You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
257 lines
6.1 KiB
257 lines
6.1 KiB
# Copyright 1999-2013 Gentoo Foundation
|
|
# Distributed under the terms of the GNU General Public License v2
|
|
# $Header: /var/cvsroot/gentoo-x86/eclass/fortran-2.eclass,v 1.20 2013/07/29 20:13:57 jlec Exp $
|
|
|
|
# @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
|
|
|