Re: [PATCH v5 0/1] MR7642: server: Use dlsym() to check for epoll_pwait2 at run-time.

[Jinoh Kang (＠iamahuman)]

dlsym(2) doesn't work for this purpose. On older kernels, the function *will* exist (when bundled with newer glibc) but calling it will return errno=ENOSYS.

Please use ENOSYS instead.