# Bug report ### Bug description: Popped up during the build on macOS ``` ./Modules/_ctypes/cfield.c:49:12: warning: unused function 'round_down' [-Wunused-function] Py_ssize_t round_down(Py_ssize_t numToRound, Py_ssize_t multiple) ^ ./Modules/_ctypes/cfield.c:59:12: warning: unused function 'round_up' [-Wunused-function] Py_ssize_t round_up(Py_ssize_t numToRound, Py_ssize_t multiple) ^ ./Modules/_ctypes/cfield.c:409:12: warning: unused function 'BUILD_SIZE' [-Wunused-function] Py_ssize_t BUILD_SIZE(Py_ssize_t bitsize, Py_ssize_t offset) { ^ ``` ### CPython versions tested on: CPython main branch ### Operating systems tested on: macOS <!-- gh-linked-prs --> ### Linked PRs * gh-124123 <!-- /gh-linked-prs -->