Including in another CMake build system project via ExternalProject

[whatnick]

I am planning to include fast_obj in another Mesh data translator library (i3s-lib)as an example of mesh-format with LoD packed as a single file via CMake ExternalProject mechanism. Placing the header in the executable source's include path via this mechanism should work.

Has this been done previously for other projects ? Are there samples around ?

Please see : Esri/i3s-lib#6

[thisistherk]

Not something I've ever used, don't see why it wouldn't work though. I tend to just drop the header in whatever I'm using then check it in with the rest of the source rather than keep it separate. The fast_obj CMake file is just for building the test app so won't be much use to you - don't know if that makes it more difficult.

[whatnick]

I have CMake automatically cloning this repo. Will look at adding the path to the header in the spot the cloned stuff sits in build directory and we should be good.

[deccer]

I use FetchContent like so

FetchContent_Declare(
    fast_obj
    GIT_REPOSITORY https://github.com/thisistherk/fast_obj.git
    GIT_TAG        master
    GIT_SHALLOW    TRUE
    GIT_PROGRESS   TRUE
)
FetchContent_MakeAvailable(fast_obj)

# in my project
target_link_libraries(MyProject
...
    PRIVATE fast_obj
...
)