Make configuration file compatible with Python3 and newer hdf5

CMakeLists.txt

@@ -1,6 +1,5 @@
 cmake_minimum_required(VERSION 3.6)
 set(CMAKE_CXX_STANDARD 11)
-cmake_policy(SET CMP0012 OLD)
 list(INSERT CMAKE_MODULE_PATH 0 "${CMAKE_CURRENT_SOURCE_DIR}")
 
 project(CosmoToolbox)
@@ -54,7 +53,7 @@ IF(YORICK_SUPPORT)
   ENDIF((EXISTS ${NETCDFCPP_INCLUDE_PATH}/netcdf AND ${NETCDFCPP_LIBRARY} MATCHES "netcdf_c\\+\\+4") OR (INTERNAL_NETCDF))
 ENDIF(YORICK_SUPPORT)
 
-find_program(CYTHON cython)
+find_program(CYTHON cython3 cython)
 find_library(ZLIB z)
 find_library(DL_LIBRARY dl)
 find_library(MATH_LIBRARY m)

FindPyLibs.cmake

@@ -1,10 +1,12 @@
 execute_process(COMMAND "${PYTHON_EXECUTABLE}" "-c"
-    "import distutils.sysconfig as cs;  import os; v=cs.get_config_vars(); print(os.path.join(v['LIBDIR'],v['LDLIBRARY']));"
+	"import distutils.sysconfig as cs; import os; import sys; v=cs.get_config_vars(); print(os.path.join(v['LIBDIR'],v['LDLIBRARY'])); sys.exit(0)"
     RESULT_VARIABLE _PYLIB_SEARCH_SUCCESS
     OUTPUT_VARIABLE _PYLIB_VALUES_OUTPUT
     ERROR_VARIABLE _PYLIB_ERROR_VALUE
     OUTPUT_STRIP_TRAILING_WHITESPACE)
 
+message(${_PYLIB_SEARCH_SUCCESS})
+
 execute_process(COMMAND "${PYTHON_EXECUTABLE}" "-c"
     "import distutils.sysconfig as cs;  import os; v=cs.get_config_vars(); print(v['INCLUDEPY']);"
     RESULT_VARIABLE _PYINC_SEARCH_SUCCESS

external/external_build.cmake

@@ -112,7 +112,12 @@ else (INTERNAL_HDF5)
     cmessage(STATUS "HDF5 lib: ${HDF5_LIBRARIES}")
     cmessage(STATUS "HDF5 includes: ${HDF5_INCLUDE_DIRS}")
     cmessage(STATUS "HDF5 C lib: ${HDF5_C_LIBRARY}")
-    get_filename_component(HDF5_BIN_DIR ${HDF5_C_LIBRARY} DIRECTORY)
+    cmessage(STATUS "HDF5 BIN: ${HDF5_BIN_DIR}")
+    foreach(hdf5lib IN LISTS HDF5_LIBRARIES)
+      if (${hdf5lib} MATCHES "(hdf5)|(HDF5)")
+        get_filename_component(HDF5_BIN_DIR ${hdf5lib} DIRECTORY)
+      endif()
+    endforeach()
     cmessage(STATUS "HDF5 libpath: ${HDF5_BIN_DIR}")
   else()
     cmessage(STATUS "Found HDF5 cmake config.")