CMake Error at CMakeLists.txt:367 (message):
BLAS++ requires a BLAS library and none was found. Ensure that it is
accessible in environment variables $CPATH, $LIBRARY_PATH, and
$LD_LIBRARY_PATH.
I believe CPATH is a Gnu extension. Package discovery in Cmake is done through CMAKE_MODULE_PATH or (as in the case of MKL) PGK_CONFIG_PATH.
Could you add support for the latter?