Initial version of fortran.eclass. See BUG #65950.

1 files changed, 128 insertions, 0 deletions

diff --git a/eclass/fortran.eclass b/eclass/fortran.eclass
new file mode 100644
index 000000000000..8c491e37ebe0
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+++ b/eclass/fortran.eclass
@@ -0,0 +1,128 @@
+# 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 1.1 2004/10/01 12:08:16 kugelfang Exp $
+#
+# Author: Danny van Dyk <kugelfang@gentoo.org>
+#
+
+ECLASS=fortran
+INHERITED="$INHERITED $ECLASS"
+
+DESCRIPTION="Based on the ${ECLASS} eclass"
+
+# need_fortran(<profiles>):
+#  profiles = <profile> ... <profile>
+#  profile = [path/to/]<compiler>
+#
+#  compiler:
+#   * f77 - GCC Fortran 77
+#   * f2c - Fortran 2 C Translator
+#   * ifc - Intel Fortran Compiler
+#
+# Checks if at least one of <profiles> is installed.
+# Checks also if F77 (the fortran compiler to use) is available
+# on the System.
+need_fortran() {
+	if [ -z "$@" ]; then
+		eerror "Call need_fortran with at least one argument !"
+	fi 
+	local AVAILABLE=""
+	for PROFILE in $@; do
+		case ${PROFILE} in
+			f77)
+				if [ -x "$(which g77 2> /dev/null)" ]; then
+					AVAILABLE="${AVAILABLE} f77"
+				fi
+				;;
+			f2c)
+				if [ -x "$(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="${FORTRAN} ifc"
+						fi
+						;;
+					*)
+						;;
+				esac
+				;;
+		esac
+	done
+	if [ -z "${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 ${PROFILE} in
+				f77)
+					eerror "[${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: $@"
+		einfo "Installed are:${AVAILABLE}"
+		if [ -n "${F77}" ]; then
+			MY_F77="$(basename ${F77})"
+			case ${MY_F77} in
+				g77)
+					TEST="${AVAILABLE:-f77}"
+					;;
+				ifc|f2c)
+					TEST="${AVAILABLE:-${MY_F77}}"
+			esac
+			if [ "${TEST}" == "${AVAILABLE}" ]; then
+				warn "F77 is set to ${F77}, which is not available \
+					on this System !"
+				F77=${AVAILABLE##\ *}
+			fi
+		fi
+	fi
+}
+
+# patch_fortran():
+#  Apply necessary patches for ${F77}
+patch_fortran() {
+	PATCHES=${FILESDIR}/${P}-$(basename ${F77})*
+	if [ -n "${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:
+FORTRAN="f77"
+fortran_pkg_setup() {
+	need_fortran ${FORTRAN}
+}
+
+# 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