cmake HAVE_SETRESUID examples

shadowsocks/shadowsocks-libev cmake/configure.cmake :61

check_function_exists(setresuid HAVE_SETRESUID)

xrootd/xrootd cmake/XRootDSystemCheck.cmake :24

check_function_exists( setresuid HAVE_SETRESUID )

ShadowsocksR-Live/shadowsocksr-native cmake/configure.cmake :103

check_function_exists ( setresuid HAVE_SETRESUID )