Fix multiple definition errors when using library header in two different files (#40)

maxgerhardt · web-flow · commit ff673e9deba5 · 2023-04-19T13:21:59.000+02:00
diff --git a/src/Arduino_PortentaBreakout.cpp b/src/Arduino_PortentaBreakout.cpp
@@ -0,0 +1,3 @@
+#include "Arduino_PortentaBreakout.h"
+
+BreakoutCarrierClass Breakout;
diff --git a/src/Arduino_PortentaBreakout.h b/src/Arduino_PortentaBreakout.h
@@ -268,6 +268,6 @@ class BreakoutCarrierClass {
     }
 };
 
-BreakoutCarrierClass Breakout;
+extern BreakoutCarrierClass Breakout;
 
 #endif // ARDUINO_PORTENTA_BREAKOUT_H

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,3 @@`
	`1`	`+#include "Arduino_PortentaBreakout.h"`
	`2`	`+`
	`3`	`+BreakoutCarrierClass Breakout;`
Original file line number	Diff line number	Diff line change
`@@ -268,6 +268,6 @@ class BreakoutCarrierClass {`
`268`	`268`	`}`
`269`	`269`	`};`
`270`	`270`
`271`		`-BreakoutCarrierClass Breakout;`
	`271`	`+extern BreakoutCarrierClass Breakout;`
`272`	`272`
`273`	`273`	`#endif // ARDUINO_PORTENTA_BREAKOUT_H`