proj/gentoo: Initial commit

This commit represents a new era for Gentoo:
Storing the gentoo-x86 tree in Git, as converted from CVS.

This commit is the start of the NEW history.
Any historical data is intended to be grafted onto this point.

Creation process:
1. Take final CVS checkout snapshot
2. Remove ALL ChangeLog* files
3. Transform all Manifests to thin
4. Remove empty Manifests
5. Convert all stale $Header$/$Id$ CVS keywords to non-expanded Git $Id$
5.1. Do not touch files with -kb/-ko keyword flags.

Signed-off-by: Robin H. Johnson <robbat2@gentoo.org>
X-Thanks: Alec Warner <antarus@gentoo.org> - did the GSoC 2006 migration tests
X-Thanks: Robin H. Johnson <robbat2@gentoo.org> - infra guy, herding this project
X-Thanks: Nguyen Thai Ngoc Duy <pclouds@gentoo.org> - Former Gentoo developer, wrote Git features for the migration
X-Thanks: Brian Harring <ferringb@gentoo.org> - wrote much python to improve cvs2svn
X-Thanks: Rich Freeman <rich0@gentoo.org> - validation scripts
X-Thanks: Patrick Lauer <patrick@gentoo.org> - Gentoo dev, running new 2014 work in migration
X-Thanks: Michał Górny <mgorny@gentoo.org> - scripts, QA, nagging
X-Thanks: All of other Gentoo developers - many ideas and lots of paint on the bikeshed

