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Updated Compatibility issues (markdown)

Benoît Blanchon
2016-08-23 15:54:01 +02:00
parent 2257fcd199
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Compatibility-issues.md

@@ -152,4 +152,17 @@ They are located here on Windows:
```
%LOCALAPPDATA%\Arduino15\packages\arduino\hardware\samd\1.6.6\cores\arduino\USB
```
```
## GCC warning: ignoring packed attribute because of unpacked non-POD field
If you pass the flag `--fpack-struct` to the compiler, it will generate the following warning:
```
warning: ignoring packed attribute because of unpacked non-POD field
```
No solution has been found so far: you need to remove that flag if you want to get rid of that warning.
See issue [#255](https://github.com/bblanchon/ArduinoJson/issues/255)