# Copyright 1999-2004 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header$
#
# Author: Danny van Dyk <azarah@gentoo.org>
#

ECLASS=fortran
INHERITED="$INHERITED $ECLASS"

DESCRIPTION="Based on the ${ECLASS} eclass"

# need_fortran <profiles>
#
#  profiles = <profile> ... <profile>
#  profile = <compiler>-<version>
#
#  compiler:
#    * f77 - GCC Fortran 77
#    * f2c - Fortran 2 C Translator
#    * ifc - Intel Fortran Compiler
need_fortran() {
	if [ -z "$@" ]; then
		eerror "Call need_fortran with at least one argument !"
	fi 
	FORTAN=""
	for PROFILE in $@; do
		case ${PROFILE} in
			f77)
				if [ -x "$(which g77 2> /dev/null)" ]; then
					FORTRAN="${FORTRAN} f77"
				fi
				;;
			f2c)
				if [ -x "$(which f2c 2> /dev/null)" ]; then
					FORTRAN="${FORTRAN} f2c"
				fi
				;;
			ifc)
				case ${ARCH} in
					x86|ia64)
						if [ -x "$(which if2 2> /dev/null)" ]; then
							FORTRAN="${FORTRAN} ifc"
						fi
						;;
					*)
						;;
				esac
				;;
		esac
	done
	if [ -z "${FORTRAN}" ]; 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 ${PROFILE} in
				f77)
					eerror "[${i}] USE=\"f77\" 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: $@"
		einfo "Installed are:${FORTRAN}"
	fi
	
}