Fix shared library build with sqlite

Dependency to threading lib is required (It is already provided for
static SimGear).

CMakeLists.txt

@@ -189,6 +189,9 @@ if (SYSTEM_SQLITE)
     message(STATUS "Using system SQLite3 library")
 endif (SYSTEM_SQLITE)
 
+# Sqlite always depends on the threading lib
+list(APPEND SQLITE3_LIBRARY ${CMAKE_THREAD_LIBS_INIT})
+
 find_package(PLIB REQUIRED puaux pu js fnt)
 
 # FlightGear and SimGear versions need to match

src/Main/CMakeLists.txt

@@ -92,13 +92,13 @@ include_directories(${PROJECT_SOURCE_DIR}/src/Canvas/ShivaVG/include)
 add_definitions(-DVG_API_EXPORT)
 
 target_link_libraries(fgfs
+	${SQLITE3_LIBRARY}
 	${SIMGEAR_LIBRARIES}
 	${OPENSCENEGRAPH_LIBRARIES}
 	${OPENGL_LIBRARIES}
 	${PLIB_LIBRARIES}
 	${JPEG_LIBRARY}
 	${HLA_LIBRARIES}
-    ${SQLITE3_LIBRARY}
 	${EVENT_INPUT_LIBRARIES}
 	${SIMGEAR_CORE_LIBRARY_DEPENDENCIES}
 	${SIMGEAR_SCENE_LIBRARY_DEPENDENCIES}