From b4e987dc893808d126909b4e950c8175411ec36b Mon Sep 17 00:00:00 2001
From: "Christopher D. McMurrough" <cmcmurrough@users.noreply.github.com>
Date: Sun, 17 Dec 2017 16:37:18 -0600
Subject: [PATCH] Added extern definition to jetsonGPIO.h

This will allow you to link jetsonGPIO.h / jetsonGPIO.c into a C++ program with CMake
---
 jetsonGPIO.h | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/jetsonGPIO.h b/jetsonGPIO.h
index 6091120..8885c54 100644
--- a/jetsonGPIO.h
+++ b/jetsonGPIO.h
@@ -42,7 +42,11 @@
  /****************************************************************
  * Constants
  ****************************************************************/
- 
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+	
 #define SYSFS_GPIO_DIR "/sys/class/gpio"
 #define POLL_TIMEOUT (3 * 1000) /* 3 seconds */
 #define MAX_BUF 64
@@ -96,6 +100,8 @@ int gpioOpen ( jetsonGPIO gpio ) ;
 int gpioClose ( int fileDescriptor ) ;
 int gpioActiveLow ( jetsonGPIO gpio, unsigned int value ) ;
 
-
+#ifdef __cplusplus
+}
+#endif
 
 #endif // JETSONGPIO_H_