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authorJustin Lecher <jlec@gentoo.org>2015-11-28 19:53:11 +0100
committerJustin Lecher <jlec@gentoo.org>2015-11-28 19:53:11 +0100
commitd215df7d2187828382b0668509874cf85f712118 (patch)
tree73d78640bd2980bdeb9ffe8044cd293147850c4c /eclass/fortran-2.eclass
parentsci-libs/lapacke-reference: Adopt to current HEAD (diff)
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Merged into tree
Signed-off-by: Justin Lecher <jlec@gentoo.org>
Diffstat (limited to 'eclass/fortran-2.eclass')
-rw-r--r--eclass/fortran-2.eclass276
1 files changed, 0 insertions, 276 deletions
diff --git a/eclass/fortran-2.eclass b/eclass/fortran-2.eclass
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-# Copyright 1999-2015 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
-
-if [[ ! ${_FORTRAN_2_CLASS} ]]; then
-
-# @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_int64_abi_fflags
-# @DESCRIPTION: Return the Fortran compiler flag to enable 64 bit integers for
-# array indices
-# @CODE
-fortran_int64_abi_fflags() {
- debug-print-function ${FUNCNAME} "${@}"
- _FC=$(tc-getFC)
- if [[ ${_FC} == *gfortran* ]]; then
- echo "-fdefault-integer-8"
- elif [[ ${_FC} == ifort ]]; then
- echo "-integer-size 64"
- else
- die "Compiler flag for 64bit interger for ${_FC} unknown"
- fi
-}
-
-# @FUNCTION: _fortran_write_testsuite
-# @INTERNAL
-# @DESCRIPTION:
-# writes fortran test code
-_fortran_write_testsuite() {
- local filebase=${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
-
-_FORTRAN_2_ECLASS=1
-fi