Fixed resolve_sketch_headers to actually return headers

Fixed small function argument-stripping bug

Author: MrPointer

cmake/Platform/Sketches/SketchHeadersResolver.cmake

@@ -8,6 +8,13 @@
 function(resolve_sketch_headers _target_name _sketch_file _return_var)
 
     get_target_include_directories(${_target_name} target_include_dirs)
-    get_source_headers("${_sketch_file}" ${target_include_dirs} sketch_headers RECURSIVE)
+
+    get_source_headers("${_sketch_file}" "${target_include_dirs}" sketch_headers RECURSIVE)
+    get_source_headers("${ARDUINO_CMAKE_PLATFORM_HEADER_PATH}" "${target_include_dirs}" platform_headers RECURSIVE)
+
+    list(APPEND sketch_headers ${platform_headers})
+    list(REMOVE_DUPLICATES sketch_headers)
+
+    set(${_return_var} ${sketch_headers} PARENT_SCOPE)
 
 endfunction()

cmake/Platform/Sources/FunctionSignatureStripper.cmake

@@ -8,13 +8,17 @@ function(_get_function_arguments_types _signature _return_var)
 
     string(REGEX MATCH ${ARDUINO_CMAKE_FUNCTION_ARGS_REGEX_PATTERN} function_args_string "${_signature}")
     string(REGEX MATCHALL ${ARDUINO_CMAKE_FUNCTION_SINGLE_ARG_REGEX_PATTERN}
-            function_arg_list "${_function_args_string}")
-
+            function_arg_list "${function_args_string}")
     # Iterate through all arguments to extract only their type
     foreach (arg ${function_arg_list})
+
         string(REGEX MATCH ${ARDUINO_CMAKE_FUNCTION_ARG_TYPE_REGEX_PATTERN} arg_type "${arg}")
         string(STRIP "${arg_type}" arg_type) # Strip remaining whitespaces
-        list(APPEND function_args ${arg_type})
+
+        if (NOT "${arg_type}" STREQUAL "void") # Do NOT append 'void' arguments - they're meaningless
+            list(APPEND function_args ${arg_type})
+        endif ()
+
     endforeach ()
 
     set(${_return_var} ${function_args} PARENT_SCOPE)

cmake/Platform/Sources/HeaderRetriever.cmake

@@ -15,15 +15,15 @@ function(get_header_file _header_we _dir_list _return_var)
         find_header_files("${include_dir}" include_dir_headers RECURSE)
 
         foreach (included_header ${include_dir_headers})
-            get_name_without_file_extension(${included_header} included_header_we)
+            get_name_without_file_extension("${included_header}" included_header_we)
             if ("${included_header_we}" STREQUAL "${_header_we}")
-                set(_return_var ${included_header} PARENT_SCOPE)
+                set(${_return_var} ${included_header} PARENT_SCOPE)
                 return()
             endif ()
         endforeach ()
 
     endforeach ()
 
-    set(_return_var NOTFOUND PARENT_SCOPE)
+    set(${_return_var} "NOTFOUND" PARENT_SCOPE)
 
 endfunction()