[MacPorts] LAPACK is not found when building with Clang

[barracuda156]

This commit breaks clang builds on macOS. With gcc still works.

[barracuda156]

UPD. Hmm, reverting it made no change, it is still broken. Need to look into this.

UPD2. I do not delete initial message, but it is not that commit, but something else, possibly in Macports itself. But at the moment still a mystery why it now fails. It worked fine for months.

Currently build fails on CI like this:

  -- Found Gperftools: /opt/local/lib/libtcmalloc.dylib;/opt/local/lib/libprofiler.dylib  found components: tcmalloc profiler 
  CMake Warning at /opt/local/share/cmake-3.24/Modules/FindBoost.cmake:1384 (message):
    New Boost version may have incorrect or missing dependencies and imported
    targets
  Call Stack (most recent call first):
    /opt/local/share/cmake-3.24/Modules/FindBoost.cmake:1507 (_Boost_COMPONENT_DEPENDENCIES)
    /opt/local/share/cmake-3.24/Modules/FindBoost.cmake:2118 (_Boost_MISSING_DEPENDENCIES)
    external/boost.cmake:3 (find_package)
    CMakeLists.txt:641 (include)
  
  
  -- Found Boost: /opt/local/libexec/boost/1.81/include (found suitable version "1.81.0", minimum required is "1.4") found components: math_tr1 
  -- Looking for sgemm_
  -- Looking for sgemm_ - not found
  -- Looking for sgemm_
  -- Looking for sgemm_ - not found
  -- Looking for sgemm_
  -- Looking for sgemm_ - not found
  -- Looking for sgemm
  -- Looking for sgemm - not found
  -- Looking for sgemm
  -- Looking for sgemm - not found
  -- Looking for sgemm
  -- Looking for sgemm - not found
  -- Looking for sgemm__
  -- Looking for sgemm__ - not found
  -- Looking for sgemm__
  -- Looking for sgemm__ - not found
  -- Looking for sgemm__
  -- Looking for sgemm__ - not found
  -- Looking for SGEMM
  -- Looking for SGEMM - not found
  -- Looking for SGEMM
  -- Looking for SGEMM - not found
  -- Looking for SGEMM
  -- Looking for SGEMM - not found
  -- Looking for SGEMM_
  -- Looking for SGEMM_ - not found
  -- Looking for SGEMM_
  -- Looking for SGEMM_ - not found
  -- Looking for SGEMM_
  -- Looking for SGEMM_ - not found
  CMake Error at external/lapack.cmake:83 (message):
    Unable to link against BLAS function.  Specify the BLAS library in
    LAPACK_LIBRARIES.
  Call Stack (most recent call first):
    CMakeLists.txt:643 (include)
  
  
  -- Configuring incomplete, errors occurred!

[evaleev]

would you please post the entire configuration command (and metadata, if any, like cmake preset file), configuration log + CMake{Output,Error}.txt? thanks.

[barracuda156]

@evaleev Thank you for responding. Our config: https://github.com/macports/macports-ports/blob/master/science/madness/Portfile (it was working perfectly until very recent, still works with gcc on PowerPC, but now fails on Intel and Apple Silicon).

Logs from Sonoma:
CMakeConfigureLog.txt
main.txt

[DanielO]

I think this is due to libopenblas having /opt/local/lib/libgcc listed twice as an RPATH.
I guess this would have to be fixed in the openblas build, or you can pass -Wl,-ld_classic to the link.

[barracuda156]

@DanielO I think the linker issue was addressed for OpenBLAS on our end and that did not help here, but I will check that.
As a solution to fix the build I switched madness to use Accelerate on new systems – which cannot be used across the board due to this being broken:
#458