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Modules/Find{BLAS,LAPACK}: allow choice of pkg-config package

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The BLA_PREFER_PKGCONFIG switch is not that useful if you are not able
to specify the pkg-config package to use. This adds BLA_PKGCONFIG_BLAS
and BLA_PKGCONFIG_LAPACK to that effect, allowing user choice in
environments that install differing variants of the BLAS libraries
with distinct .pc file names.

This is part of work to get more standardized installations of the
BLAS libs with specific names, likely blas.pc and lapack.pc only
for Netlib reference code, or maybe blas-netlib.pc and lapack-netlib.pc,
in any case distinct from choices like openblas-openmp.pc.
This commit is contained in:
Dr. Thomas Orgis
2022-06-15 00:41:06 +02:00
parent ca8a5b05de
commit 70f15d202f
2 changed files with 21 additions and 2 deletions
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11
Modules/FindBLAS.cmake
View File

@@ -35,6 +35,12 @@ The following variables may be set to influence this module's behavior:
if set ``pkg-config`` will be used to search for a BLAS library first
and if one is found that is preferred
``BLA_PKGCONFIG_BLAS``
.. versionadded:: 3.25
If set, the ``pkg-config`` method will look for this module name instead of
just ``blas``.
``BLA_SIZEOF_INTEGER``
.. versionadded:: 3.22
@@ -273,8 +279,11 @@ endif()
include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake)
if(BLA_PREFER_PKGCONFIG)
if(NOT BLA_PKGCONFIG_BLAS)
set(BLA_PKGCONFIG_BLAS "blas")
endif()
find_package(PkgConfig QUIET)
pkg_check_modules(PKGC_BLAS QUIET blas)
pkg_check_modules(PKGC_BLAS QUIET ${BLA_PKGCONFIG_BLAS})
if(PKGC_BLAS_FOUND)
set(BLAS_FOUND ${PKGC_BLAS_FOUND})
set(BLAS_LIBRARIES "${PKGC_BLAS_LINK_LIBRARIES}")

12
Modules/FindLAPACK.cmake
View File

@@ -35,6 +35,13 @@ The following variables may be set to influence this module's behavior:
if set ``pkg-config`` will be used to search for a LAPACK library first
and if one is found that is preferred
``BLA_PKGCONFIG_LAPACK``
.. versionadded:: 3.25
If set, the ``pkg-config`` method will look for this module name instead of
just ``lapack``.
``BLA_SIZEOF_INTEGER``
.. versionadded:: 3.22
@@ -278,8 +285,11 @@ endif()
# Search with pkg-config if specified
if(BLA_PREFER_PKGCONFIG)
if(NOT BLA_PKGCONFIG_LAPACK)
set(BLA_PKGCONFIG_LAPACK "lapack")
endif()
find_package(PkgConfig QUIET)
pkg_check_modules(PKGC_LAPACK QUIET lapack)
pkg_check_modules(PKGC_LAPACK QUIET ${BLA_PKGCONFIG_LAPACK})
if(PKGC_LAPACK_FOUND)
set(LAPACK_FOUND TRUE)
set(LAPACK_LIBRARIES "${PKGC_LAPACK_LINK_LIBRARIES}")