Unused function warnings during mimalloc build on NetBSD

[furkanonder]

Bug description:

gcc -pthread -c -fno-strict-overflow -Wsign-compare -g -Og -Wall -O2 -fstack-protector-strong -Wtrampolines -std=c11 -Wextra -Wno-unused-parameter -Wno-missing-field-initializers -Wstrict-prototypes -Werror=implicit-function-declaration -fvisibility=hidden -I./Include/internal -I./Include/internal/mimalloc -I. -I./Include -DPy_BUILD_CORE -o Objects/setobject.o Objects/setobject.c
--- Objects/obmalloc.o ---
In file included from Objects/mimalloc/prim/prim.c:22,
 from Objects/mimalloc/static.c:37,
 from Objects/obmalloc.c:22:
Objects/mimalloc/prim/unix/prim.c:76:12: warning: 'mi_prim_access' defined but not used [-Wunused-function]
 76 | static int mi_prim_access(const char *fpath, int mode){
 | ^~~~~~~~~~~~~~
Objects/mimalloc/prim/unix/prim.c:73:12: warning: 'mi_prim_close' defined but not used [-Wunused-function]
 73 | static int mi_prim_close(int fd){
 | ^~~~~~~~~~~~~
Objects/mimalloc/prim/unix/prim.c:70:16: warning: 'mi_prim_read' defined but not used [-Wunused-function]
 70 | static ssize_t mi_prim_read(int fd, void* buf, size_t bufsize){
 | ^~~~~~~~~~~~
Objects/mimalloc/prim/unix/prim.c:67:12: warning: 'mi_prim_open' defined but not used [-Wunused-function]
 67 | static int mi_prim_open(const char* fpath, int open_flags){
 | ^~~~~~~~~~~~

OS: NetBSD 10.0 amd64

CPython versions tested on:

CPython main branch

Operating systems tested on:

Other

Linked PRs

• gh-123826: Fix Unused Static Warnings in Objects/mimalloc/prim/unix/prim.c #123827
• [3.13] gh-123826: Fix unused function warnings in mimalloc on NetBSD (GH-123827) #123875