Modiffied compilation prompting to alling with linker's way of printing - now each issue will be printed in separate line with simple prefix like [DEBUG] Output:

workspace_tools/toolchains/__init__.py

@@ -649,8 +649,12 @@ class mbedToolchain:
         return bin
 
     def default_cmd(self, command):
-        self.debug("Command: %s"% ' '.join(command))
         _stdout, _stderr, _rc = run_cmd(command)
+        # Print all warning / erros from stderr to console output
+        for error_line in _stderr.splitlines():
+            print error_line
+
+        self.debug("Command: %s"% ' '.join(command))
         self.debug("Return: %s"% _rc)
 
         for output_line in _stdout.splitlines():