bc209c470d
Currently, compiler flags and variants are inconsistent: compiler flags set for a
package are inherited by its dependencies, while variants are not. We should have these
be consistent by allowing for inheritance to be enabled or disabled for both variants
and compiler flags.
- [x] Make new (spec language) operators
- [x] Apply operators to variants and compiler flags
- [x] Conflicts currently result in an unsatisfiable spec
(i.e., you can't propagate two conflicting values)
What I propose is using two of the currently used sigils to symbolized that the variant
or compiler flag will be inherited:
Example syntax:
- `package ++variant`
enabled variant that will be propagated to dependencies
- `package +variant`
enabled variant that will NOT be propagated to dependencies
- `package ~~variant`
disabled variant that will be propagated to dependencies
- `package ~variant`
disabled variant that will NOT be propagated to dependencies
- `package cflags==True`
`cflags` will be propagated to dependencies
- `package cflags=True`
`cflags` will NOT be propagated to dependencies
Syntax for string-valued variants is similar to compiler flags.
27 lines
734 B
Python
27 lines
734 B
Python
# Copyright 2013-2022 Lawrence Livermore National Security, LLC and other
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# Spack Project Developers. See the top-level COPYRIGHT file for details.
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#
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# SPDX-License-Identifier: (Apache-2.0 OR MIT)
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import sys
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from spack.package import *
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class Hypre(Package):
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"""Hypre is included here as an example of a package that depends on
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both LAPACK and BLAS."""
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homepage = "http://www.openblas.net"
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url = "http://github.com/xianyi/OpenBLAS/archive/v0.2.15.tar.gz"
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version("0.2.15", "b1190f3d3471685f17cfd1ec1d252ac9")
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depends_on("lapack")
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depends_on("blas")
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variant(
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"shared",
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default=(sys.platform != "darwin"),
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description="Build shared library (disables static library)",
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)
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