Tweaks to build system

Source/CarlaServer/CMakeLists.txt

@@ -3,6 +3,7 @@ project (CarlaServer)
 
 if (UNIX)
   set(CMAKE_CXX_COMPILER clang++)
+  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fPIC")
   find_package(Threads)
 endif (UNIX)
 

Source/CarlaServer/Makefile

@@ -16,6 +16,7 @@ $(PROTOBUF_SRC_DIR)/%.pb.cc: $(PROTOBUF_SRC_DIR)/%.proto
 	protoc -I=$(PROTOBUF_SRC_DIR) --cpp_out=$(PROTOBUF_SRC_DIR) $<
 
 clean:
+	rm -f $(PROTOBUF_SRC_DIR)/carla_protocol.pb.*
 	rm -Rf build CMakeFiles
 
 clean-all: clean

Source/CarlaServer/source/carla/server/CMakeLists.txt

@@ -5,4 +5,4 @@ file(GLOB carla_server_SRC
     "*.pb.cc"
 )
 
-add_library(carla_server ../CarlaServer.cpp ${carla_server_SRC})
+add_library(carla_server STATIC ../CarlaServer.cpp ${carla_server_SRC})