Improve LDF C/C++ Preprocessor for conditional syntax // Issue #837

platformio/managers/platform.py

@@ -477,7 +477,7 @@ class PlatformBase(PlatformPackagesMixin, PlatformRunMixin):
             }
         if "tool-scons" not in self.packages:
             self.packages['tool-scons'] = {
-                "version": "~3.20401.1",
+                "version": "~3.20401.2",
                 "optional": False
             }