cmake Getting started with cmake "Hello World" as a library
Example
This example shows how to deploy the "Hello World" program as a library and how to link it with other targets.
Say we have the same set of source/header files as in the http://www.riptutorial.com/cmake/example/22391/-hello-world--with-multiple-source-files example. Instead of building from multiple source files, we can first deploy foo.cpp as a library by using add_library() and afterwards linking it with the main program with target_link_libraries().
We modify CMakeLists.txt to
cmake_minimum_required(VERSION 2.4)
project(hello_world)
include_directories(${PROJECT_SOURCE_DIR})
add_library(applib foo.cpp)
add_executable(app main.cpp)
target_link_libraries(app applib)
and following the same steps, we'll get the same result.
