Third party libraries in CMake

Question

I am using cmake for my project, but I have another library in a subdirectory ( say lib/ ) which uses a plain Makefile. How do I instruct CMake to run the Makefile in lib as part of the build process?

Answer 1

If your /lib contains its own CMakeLists.txt, just use the add_subdirectory command:

add_subdirectory(/path/of/your/lib/that/contains/CMakeLists.txt)

Else

you have to use exec_program command:

exec_program(script.sh)

where script.sh is

#!/bin/sh
cd /path/of/your/lib/ && make

do not forget

chmod +x script.sh

In my opinion, the first solution is better !!!

Answer 2

The solution is to use:

execute_process ( COMMAND make WORKING_DIRECTORY ${project_SOURCE_DIR}/path/to/lib )