fortran-2.eclass

Name

fortran-2.eclass -- 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.

Supported EAPIs

5 6 7 8

Example

FORTRAN_NEEDED="lapack fortran"

inherit fortran-2

FORTRAN_NEED_OPENMP=1

Exported Phases

• pkg_setup

Functions

fortran_int64_abi_fflags

Return the Fortran compiler flag to enable 64 bit integers for array indices

fortran-2_pkg_setup

Setup functionality, checks for a valid fortran compiler and optionally for its openmp support.

Variables

FORTRAN_NEED_OPENMP ?= 0

Set to 1 in order to automatically have the eclass abort if the fortran compiler lacks openmp support.

FORTRAN_STANDARD ?= 77

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_NEEDED ?= always

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.

Authors

Author Justin Lecher <jlec@gentoo.org>

Test functions provided by Sebastien Fabbro and Kacper Kowalik

Maintainers

sci@gentoo.org

Reporting Bugs

Please report bugs via https://bugs.gentoo.org/