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我在/ usr/lib文件夹中有一个libmosquittopp.so。 mosquittopp.h位于/ usr/include文件夹内。链接到cmake中的.so库
我喜欢链接到我的项目到那个库。
所以我的CMakeLists.txt文件
cmake_minimum_required(VERSION 2.6)
PROJECT(MosquittoTest)
# The version number.
set (VERSION_MAJOR 1)
set (VERSION_MINOR 0)
include_directories("${PROJECT_BINARY_DIR}")
# Linked libariries
#For MQTT
#location of raspicam's cmake file is /usr/src/raspicam-0.1.3/build
link_directories(/usr/lib)
target_link_libraries (MosquittoTest mosquittopp)
ADD_EXECUTABLE(MosquittoTest MosquittoTest.cpp)
# add the install targets
install (TARGETS MosquittoTest DESTINATION bin)
install (FILES MosquittoInterface.h DESTINATION include)
但是，当我在ccmake GUI配置，我有错误的
Cannot specify link ibraries for target MosquittoTest which is not built by this project.
什么是错我的cmake？