Check the [backend intergration](https://nim-lang.org/docs/backends.html) page
in the manual. It's much easier doing the opposite IMO (Nim calling C/C++) and
you generally do not need CMake for this as you can tell Nim where to link and
what headers to use in your Nim code. Depends on what you're wrapping.
I'd do something like this if using cmake:
add_custom_command(
OUTPUT "${NIM_EXE_PATH}"
COMMAND "${NIMBLE}" c --out:"${NIM_EXE_PATH}" "${NIM_PROJECT}"
DEPENDS "${NIM_PROJECT}"
WORKING_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}"
)
add_custom_target(
nimbuild
DEPENDS "${NIM_EXE_PATH}"
COMMENT "Building Nim project"
)
add_executable(project IMPORTED GLOBAL)
set_target_properties(project PROPERTIES IMPORTED_LOCATION
"${NIM_EXE_PATH}")
add_dependencies(project nimbuild)
Run
A lot was omitted for this example but you would also pass your C/C++ target's
headers, libs, defines to the nim compiler, which you can do via cmake
generator expressions.
