Hi all!
Here follows the updated version with improvements proposed by
mgorny and dilfridge.
diff --git a/eclass/fortran-2.eclass b/eclass/fortran-2.eclass
index 820cbbcb49bd..a0243714b674 100644
--- a/eclass/fortran-2.eclass
+++ b/eclass/fortran-2.eclass
@@ -1,285 +1,289 @@
-# Copyright 1999-2017 Gentoo Foundation
+# Copyright 1999-2018 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
# @ECLASS: fortran-2.eclass
# @MAINTAINER:
# ***@gentoo.org
# ***@gentoo.org
# @AUTHOR:
# Author Justin Lecher <***@gentoo.org>
# Test functions provided by Sebastien Fabbro and Kacper Kowalik
-# @SUPPORTED_EAPIS: 4 5 6
+# @SUPPORTED_EAPIS: 4 5 6 7
# @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
-inherit eutils toolchain-funcs
+inherit toolchain-funcs
+case ${EAPI:-0} in
+ # not used in the eclass, but left for backward compatibility with legacy users
+ 4|5|6) inherit eutils ;;
+ 7) ;;
+ *) die "EAPI=${EAPI} is not supported" ;;
+esac
case ${EAPI:-0} in
- 4|5|6) EXPORT_FUNCTIONS pkg_setup ;;
+ 4|5|6|7) EXPORT_FUNCTIONS pkg_setup ;;
*) die "EAPI=${EAPI} is not supported" ;;
esac
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}
for _f_use in ${FORTRAN_NEEDED}; do
case ${_f_use} in
always)
DEPEND+=" virtual/fortran"
RDEPEND+=" virtual/fortran"
break
;;
no)
break
;;
test)
DEPEND+=" ${_f_use}? ( virtual/fortran )"
;;
*)
DEPEND+=" ${_f_use}? ( virtual/fortran )"
RDEPEND+=" ${_f_use}? ( virtual/fortran )"
;;
esac
done
unset _f_use
# @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=$(tc-getFC)
+ local _FC=$(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() {
debug-print-function ${FUNCNAME} "${@}"
local filebase=${T}/test-fortran
# f77 code
- cat <<- EOF > "${filebase}.f"
+ cat <<- EOF > "${filebase}.f" || die
end
EOF
# f90/95 code
- cat <<- EOF > "${filebase}.f90"
+ cat <<- EOF > "${filebase}.f90" || die
end
EOF
# f2003 code
- cat <<- EOF > "${filebase}.f03"
+ cat <<- EOF > "${filebase}.f03" || die
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() {
debug-print-function ${FUNCNAME} "${@}"
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 "${fcode}.x" \
Post by Andrew Savchenko"${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() {
debug-print-function ${FUNCNAME} "${@}"
local flag
local filebase=${T}/test-fc-openmp
local fcode=${filebase}.f
- local ret
local _fc=$(tc-getFC)
- cat <<- EOF > "${fcode}"
+ cat <<- EOF > "${fcode}" || die
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
+ [[ $? == 0 ]] && break
done
rm -f "${fcode}.x"
return ${ret}
}
# @FUNCTION: _fortran_die_msg
# @INTERNAL
# @DESCRIPTION:
# Detailed description how to handle fortran support
_fortran_die_msg() {
debug-print-function ${FUNCNAME} "${@}"
- echo
+ eerror
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
+ eerror
die "Currently no working fortran compiler is available (see ${T}/_fortran_compile_test.log for information)"
}
# @FUNCTION: _fortran_test_function
# @INTERNAL
# @DESCRIPTION:
# Internal test function for working fortran compiler.
# It is called in fortran-2_pkg_setup.
_fortran_test_function() {
debug-print-function ${FUNCNAME} "${@}"
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
+ _fortran_test_function && break 2
;;
no)
einfo "Forcing fortran support off"
break
;;
*)
if use ${_f_use}; then
- _fortran_test_function && break
+ _fortran_test_function && break 2
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() {
debug-print-function ${FUNCNAME} "${@}"
if [[ ${MERGE_TYPE} != binary ]]; then
_fortran-2_pkg_setup
fi
}
_FORTRAN_2_ECLASS=1
fi
Best regards,
Andrew Savchenko