1 files changed, 256 insertions, 0 deletions

diff --git a/eclass/fortran-2.eclass b/eclass/fortran-2.eclass
new file mode 100644
index 000000000000..03fb46225790
--- /dev/null
+++ b/eclass/fortran-2.eclass
@@ -0,0 +1,256 @@
+# Copyright 1999-2013 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Id$
+
+# @ECLASS: fortran-2.eclass
+# @MAINTAINER:
+# jlec@gentoo.org
+# sci@gentoo.org
+# @AUTHOR:
+# Author Justin Lecher <jlec@gentoo.org>
+# Test functions provided by Sebastien Fabbro and Kacper Kowalik
+# @BLURB: Simplify fortran compiler management
+# @DESCRIPTION:
+# If you need a fortran compiler, then you should be inheriting this eclass.
+# In case you only need optional support, please export FORTRAN_NEEDED before
+# inheriting the eclass.
+#
+# The eclass tests for working fortran compilers
+# and exports the variables FC and F77.
+# Optionally, it checks for extended capabilities based on
+# the variable options selected in the ebuild
+# The only phase function exported is fortran-2_pkg_setup.
+# @EXAMPLE:
+# FORTRAN_NEEDED="lapack fortran"
+#
+# inherit fortran-2
+#
+# FORTRAN_NEED_OPENMP=1
+
+# @ECLASS-VARIABLE: FORTRAN_NEED_OPENMP
+# @DESCRIPTION:
+# Set to "1" in order to automatically have the eclass abort if the fortran
+# compiler lacks openmp support.
+: ${FORTRAN_NEED_OPENMP:=0}
+
+# @ECLASS-VARIABLE: FORTRAN_STANDARD
+# @DESCRIPTION:
+# Set this, if a special dialect needs to be supported.
+# Generally not needed as default is sufficient.
+#
+# Valid settings are any combination of: 77 90 95 2003
+: ${FORTRAN_STANDARD:=77}
+
+# @ECLASS-VARIABLE: FORTRAN_NEEDED
+# @DESCRIPTION:
+# If your package has an optional fortran support, set this variable
+# to the space separated list of USE triggering the fortran
+# dependency.
+#
+# e.g. FORTRAN_NEEDED=lapack would result in
+#
+# DEPEND="lapack? ( virtual/fortran )"
+#
+# If unset, we always depend on virtual/fortran.
+: ${FORTRAN_NEEDED:=always}
+
+inherit eutils toolchain-funcs
+
+for _f_use in ${FORTRAN_NEEDED}; do
+	case ${_f_use} in
+		always)
+			DEPEND+=" virtual/fortran"
+			break
+			;;
+		no)
+			break
+			;;
+		*)
+			DEPEND+=" ${_f_use}? ( virtual/fortran )"
+			;;
+	esac
+done
+RDEPEND="${DEPEND}"
+
+# @FUNCTION: _fortran_write_testsuite
+# @INTERNAL
+# @DESCRIPTION:
+# writes fortran test code
+_fortran_write_testsuite() {
+	local filebase=${T}/test-fortran
+
+	# f77 code
+	cat <<- EOF > "${filebase}.f"
+	       end
+	EOF
+
+	# f90/95 code
+	cat <<- EOF > "${filebase}.f90"
+	end
+	EOF
+
+	# f2003 code
+	cat <<- EOF > "${filebase}.f03"
+	       procedure(), pointer :: p
+	       end
+	EOF
+}
+
+# @FUNCTION: _fortran_compile_test
+# @USAGE: <compiler> [dialect]
+# @INTERNAL
+# @DESCRIPTION:
+# Takes fortran compiler as first argument and dialect as second.
+# Checks whether the passed fortran compiler speaks the fortran dialect
+_fortran_compile_test() {
+	local filebase=${T}/test-fortran
+	local fcomp=${1}
+	local fdia=${2}
+	local fcode=${filebase}.f${fdia}
+	local ret
+
+	[[ $# -lt 1 ]] && \
+		die "_fortran_compile_test() needs at least one argument"
+
+	[[ -f ${fcode} ]] || _fortran_write_testsuite
+
+	${fcomp} "${fcode}" -o "${fcode}.x" \
+		>> "${T}"/_fortran_compile_test.log 2>&1
+	ret=$?
+
+	rm -f "${fcode}.x"
+	return ${ret}
+}
+
+# @FUNCTION: _fortran-has-openmp
+# @RETURN: return code of the compiler
+# @INTERNAL
+# @DESCRIPTION:
+# See if the fortran supports OpenMP.
+_fortran-has-openmp() {
+	local flag
+	local filebase=${T}/test-fc-openmp
+	local fcode=${filebase}.f
+	local ret
+	local _fc=$(tc-getFC)
+
+	cat <<- EOF > "${fcode}"
+	       call omp_get_num_threads
+	       end
+	EOF
+
+	for flag in -fopenmp -xopenmp -openmp -mp -omp -qsmp=omp; do
+		${_fc} ${flag} "${fcode}" -o "${fcode}.x" \
+			&>> "${T}"/_fortran_compile_test.log
+		ret=$?
+		(( ${ret} )) || break
+	done
+
+	rm -f "${fcode}.x"
+	return ${ret}
+}
+
+# @FUNCTION: _fortran_die_msg
+# @INTERNAL
+# @DESCRIPTION:
+# Detailed description how to handle fortran support
+_fortran_die_msg() {
+	echo
+	eerror "Please install currently selected gcc version with USE=fortran."
+	eerror "If you intend to use a different compiler then gfortran, please"
+	eerror "set FC variable accordingly and take care that the necessary"
+	eerror "fortran dialects are supported."
+	echo
+	die "Currently no working fortran compiler is available"
+}
+
+# @FUNCTION: _fortran_test_function
+# @INTERNAL
+# @DESCRIPTION:
+# Internal test function for working fortran compiler.
+# It is called in fortran-2_pkg_setup.
+_fortran_test_function() {
+	local dialect
+
+	: ${F77:=$(tc-getFC)}
+
+	: ${FORTRAN_STANDARD:=77}
+	for dialect in ${FORTRAN_STANDARD}; do
+		case ${dialect} in
+			77) _fortran_compile_test $(tc-getF77) || \
+				_fortran_die_msg ;;
+			90|95) _fortran_compile_test $(tc-getFC) 90 || \
+				_fortran_die_msg ;;
+			2003) _fortran_compile_test $(tc-getFC) 03 || \
+				_fortran_die_msg ;;
+			2008) die "Future" ;;
+			*) die "${dialect} is not a Fortran dialect." ;;
+		esac
+	done
+
+	tc-export F77 FC
+	einfo "Using following Fortran compiler:"
+	einfo "  F77: ${F77}"
+	einfo "  FC:  ${FC}"
+
+	if [[ ${FORTRAN_NEED_OPENMP} == 1 ]]; then
+		if _fortran-has-openmp; then
+			einfo "${FC} has OPENMP support"
+		else
+			die "Please install current gcc with USE=openmp or set the FC variable to a compiler that supports OpenMP"
+		fi
+	fi
+}
+
+# @FUNCTION: _fortran-2_pkg_setup
+# @INTERNAL
+# @DESCRIPTION:
+# _The_ fortran-2_pkg_setup() code
+_fortran-2_pkg_setup() {
+	for _f_use in ${FORTRAN_NEEDED}; do
+   	case ${_f_use} in
+      	always)
+				_fortran_test_function && break
+	         ;;
+   	   no)
+				einfo "Forcing fortran support off"
+				break
+	         ;;
+   	   *)
+				if use ${_f_use}; then
+					_fortran_test_function && break
+				else
+					unset FC
+					unset F77
+				fi
+   	      ;;
+	   esac
+	done
+}
+
+
+# @FUNCTION: fortran-2_pkg_setup
+# @DESCRIPTION:
+# Setup functionality,
+# checks for a valid fortran compiler and optionally for its openmp support.
+fortran-2_pkg_setup() {
+	case ${EAPI:-0} in
+		0|1|2|3)
+			eqawarn "Support for EAPI < 4 will be removed from the"
+			eqawarn "fortran-2.eclass in until 2013-09-30."
+			eqawarn "Please migrate your package to a higher EAPI"
+			eqawarn "or file a bug at https://bugs.gentoo.org"
+			_fortran-2_pkg_setup ;;
+		4|5)
+			if [[ ${MERGE_TYPE} != binary ]]; then
+				_fortran-2_pkg_setup
+			fi
+			;;
+	esac
+}
+
+case ${EAPI:-0} in
+	0|1|2|3|4|5) EXPORT_FUNCTIONS pkg_setup ;;
+	*) die "EAPI=${EAPI} is not supported" ;;
+esac
+