if (!IsSet("CONFIG_POSIX_REGEX") && !IsSet("CONFIG_PCRE")) {
Set("CONFIG_POSIX_REGEX" => 1);
Warn "BSD regex library on Darwin isn't compatible, using POSIX regex.\n";
if (!IsSet("CONFIG_POSIX_REGEX") && !IsSet("CONFIG_PCRE")) {
Set("CONFIG_POSIX_REGEX" => 1);
Warn "BSD regex library on Darwin isn't compatible, using POSIX regex.\n";