mcpp:plugins 0.1.0: the official rule collection, selected by features - #1
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clang's own CUDA wrapper includes curand_mtgp32_kernel.h unconditionally. On a developer machine the header was found in the host's /usr/include and the dependency went unnoticed; the CI runner, with no host CUDA, refused it. The rule now adds xim:libcurand's include directory to the device compile and refuses the clang route without it, naming the [xlings.workspace] entry to add. The consumer fixture declares it.
curand_mtgp32_kernel.h includes <nv/target> from CCCL, which the 12.x toolkits ship as the separate cuda-cccl package and which the host's /usr/include had supplied silently as well. The rule adds the payload's include directory (and include/cccl for the 13.x layout) and refuses the clang route without it, naming both entries; the fixture declares it.
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What this is
One package,
mcpp:plugins, carrying the build plugins the mcpp project maintains. A consumer selects the members it needs through features and imports each under the module name the member declares:Members in 0.1.0:
mcpp.rules.cuda(featurerules-cuda, mcpp >= 2026.9.5.2) andmcpp.rules.spirv(featurerules-spirv, mcpp >= 2026.9.5.3). Both were previously rule packages underexamples/in the mcpp repository; that placement is withdrawn.Naming
mcpp.rules.<x>for rule packages,mcpp.tools.<x>for build-time utilities,mcpp.pluginsfor the lib root.mcpp.build.*is the engine's own module family and is not used.Engine dependency
A host-module package contributes every module interface unit among its feature-resolved sources (mcpp 2026.9.5.3, e2e 610 in mcpp-community/mcpp). The CI pin
MCPP_VERSION: 2026.9.5.3therefore goes green once that release is published; until then the workflow's download step fails by construction.Verification on the author's machine
tests/spirv-consumer:magic=07230203 words=370tests/cuda-consumer:12 24 36 48on the CPU variant and on the RTX 4080 through the clang route