added new fortran eclass

git-svn-id: http://overlays.gentoo.org/svn/proj/science/overlay@296 32389bae-6d03-0410-99cf-db05cde120eb

1 files changed, 219 insertions, 0 deletions

diff --git a/eclass/fortran.eclass b/eclass/fortran.eclass
new file mode 100644
index 000000000..6cfee4ec2
--- /dev/null
+++ b/eclass/fortran.eclass
@@ -0,0 +1,219 @@
+# 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 1.16 2006/06/05 08:51:09 spyderous Exp $
+#
+# Author: Danny van Dyk <kugelfang@gentoo.org>
+#
+
+inherit eutils autotools
+
+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 ${FORTRANC})_CONF})
+}
+
+# need_fortran(<profiles>):
+#  profiles = <profile> ... <profile>
+#
+#  profile:
+#   * gfortran - GCC Fortran 95
+#   * g77 - GCC Fortran 77
+#   * f2c - Fortran 2 C Translator
+#   * ifc - Intel Fortran Compiler
+#   * pgf77 - Portland Group Fortran 77 compiler
+#   * pgf90 - Portland Group Fortran 90/95 compiler
+#
+# Checks if at least one of <profiles> is installed.
+# Checks also if F77 (the fortran compiler to use) is available
+# on the System.
+need_fortran() {
+	if [ -z "$*" ]; then
+		eerror "Call need_fortran with at least one argument !"
+	fi
+	local AVAILABLE
+	local PROFILE
+	for PROFILE in $@; do
+		case ${PROFILE} in
+			gfortran)
+				if [ -x "$(which gfortran 2> /dev/null)" ]; then
+					AVAILABLE="${AVAILABLE} gfortran"
+				fi
+				;;
+			g77)
+				if [ -x "$(which g77 2> /dev/null)" ]; then
+					AVAILABLE="${AVAILABLE} g77"
+				fi
+				;;
+			f2c)
+				if [ -x "$(which f2c 2> /dev/null)" ]; then
+					AVAILABLE="${AVAILABLE} f2c"
+				fi
+				;;
+			pgf77)
+				if [ -x "$(which pgf77 2> /dev/null)" ]; then
+					AVAILABLE="${AVAILABLE} pgf77"
+				fi
+				;;
+			pgf90)
+				if [ -x "$(which pgf90 2> /dev/null)" ]; then
+					AVAILABLE="${AVAILABLE} pgf90"
+                else
+                    echo "Else..."
+				fi
+				;;
+			ifc)
+				case ${ARCH} in
+					x86|ia64|amd64)
+						if [ -x "$(which ifort 2> /dev/null)" ]; then
+							AVAILABLE="${AVAILABLE} ifort"
+						elif [ -x "$(which ifc 2> /dev/null)" ]; then
+							AVAILABLE="${AVAILABLE} ifc"
+						fi
+						;;
+					*)
+						;;
+				esac
+				;;
+		esac
+	done
+	AVAILABLE="${AVAILABLE/^[[:space:]]}"
+	use debug && echo ${AVAILABLE}
+	if [ -z "${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 ${PROFILE} in
+				gfortran)
+					eerror "[${i}] USE=\"fortran\" emerge =sys-devel/gcc-4*"
+					;;
+				g77)
+					eerror "[${i}] USE=\"fortran\" emerge =sys-devel/gcc-3*"
+					;;
+				f2c)
+					eerror "[${i}] emerge dev-lang/f2c"
+					;;
+				pgf90)
+					eerror "[${i}] emerge dev-lang/pgi-workstation"
+					;;
+				pgf77)
+					eerror "[${i}] emerge dev-lang/pgi-workstation"
+					;;
+				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 "${F77}" ]; then
+ 				if [ "${F77}" != "pgf77" ] && [ "${FC}" != "pgf90"]; then
+					FC="${F77}"						# F77 overwrites FC
+ 				fi
+			fi
+			if [ -n "${FC}" -a -n "${F2C}" ]; then
+				ewarn "Using ${FC} and f2c is impossible. Disabling F2C !"
+				F2C=""							# Disabling f2c
+				MY_FORTRAN="$(basename ${FC})"	# set MY_FORTRAN to filename of
+												# the Fortran Compiler
+			else
+				if [ -n "${F2C}" ]; then
+					MY_FORTRAN="$(basename ${F2C})"
+				else
+ 					if [ "${FC}" == "pgf90" ]; then
+						MY_FORTRAN="$(basename ${FC})"
+ 					else
+						MY_FORTRAN="$(basename ${F77})"
+ 					fi
+				fi
+			fi
+		fi
+
+		# default to gfortran if available, g77 if not
+		use debug && echo "MY_FORTRAN: \"${MY_FORTRAN}\""
+		if hasq gfortran ${AVAILABLE}; then
+			MY_FORTRAN=${MY_FORTRAN:=gfortran}
+		elif hasq g77 ${AVAILABLE}; then
+			MY_FORTRAN=${MY_FORTRAN:=g77}
+		else
+			# Default to the first valid Fortran compiler
+			for i in ${AVAILABLE}; do
+				MY_FORTRAN=$i
+				break
+			done
+		fi
+		use debug && echo "MY_FORTRAN: \"${MY_FORTRAN}\""
+
+		if ! hasq ${MY_FORTRAN} ${AVAILABLE}; then
+			eerror "Current Fortran Compiler is set to ${MY_FORTRAN}, which is not usable with this package !"
+			die "Wrong Fortran Compiler !"
+		fi
+
+		case ${MY_FORTRAN} in
+			gfortran|g77|ifc|ifort|f2c|f95|pgf90|pgf77)
+				FORTRANC="${MY_FORTRAN}"
+		esac
+	fi
+	use debug && echo "FORTRANC: \"${FORTRANC}\""
+ 	einfo "Using $FORTRANC"
+}
+
+# patch_fortran():
+#  Apply necessary patches for ${FORTRANC}
+patch_fortran() {
+	if [ -z "${FORTRANC}" ]; then
+		return
+	fi
+	local PATCHES=$(find ${FILESDIR} -name "${P}-${FORTRANC}-*")
+	einfo "Applying patches for selected FORTRAN compiler: ${FORTRANC}"
+	local PATCH
+	if [ -n "${PATCHES}" ]; then
+		for PATCH in ${PATCHES}; do
+			epatch ${PATCH}
+		done
+		eautoreconf
+	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:="gfortran 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