×

Use the meta-package x86_64-microarch-level in requirements/build in conda recipes to set up the compiler flags and set up the virtual package requirements in the run requirements. When building packages on CI, level=4 will not be guaranteed, so you can only use level<=3 to build. The run_exports only has a lower bound and therefore a level=2 build can be installed on a level=3 user system. A tighter bound is not added because we want to be able to test both level=2 and level=3 on a CI machine with level=3. Therefore in order to prioritise the highest level, use the build number to prioritise the level. In [rare circumstances](https://github.com/conda-forge/microarch-level-feedstock/issues/13#issuecomment-2551385113) where a particular level needs to be forced, this can be achieved by overriding the `__archspec` [virtual package](https://docs.conda.io/projects/conda/en/stable/user-guide/tasks/manage-virtual.html) by setting the `CONDA_OVERRIDE_ARCHSPEC` environment variable during the environment solve. For example, setting `CONDA_OVERRIDE_ARCHSPEC=x86_64` will force level=1. For levels higher than 1 `CONDA_OVERRIDE_ARCHSPEC=x86_64_vx` will force level=x. For example, `CONDA_OVERRIDE_ARCHSPEC=x86_64_v2` will force level=2. Note that no checks will be done to ensure that the level is viable. Only supported on Linux and macOS.

Uploaded Tue Apr 1 02:51:38 2025
md5 checksum beb3c673711480b3709706f3f77a05cf
build 2_bulldozer
build_number 2
depends __unix
license BSD-3-Clause
license_family BSD
md5 beb3c673711480b3709706f3f77a05cf
name x86_64-microarch-level
noarch generic
sha1 43a4c18d9c22d016d461b7f00d2dfa8ce91ca571
sha256 8cda0d0c8e392f0a21bb3e6401af831f6266b119b36c8ea341681dc161f626ed
size 8115
subdir noarch
timestamp 1737665561313
version 2