# Copyright 1999-2007 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/sci-libs/scipy/scipy-0.5.2.1.ebuild,v 1.4 2007/09/11 17:32:38 bicatali Exp $

NEED_PYTHON=2.3

inherit eutils distutils fortran

SRC_URI="mirror://sourceforge/${PN}/${P}.tar.gz"
DESCRIPTION="Scientific algorithms library for Python"
HOMEPAGE="http://www.scipy.org/"
LICENSE="BSD"

SLOT="0"

IUSE="fftw umfpack sandbox"

KEYWORDS="~amd64 ~ppc ~x86"

RDEPEND=">=dev-python/numpy-1.0.3.1
	virtual/blas
	virtual/lapack
	fftw? ( =sci-libs/fftw-2.1* )
	umfpack? ( sci-libs/umfpack )
	sandbox? ( >=sci-libs/netcdf-3.6 x11-libs/libX11 )"

DEPEND="${RDEPEND}
	umfpack? ( dev-lang/swig )"

# test still buggy on lapack with 2 failures on check_syevr
# (lapack float). check every version bump.
RESTRICT="test"

DOCS="THANKS.txt DEVELOPERS.txt LATEST.txt TOCHANGE.txt FORMAT_GUIDELINES.txt"

scipy_fortran_setup() {
	FORTRAN="gfortran g77 ifc"
	fortran_pkg_setup
	local fc=
	case "${FORTRANC}" in
		gfortran) fc="gnu95" ;;
		g77) fc="gnu" ;;
		ifc|ifort)
			if use ia64; then
				fc="intele"
			elif use amd64; then
				fc="intelem"
			else
				fc="intel"
			fi
			;;
		*)	eerror "Unknown fortran compiler: ${FORTRANC}"
			die "scipy_fortran_setup failed" ;;
	esac

	# when fortran flags are set, pic is removed.
	use amd64 && [[ -n "${FFLAGS}" ]] && FFLAGS="${FFLAGS} -fPIC"
	export SCIPY_FCONFIG="config_fc --fcompiler=${fc}"
}

# see numpy ebuild about unsetting LDFLAGS
LDFLAGS_sav="${LDFLAGS}"
unset LDFLAGS

pkg_setup() {
	[[ -n "${LDFLAGS_sav}" ]] && einfo "Ignoring LDFLAGS=${LDFLAGS_sav}"
	if use umfpack && ! built_with_use dev-lang/swig python; then
		eerror "With umfpack enabled you need"
		eerror "dev-lang/swig with python enabled"
		einfo  "Please re-emerge swig with USE=python"
		die "needs swig with python"
	fi
	# scipy automatically detects libraries by default
	export FFTW=None FFTW3=None UMFPACK=None DJBFFT=None
	use fftw && unset FFTW
	use umfpack && unset UMFPACK
	use sandbox && elog "Warning: using sandbox modules at your own risk!"
	scipy_fortran_setup
}

src_unpack() {
	unpack ${A}
	cd "${S}"
	# most of these patches should be useless in versions >=0.5.3)
	# various patches from scipy svn and to allow sandbox modules
	local TP=${PN}-0.5.2
	epatch "${FILESDIR}"/${TP}-signals.patch
	epatch "${FILESDIR}"/${TP}-viewer.patch
	epatch "${FILESDIR}"/${TP}-randomkit.patch
	epatch "${FILESDIR}"/${TP}-montecarlo-test.patch
	epatch "${FILESDIR}"/${TP}-minpack.patch
	epatch "${FILESDIR}"/${TP}-bspline.patch
	epatch "${FILESDIR}"/${TP}-nonexisting.patch
	epatch "${FILESDIR}"/${TP}-cdf.patch
	use sandbox && cp "${FILESDIR}"/enabled_packages.txt Lib/sandbox/
}

src_compile() {
	distutils_src_compile ${SCIPY_FCONFIG}
}

src_test() {
	"${python}" setup.py install \
		--home="${S}"/test \
		--no-compile \
		${SCIPY_FCONFIG} || die "install test failed"
	pushd "${S}"/test/lib*/python
	PYTHONPATH=. "${python}" -c \
		"import scipy as s;import sys;sys.exit(s.test(10,3))"  \
		> test.log 2>&1
	grep -q OK test.log || die "test failed"
	popd
	rm -rf test
}

src_install() {
	distutils_src_install ${SCIPY_FCONFIG}
}

pkg_postinst() {
	elog "You might want to set the variable SCIPY_PIL_IMAGE_VIEWER"
	elog "to your prefered image viewer if you don't like the default one. Ex:"
	elog "\t echo \"export SCIPY_PIL_IMAGE_VIEWER=display\" >> ~/.bashrc"
}