Append Core (IDF) after the user libraries when linking a firmware

Author: ivankravets

tools/platformio-build.py

@@ -48,7 +48,7 @@
  "-Wno-error=unused-function",
  "-Wno-unused-parameter",
  "-Wno-sign-compare",
-#  "-fstack-protector"
+ "-fstack-protector"
  ],
 
  CPPPATH=[
@@ -173,7 +173,7 @@ def _get_board_flash_mode(env):
  join(FRAMEWORK_DIR, "cores", env.BoardConfig().get("build.core"))
 ))
 
-env.Prepend(LIBS=libs)
+env.Append(LIBS=libs)
 
 #
 # Generate partition table