cmake HAVE__WCSERROR_S examples

CTSRD-CHERI/cheribsd contrib/libpcap/CMakeLists.txt :732 

check_function_exists(_wcserror_s HAVE__WCSERROR_S)

asset-group/5ghoul-5g-nr-attacks libs/libpcap/CMakeLists.txt :441 

check_function_exists(_wcserror_s HAVE__WCSERROR_S)