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author | Harmen Stoppels <harmenstoppels@gmail.com> | 2021-11-22 10:47:09 +0100 |
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committer | GitHub <noreply@github.com> | 2021-11-22 10:47:09 +0100 |
commit | 0024e5cc9b5fe2f803d314e80ed14ade22d3bb55 (patch) | |
tree | a8deb401b264228c41a3e817384058ba112ed087 /lib/spack/docs/build_systems | |
parent | cda9d6d98133e6a2eae89d91b0cabce1ce36d48a (diff) | |
download | spack-0024e5cc9b5fe2f803d314e80ed14ade22d3bb55.tar.gz spack-0024e5cc9b5fe2f803d314e80ed14ade22d3bb55.tar.bz2 spack-0024e5cc9b5fe2f803d314e80ed14ade22d3bb55.tar.xz spack-0024e5cc9b5fe2f803d314e80ed14ade22d3bb55.zip |
Make _enable_or_disable(...) return an empty array for conditional variants whose condition is not met (#27504)
Diffstat (limited to 'lib/spack/docs/build_systems')
-rw-r--r-- | lib/spack/docs/build_systems/autotoolspackage.rst | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/lib/spack/docs/build_systems/autotoolspackage.rst b/lib/spack/docs/build_systems/autotoolspackage.rst index 71d8d7d866..d62fb08ce8 100644 --- a/lib/spack/docs/build_systems/autotoolspackage.rst +++ b/lib/spack/docs/build_systems/autotoolspackage.rst @@ -420,6 +420,24 @@ Or when one variant controls multiple flags: config_args += self.with_or_without('memchecker', variant='debug_tools') config_args += self.with_or_without('profiler', variant='debug_tools') + +"""""""""""""""""""" +Conditional variants +"""""""""""""""""""" + +When a variant is conditional and its condition is not met on the concrete spec, the +``with_or_without`` and ``enable_or_disable`` methods will simply return an empty list. + +For example: + +.. code-block:: python + + variant('profiler', when='@2.0:') + config_args += self.with_or_without('profiler) + +will neither add ``--with-profiler`` nor ``--without-profiler`` when the version is +below ``2.0``. + """""""""""""""""""" Activation overrides """""""""""""""""""" |