
	sed -i \
		-e "s;^FFLAGS=.*;FFLAGS=${FFLAGS:--O2 -c};" \
		 *.mak
	sed -i \
		-e "s;^INSTALLDIR=.*;INSTALLDIR=${D}/usr/bin;" \
		-e 's;^install :;install :\n\tinstall -d $(INSTALLDIR);' \
		 makefile
}


src_compile() {
	FC="${FORTRANC}"
	export FC
	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() {
	emake install || die "emake install failed"

	if use doc ; then
		dir="${D}usr/share/doc/${PF}/${DOCDESTTREE}"
		insinto "$dir"
		doins "${DISTDIR}"/pestman.pdf 
	fi

}