CMake integration

add_subdirectory

If you vendor unumber in your repository:

add_subdirectory(external/unumber)
target_link_libraries(your_target PRIVATE unumber gmp gmpxx)

FetchContent

include(FetchContent)

FetchContent_Declare(
  unumber
  GIT_REPOSITORY https://github.com/Usub-development/unumber.git
  GIT_TAG main
)
FetchContent_MakeAvailable(unumber)

target_link_libraries(your_target PRIVATE unumber gmp gmpxx)

Notes:

• Linking to gmpxx often pulls gmp automatically, but keep both if your toolchain requires it.
• If you use find_package(GMP REQUIRED), link whatever targets your find-module exports.