Fixed unit test usage of visibility macros

src/modules/systemlib/err.h

@@ -1,6 +1,6 @@
 /****************************************************************************
  *
- *   Copyright (C) 2012 PX4 Development Team. All rights reserved.
+ *   Copyright (c) 2012-2015 PX4 Development Team. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
@@ -66,6 +66,7 @@
 #define _SYSTEMLIB_ERR_H
 
 #include <stdarg.h>
+#include "visibility.h"
 
 __BEGIN_DECLS
 

unittests/CMakeLists.txt

@@ -23,8 +23,11 @@ include_directories(${CMAKE_SOURCE_DIR})
 include_directories(${PX_SRC})
 include_directories(${PX_SRC}/modules)
 include_directories(${PX_SRC}/lib)
+include_directories(${PX_SRC}/drivers)
 
 add_definitions(-D__EXPORT=)
+add_definitions(-DERROR=-1)
+add_definitions(-DOK=0)
 
 # check
 add_custom_target(unittests COMMAND ${CMAKE_CTEST_COMMAND} --output-on-failure)

unittests/sbus2_test.cpp

@@ -11,7 +11,7 @@
 #include "gtest/gtest.h"
 
 TEST(SBUS2Test, SBUS2) {
-	char *filepath = "testdata/sbus2_r7008SB.txt";
+	const char *filepath = "testdata/sbus2_r7008SB.txt";
 
 	FILE *fp;
 	fp = fopen(filepath,"rt");