How to link my static library to my c++ project CMake?

Question

I'm using CLion with CMake. I have my own static library "libxxx.a". I'm trying to link it this way in CMakeLists.txt: target_link_libraries(myProject ./lib/libxxx.a) And this way I'm including library to my main.cpp. #include "xxx.h". But I have error fatal error: xxx.h: No such file or directory. What should I do?

Unrelated to your problem, but if the library is built as part of your project, don't use the library name but the *target* name instead. — Some programmer dude, Oct 14 '17 at 12:17
That is your problem. Unless they are in system header paths you will need to add include_directories() for the headers for your library. — drescherjm, Oct 14 '17 at 12:29
@KyryloOnufriiev Have a look at this question. https://stackoverflow.com/questions/924485/whats-the-difference-between-a-header-file-and-a-library It may help you understand what the problem is. — Cinder Biscuits, Oct 14 '17 at 12:37

score 2 · Answer 1 · answered Nov 15 '17 at 08:34

CMake include a prebuilt static library

As a sketch you need your project to look something like this

project( myProject )

set( SOURCE_FILES main.cpp )

add_library( myLibrary STATIC IMPORTED )
set_property( TARGET myLibrary PROPERTY IMPORTED_LOCATION /path/to/lib/libxxx.a )
include_directories( /path/to/headers/ )

add_executable( myProject ${SOURCE_FILES} )
target_link_libraries( myProject myLibrary )

You might be able to replace include_directories with:

set_property( TARGET myLibrary PROPERTY INCLUDE_DIRECTORIES /path/to/headers/ )

A better way to go is to compile the static library from source and then use

target_include_directories( myLibrary PUBLIC /path/to/headers/ )

And then they get handled automatically.

How to link my static library to my c++ project CMake?

1 Answers1

CMake include a prebuilt static library