Header multiple include protection should match the filename, not just _ARDUINO_H, which is almost bound to go wrong some day.
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@ -3,8 +3,8 @@
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why double up on these macros? see http://gcc.gnu.org/onlinedocs/cpp/Stringification.html
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*/
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#ifndef _ARDUINO_H
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#define _ARDUINO_H
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#ifndef _FASTIO_ARDUINO_H
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#define _FASTIO_ARDUINO_H
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#include <avr/io.h>
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@ -2579,4 +2579,4 @@ pins
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#error pins for this chip not defined in arduino.h! If you write an appropriate pin definition and have this firmware work on your chip, please submit a pull request
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#endif
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#endif /* _ARDUINO_H */
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#endif /* _FASTIO_ARDUINO_H */
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