[SOLVED] CMake: Source file depends on source file

Issue

I am embedding a source file into another source file using inline assembly and .incbin, which is just like I want it. I will not accept the standard objcopy method, which while works is (imho) the lesser method. xxd is also an option, but really only for very small includes. I have a static site builder that takes a lot of resources and packs it into a single program, which is very quick with .incbin.

Unfortunately, adding the JS file to the list of sources is not enough:

ninja explain: output CMakeFiles/jsapp.dir/static_site.c.o older than most recent input static_site.c (1629797306094133842 vs 1629797311521966739)
ninja explain: CMakeFiles/jsapp.dir/static_site.c.o is dirty
ninja explain: jsapp is dirty
[2/2] Linking C executable jsapp

The main C file that embeds the JS is not being rebuilt, but the static site source which is unrelated here is because the timestamp changed.

How can I tell CMake that source.c now depends on some_file.js?

Solution

As per @arrowd 's idea:

set_source_files_properties(main.c OBJECT_DEPENDS
    ${CMAKE_SOURCE_DIR}/my.js
)

Worked beautifully.

Answered By - gonzo

Answer Checked By - Cary Denson (WPSolving Admin)