1.6 Include Arduino.h differs if global int was used

[NicoHood]

Its a very weird bug. Feel free to edit the name of the issue, I had no better idea.

The Arduino include definition works after a global int was placed in the sketch. it does not work if it is above. If i force the include it works. Simply try the following code and comment the integer:

//#include "Arduino.h"

#ifdef Arduino_h
#error
#endif

int nowincludingbewlo = 2;

#ifdef Arduino_h
#error
#endif

void setup() {
  // put your setup code here, to run once:

}

void loop() {
  // put your main code here, to run repeatedly:

}

Can anyone explain me why this happens, so I can at least continuing developing without being afraid that the next bugfix will break my stuff? This confused me a lot and also caused my sketch to now work anymore for some reason. Using new 1.6 with Windows.

[ffissore]

I think this is a dup of #1518

[NicoHood]

Wow. that bug is old. Why dont you (or anyone else) fix it? That really kills a lot of stuff and confuses a lot. I spent an hour to find out that my problem wasnt caused by me.

Any chance to get a fix now?

[ffissore]

I confirm this is a preprocessor related issue and it's being tracked in several preprocessor related bugs: https://github.com/arduino/Arduino/issues?q=is%3Aopen+is%3Aissue+label%3A%22Component%3A+Preprocessor%22

Please try one of these builds
http://arduino.cc/download.php?f=/arduino-preproc-linux32.tar.xz
http://arduino.cc/download.php?f=/arduino-preproc-linux64.tar.xz
http://arduino.cc/download.php?f=/arduino-preproc-windows.zip
http://arduino.cc/download.php?f=/arduino-preproc-macosx.zip
http://arduino.cc/download.php?f=/arduino-preproc-macosx-java-latest.zip

[ffissore]

New preprocessor tracked at #2636. Builds for testing it are available

[NicoHood]

Build options changed, rebuilding all

processing.app.debug.RunnerException
    at processing.app.debug.Compiler.compile(Compiler.java:352)
    at processing.app.debug.Compiler.build(Compiler.java:98)
    at processing.app.Sketch.build(Sketch.java:1159)
    at processing.app.Sketch.build(Sketch.java:1134)
    at processing.app.Editor$BuildHandler.run(Editor.java:1936)
    at java.lang.Thread.run(Unknown Source)
Caused by: processing.app.helpers.PreferencesMapException: pattern
    at processing.app.helpers.PreferencesMap.getOrExcept(PreferencesMap.java:255)
    at processing.app.preproc.IncludesFinder.preprocess(IncludesFinder.java:43)
    at processing.app.debug.Compiler.compile(Compiler.java:350)
    ... 5 more

When I try to compile it with my own hid core. Just pasted in my sketch above.

Didnt test that further. Just compile it for an external sketchbook core and it will crash.

[ffissore]

Fixed by #3779