This is a live mirror of the Perl 5 development currently hosted at https://github.com/perl/perl5
* HAS_ISBLANK
* HAS_LOCALTIME64
* HAS_IP_MREQ
+ * HAS_IP_MREQ_SOURCE
* HAS_IPV6_MREQ
+ * HAS_IPV6_MREQ_SOURCE
* HAS_MKTIME64
* HAS_PRCTL
* HAS_PSEUDOFORK