[MacPorts] #68689: CMake no longer finds OpenBLAS

[MacPorts]

#68689: CMake no longer finds OpenBLAS
------------------------------+--------------------
  Reporter:  szhorvat         |      Owner:  (none)
      Type:  defect           |     Status:  new
  Priority:  Normal           |  Milestone:
 Component:  ports            |    Version:
Resolution:                   |   Keywords:
      Port:  openblas, cmake  |
------------------------------+--------------------
Description changed by szhorvat:

Old description:

> CMake is no longer finding OpenBLAS and I am not sure why.
>
> I am using:
>
> {{{
> OpenBLAS @0.3.24 (math, science)
> cmake @3.24.4 (devel)
> }}}
>
> Fully updated ports tree, no local modifications.
>
> Test CMake project:
>
> ```
> cmake_minimum_required(VERSION 3.24)
> project(Foo)
> find_package(BLAS REQUIRED)
> message(STATUS BLAS found: ${BLAS_LIBRARIES})
> ```
>
> Configure it with `cmake -DBLA_VENDOR=OpenBLAS
> -DCMAKE_PREFIX_PATH=/opt/local`.  Then it shows the error `Could NOT find
> BLAS (missing: BLAS_LIBRARIES)`
>
> This used to work not so long ago. I am not sure when it broke. It also
> affects building ports that link to OpenBLAS.
>
> My system:
>
> macOS 13.6 22G120 arm64
> Xcode 15.0.1 15A507

New description:

 CMake is no longer finding OpenBLAS and I am not sure why.

 I am using:

 {{{
 OpenBLAS @0.3.24 (math, science)
 cmake @3.24.4 (devel)
 }}}

 Fully updated ports tree, no local modifications.

 Test CMake project:

 {{{
 cmake_minimum_required(VERSION 3.24)
 project(Foo)
 find_package(BLAS REQUIRED)
 message(STATUS BLAS found: ${BLAS_LIBRARIES})
 }}}

 Configure it with `cmake -DBLA_VENDOR=OpenBLAS
 -DCMAKE_PREFIX_PATH=/opt/local`.  Then it shows the error `Could NOT find
 BLAS (missing: BLAS_LIBRARIES)`

 This used to work not so long ago. I am not sure when it broke. It also
 affects building ports that link to OpenBLAS.

 My system:

 macOS 13.6 22G120 arm64
 Xcode 15.0.1 15A507

--

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Ticket URL: <https://trac.macports.org/ticket/68689#comment:1>
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