[BUG] Parsing U8glib-HAL.h may fail under specific conditions

[Maoweicao]

I am using Marlin 2.0.9.10 with PlatformIO 6.1.15 to compile firmware for an ESP32 board (MagicMaker Sparrow).
I found that U8glib-HAL.h may fail to parse in espcom.cpp under specific circumstances, even if the dependency already exists.

Original code:

#if HAS_MARLINUI_U8GLIB
  #include <U8glib-HAL.h>
#endif

After modifying to the following code, the compilation error disappears and the firmware works normally:

#if HAS_MARLINUI_U8GLIB
  #if __has_include (<U8glib-HAL.h>)
    #include <U8glib-HAL.h>
  #endif
#endif

[github-actions]

Thank your for submiting, please be sure you followed template or your issue may be dismissed.

[luc-github]

what version of ESP3DLIB are you using ?

can you share the error message :

I found that U8glib-HAL.h may fail to parse in espcom.cpp under specific circumstances, even if the dependency already exists.

because it is weird - what do you mean by : under specific circumstances, ?