pocl

USE flags

• accel - Enable the generic hardware accelerator device driver
• conformance - Ensures that certain build options which would result in non-conformant pocl build stay disabled. Note that this does not quarantee a fully conformant build of pocl.
• cuda - Enable the CUDA backend for NVIDIA GPUs
• debug - Enable extra debug codepaths, like asserts and extra output. If you want to get meaningful backtraces see https://wiki.gentoo.org/wiki/Project:Quality_Assurance/Backtraces
• doc - Add extra documentation (API, Javadoc, etc). It is recommended to enable per package instead of globally
• examples - Install examples, usually source code
• float-conversion - When enabled, OpenCL printf() call's f/e/g formatters are handled by pocl. When disabled, these are handled by system C library.
• hardening - Enable hardening against various attacks. May worsen performance
• hwloc - Enable hwloc support
• lto - Adds support for link time optimization
• memmanager - Enables custom memory manager. Except for special circumstances, this should be disabled
• test - Enable dependencies and/or preparations necessary to run tests (usually controlled by FEATURES=test but can be toggled independently)