feat: homogeinized cmakelists w backend_cpu

CMakeLists.txt

@@ -62,8 +62,16 @@ target_include_directories(${module_name}
 
 # PYTHON BINDING
 if (PYBIND)
+    # Handles Python + pybind11 headers dependencies
     include(PybindModuleCreation)
-    generate_python_binding()
+    generate_python_binding(${CMAKE_PROJECT_NAME} ${module_name})
+
+    target_link_libraries(${module_name}
+        PUBLIC
+            pybind11::pybind11
+        PRIVATE
+            Python::Module
+        )
 endif()
 
 target_compile_features(${module_name} PRIVATE cxx_std_14)
@@ -133,6 +141,9 @@ export(EXPORT ${project}-targets
 ##############################################
 ## Add test
 if(TEST)
+    if(PYBIND)
+        message(FATAL_ERROR "PYBIND and TEST are both enabled. But cannot compile with catch_2.\nChoose between pybind and Catch2 for compilation.")
+    endif()
     enable_testing()
     add_subdirectory(unit_tests)
 endif()

cmake/PybindModuleCreation.cmake

-macro(generate_python_binding )
+function(generate_python_binding pybind_module_name target_to_bind) 
     add_definitions(-DPYBIND)
     Include(FetchContent)
 
-    # Use the New FindPython mode, recommanded. Requires CMake 3.15+
-    find_package(Python 3.7.0
-                    COMPONENTS Interpreter Development.Module 
-                    REQUIRED)
-    set(PYBIND11_FINDPYTHON ON)
     set(PYBIND_VERSION v2.10.4)
+    set(PYBIND11_FINDPYTHON ON)
     message(STATUS "Retrieving pybind ${PYBIND_VERSION} from git")
+
     FetchContent_Declare(
-    PyBind11
-    GIT_REPOSITORY https://github.com/pybind/pybind11.git
-    GIT_TAG        ${PYBIND_VERSION} # or a later release
+        PyBind11
+        GIT_REPOSITORY https://github.com/pybind/pybind11.git
+        GIT_TAG        ${PYBIND_VERSION} # or a later release
     )
+
+    # Use the New FindPython mode, recommanded. Requires CMake 3.15+
+    find_package(Python COMPONENTS Interpreter Development.Module)
     FetchContent_MakeAvailable(PyBind11)
-    
-    message(STATUS "Creating binding for module ${project}")
+
+    message(STATUS "Creating binding for module ${pybind_module_name}")
     file(GLOB_RECURSE pybind_src_files "python_binding/*.cpp")
 
-    pybind11_add_module(${project} MODULE ${pybind_src_files} "NO_EXTRAS") # NO EXTRA required for pip install
-    target_include_directories(${project} PUBLIC "python_binding" ${pybind11_INCLUDE_DIRECTORIES})
-    # Handles Python + pybind11 headers dependencies
-    target_link_libraries(${module_name}
-        PRIVATE
-            Python::Module 
-        PUBLIC
-            pybind11::pybind11
-        )
-    target_link_libraries(${project} PUBLIC ${module_name})
-endmacro()
+    pybind11_add_module(${pybind_module_name} MODULE ${pybind_src_files} "NO_EXTRAS") # NO EXTRA recquired for pip install
+    target_include_directories(${pybind_module_name} PUBLIC "python_binding")
+    target_link_libraries(${pybind_module_name} PUBLIC ${target_to_bind})
+endfunction()