No longer infer insufficient LAPACK from libRlapack use#483
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eddelbuettel merged 1 commit intomasterfrom Sep 4, 2025
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No longer infer insufficient LAPACK from libRlapack use#483eddelbuettel merged 1 commit intomasterfrom
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Pull Request Overview
This PR removes the inference of insufficient LAPACK from libRlapack usage by commenting out or removing all code related to the ARMA_CRIPPLED_LAPACK flag. The change is based on the assumption that R's internal libRlapack library is now complete for RcppArmadillo's purposes, including for complex variables.
- Removes
ARMA_CRIPPLED_LAPACKconfiguration from header template - Comments out LAPACK detection logic in configure scripts
- Eliminates the AC_SUBST substitution for ARMA_LAPACK
Reviewed Changes
Copilot reviewed 3 out of 3 changed files in this pull request and generated 2 comments.
| File | Description |
|---|---|
| inst/include/RcppArmadillo/config/RcppArmadilloConfigGenerated.h.in | Removes the ARMA_CRIPPLED_LAPACK conditional compilation block |
| configure.ac | Comments out the arma_lapack variable assignments and AC_SUBST call |
| configure | Comments out the generated configure script logic for LAPACK detection |
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Closes #481
We no longer pass down whether R uses its internal
libRlapacklibrary. This library uses to be insufficient, hence the need for a flag but should now be complete for our purposes, including for complex variables.