fortran-2.eclass: fortran_int64_abi_fflags() add

fortran_int64_abi_fflags help you querry for the necessary
compiler flags to enable 64bit int support

Signed-off-by: Justin Lecher <jlec@gentoo.org>

diff --git a/eclass/fortran-2.eclass b/eclass/fortran-2.eclass
index ac89bf1ecc7e03764805f837439d4d720be21a50..6f3c4b283d5c69f4b30230d936cf551dce1e102b 100644 (file)
--- a/eclass/fortran-2.eclass
+++ b/eclass/fortran-2.eclass
@@ -77,6 +77,22 @@ for _f_use in ${FORTRAN_NEEDED}; do
        esac
 done
 
+# @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: