mend

Author: Levente Orban

tools/build.py

@@ -120,7 +120,7 @@ def generate_build_options(arguments):
     build_options.append('-DFEATURE_PROFILE=%s' % PROFILE)
 
     build_options.append('-DFEATURE_DEBUGGER=%s' % arguments.jerry_debugger)
-    build_options.append('-DFEATURE_DEBUGGER_PORT=%s' % arguments.jerry_debugger_port)
+    build_options.append('-DFEATURE_DEBUGGER_PORT=%d' % arguments.jerry_debugger_port)
     build_options.append('-DFEATURE_SNAPSHOT_EXEC=%s' % arguments.snapshot_exec)
     build_options.append('-DFEATURE_SNAPSHOT_SAVE=%s' % arguments.snapshot_save)
     build_options.append('-DFEATURE_SYSTEM_ALLOCATOR=%s' % arguments.system_allocator)