fixed undefined reference to _write on Teensy 3.6 (#388) (#389)

* fixed undefined reference to _write on Teensy 3.6

* added Teeny 3.6 on supported boards

(cherry picked from commit da05e6b)

Co-authored-by: Juan Miguel Jimeno <[email protected]>

Author: mergify[bot]

README.md

@@ -14,6 +14,7 @@ Supported boards are:
 | [Teensy 4.1](https://www.pjrc.com/store/teensy41.html)                              | v1.8.5      | Supported  | [Based on Teensyduino](https://www.pjrc.com/teensy/td_download.html)                                | `colcon.meta`            |
 | [Teensy 3.2/3.1](https://www.pjrc.com/store/teensy32.html)                          | v1.8.5      | Supported  | [Based on Teensyduino](https://www.pjrc.com/teensy/td_download.html)                                | `colcon_lowmem.meta`     |
 | [Teensy 3.5](https://www.pjrc.com/store/teensy35.html)                              | v1.8.5      | Not tested | [Based on Teensyduino](https://www.pjrc.com/teensy/td_download.html)                                | `colcon_lowmem.meta`     |
+| [Teensy 3.6](https://www.pjrc.com/store/teensy36.html)                              | v1.8.5      | Supported  | [Based on Teensyduino](https://www.pjrc.com/teensy/td_download.html)                                | `colcon_lowmem.meta`     |
 
 Community contributed boards are:
 

src/default_transport.cpp

@@ -64,7 +64,7 @@ extern "C"
 // ---- Build fixes -----
 
 // TODO: This should be fixed
-#if defined(ARDUINO_TEENSY32) || defined(ARDUINO_TEENSY35)
+#if defined(ARDUINO_TEENSY32) || defined(ARDUINO_TEENSY35) || defined(ARDUINO_TEENSY36)
 
 extern "C" void _write(){
 }