casa-mp-base

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# Copyright (c) 2014 The MacPorts Project

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# 1. Redistributions of source code must retain the above copyright

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# 2. Redistributions in binary form must reproduce the above copyright

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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS

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#

# This PortGroup sets up default variants for projects that want multiple

# compilers for providing options for, example, different optimizations. More

# importantly, this port group provides the ability to interact with packages

# that need MPI since MPI is just a wrapper around a compiler.

#

# Usage:

#

#   PortGroup               compilers 1.0

#

# Available procedures:

# compilers.choose {args}

#   Possible arguments: cc cxx cpp objc fc f77 f90

#   A list of which of these compilers you want to be set by the variants (e.g. ${configure.cc}).

#   The default is all of them. Must come before compilers.setup in the Portfile to have an effect.

# compilers.set_variants_conflict {args}

#   Add specified variants to the conflicts list of all variants created by this PortGroup.

#   Useful if another compiler variant is created explicitly in the Portfile. Must come before compilers.setup.

# compilers.setup {args}

#   Possible arguments: any compiler variant name with a minus removes it from the list of variants, e.g. -clang.

#   -gcc, -clang remove all compilers of that category. -fortran removes gfortran and g95.

#   Blacklisted compilers are automatically removed, as are ones that do not support the compilers in compilers.choose:

#   e.g. if choose is just f90, clang variants will not be added.

#   List "default_fortran" to make a Fortran variant be selected by default.

#   This procedure must be in the Portfile to create all the compiler variants and set the default.

#   Appropriate conflicts, dependencies, etc. are created too.

#   If a variant is declared already in the Portfile before this line, it will not be redefined.

# c_active_variant_name {depspec}: which C variant a dependency has set

# c_variant_name {}: which C variant is set

# c_variant_isset {}: is a C variant set

# fortran_active_variant_name {depspec}: which Fortran variant a dependency has set

# fortran_variant_name {}: which Fortran variant is set

# fortran_compiler_name {arg}:  converts gfortran into the actual Fortran compiler name; otherwise returns arg