I am trying to compile this software in the MSYS2 environment on Windows. This is the line looking for the packages:

FIND_PACKAGE(BLAS REQUIRED)
FIND_PACKAGE(LAPACK REQUIRED)
SET(CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} ${BLAS_LIBRARIES} ${LAPACK_LIBRARIES})

I have installed the BLAS/LAPACK dependencies using

pacman -S make msys/cmake msys/gcc-fortran mingw64/mingw-w64-x86_64-openblas64

but I get the error messages:

CMake Error at /usr/share/cmake-3.22.1/Modules/FindPackageHandleStandardArgs.cmake:230 (message):
  Could NOT find BLAS (missing: BLAS_LIBRARIES)
Call Stack (most recent call first):
  /usr/share/cmake-3.22.1/Modules/FindPackageHandleStandardArgs.cmake:594 (_FPHSA_FAILURE_MESSAGE)
  /usr/share/cmake-3.22.1/Modules/FindBLAS.cmake:1337 (find_package_handle_standard_args)
  CMakeLists.txt:403 (FIND_PACKAGE)

You may find the modified CMakeLists.txt file here (I have commented out all the MPI, MMG, MKL, and APPLE-related entries), and the complete output can be seen here.

I can probably specify the locations explicitly as described here and here

SET(BLAS_LIBRARIES /c/tools/msys64/mingw64/lib/libopenblas_64.a)
SET(LAPACK_LIBRARIES /c/tools/msys64/mingw64/lib/libopenblas_64.a)

but I want CMake to find these dependencies automatically. I would appreciate it if you could help me know what is the canonical way to get BLAS/LAPACK libraries installed under MSYS2 and get CMAKE to find them automatically with the FIND_PACKAGE() functions or otherwise.