# Copyright 1999-2004 Gentoo Foundation # Distributed under the terms of the GNU General Public License v2 # $Header: /var/cvsroot/gentoo-x86/eclass/fortran.eclass,v 1.6 2005/03/08 18:28:38 vapier Exp $ # # Author: Danny van Dyk <kugelfang@gentoo.org> # inherit eutils DESCRIPTION="Based on the ${ECLASS} eclass" IUSE="debug" #DEPEND="virtual/fortran" # Let's aim for this... # Which Fortran Compiler has been selected ? export FORTRANC # These are the options to ./configure / econf that enable the usage # of a specific Fortran Compiler. If your package uses a different # option that the one listed here, overwrite it in your ebuild. g77_CONF="--with-f77" f2c_CONF="--with-f2c" # This function prints the necessary options for the currently selected # Fortran Compiler. fortran_conf() { echo $(eval echo \${$(echo -n ${FORTRANC})_CONF}) } # need_fortran(<profiles>): # profiles = <profile> ... <profile> # # profile: # * g77 - GCC Fortran 77 # * f2c - Fortran 2 C Translator # * ifc - Intel Fortran Compiler # # Checks if at least one of <profiles> is installed. # Checks also if F77 (the fortran compiler to use) is available # on the System. need_fortran() { if [ -z "$*" ]; then eerror "Call need_fortran with at least one argument !" fi local AVAILABLE local PROFILE for PROFILE in $@; do case ${PROFILE} in g77) if [ -x "$(which g77 2> /dev/null)" ]; then AVAILABLE="${AVAILABLE} g77" fi ;; f2c) if [ -x "$(which f2c 2> /dev/null)" ]; then AVAILABLE="${AVAILABLE} f2c" fi ;; ifc) case ${ARCH} in x86|ia64) if [ -x "$(which if2 2> /dev/null)" ]; then AVAILABLE="${AVAILABLE} ifc" fi ;; *) ;; esac ;; esac done AVAILABLE="${AVAILABLE/^[[:space:]]}" use debug && echo ${AVAILABLE} use if [ -z "${AVAILABLE}" ]; then eerror "None of the needed Fortran Compilers ($@) is installed." eerror "To install one of these, choose one of the following steps:" i=1 for PROFILE in $@; do case ${PROFILE} in g77) eerror "[${i}] USE=\"fortran\" emerge sys-devel/gcc" ;; f2c) eerror "[${i}] emerge dev-lang/f2c" ;; ifc) case ${ARCH} in x86|ia64) eerror "[${i}] emerge dev-lang/ifc" ;; *) ;; esac esac i=$((i + 1)) done die "Install a Fortran Compiler !" else einfo "You need one of these Fortran Compilers: $@" einfo "Installed are: ${AVAILABLE}" if [ -n "${F77}" -o -n "${FC}" -o -n "${F2C}" ]; then if [ -n "${F77}" ]; then FC="${F77}" # F77 overwrites FC fi if [ -n "${FC}" -a -n "${F2C}" ]; then ewarn "Using ${FC} and f2c is impossible. Disabling f2c !" F2C="" # Disabling f2c MY_FORTRAN="$(basename ${FC})" # set MY_FORTRAN to filename of # the Fortran Compiler elif [ -n "${F2C}" ]; then MY_FORTRAN="$(basename ${F2C})" fi fi # default to g77 use debug && echo "MY_FORTRAN: \"${MY_FORTRAN}\"" MY_FORTRAN=${MY_FORTRAN:=g77} use debug && echo "MY_FORTRAN: \"${MY_FORTRAN}\"" if ! hasq ${MY_FORTRAN} ${AVAILABLE}; then eerror "Current Fortan Compiler is set to ${MY_FORTRAN}, which is not usable with this package !" die "Wrong Fortran Compiler !" fi case ${MY_FORTRAN} in g77|ifc|f2c) FORTRANC="${MY_FORTRAN}" esac fi use debug && echo "FORTRANC: \"${FORTRANC}\"" } # patch_fortran(): # Apply necessary patches for ${FORTRANC} patch_fortran() { if [ -z "${FORTRANC}" ]; then return fi local PATCHES=$(find ${FILESDIR}/ -name "${P}-${FORTRANC}*") #local PATCHES=${FILESDIR}/${P}-${FORTRANC}* local PATCH if [ -n "${PATCHES}" ]; then for PATCH in ${PATCHES}; do epatch ${PATCH} done fi } # fortran_pkg_setup(): # Set FORTRAN to indicate the list of Fortran Compiler that # can be used for the ebuild. # If not set in ebuild, FORTRAN will default to f77 fortran_pkg_setup() { need_fortran ${FORTRAN:=g77} } # fortran_src_unpack(): # Run patch_fortran if no new src_unpack() is defined. fortran_src_unpack() { unpack ${A} cd ${S} patch_fortran } EXPORT_FUNCTIONS pkg_setup src_unpack