[GRASS-git] [OSGeo/grass] d5bb44: lib/gmath: use C interface to BLAS and LAPACK libr...

[Nicklas Larsson]

  Branch: refs/heads/main
  Home:   https://github.com/OSGeo/grass
  Commit: d5bb442d7b121861928a37842e05e5265a980427
      https://github.com/OSGeo/grass/commit/d5bb442d7b121861928a37842e05e5265a980427
  Author: Nicklas Larsson <n_larsson at yahoo.com>
  Date:   2024-09-19 (Thu, 19 Sep 2024)

  Changed paths:
    M .github/workflows/apt.txt
    M .github/workflows/macos_dependencies.txt
    M .github/workflows/macos_install.sh
    M .github/workflows/osgeo4w.yml
    M configure
    M configure.ac
    R include/grass/blas.h
    M include/grass/config.h.in
    M include/grass/la.h
    R include/grass/lapack.h
    M lib/gmath/ATLAS_wrapper_blas_level_1.c
    M lib/gmath/Makefile
    M lib/gmath/la.c
    M mswindows/osgeo4w/build_osgeo4w.sh

  Log Message:
  -----------
  lib/gmath: use C interface to BLAS and LAPACK libraries (#4247)

Replace outdated direct use of Fortran libraries via g2c.h,  f2c.h
or private prototypes, with the C interface API and libraries
CBLAS and LAPACKE. This simplifies our own code and makes
it easier to maintain and expand.

Configure is simplified to use pkg-config to retrieve INC and
LIB info. `--with-blas` defaults to `--with-blas=cblas` where "cblas"
is the pkg-config package name; `---with-lapack` defaults to
`--with-lapack=lapacke`.

If the default fails the test a list of package names are tested:
- BLAS package names tested: cblas blas-netlib openblas blas-atlas
- LAPACKE package name tested: lapacke openblas

- CI(Linux): replace libopenblas-dev with liblapacke-dev dependency
- CI(macOS): replace blas and lapack with openblas dependency
- CI(Windows): replace lapack with openblas dependency



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