rra-c-util 7.0

This is my collection of utility libraries and support code for (mostly) C software.

The major version bump is due a backwards-incompatible change: dropping the SA_LEN macro from portable/socket.h, including all the Autoconf machinery to probe for it. This macro came from INN's old portability code when porting to IPv6, but INN turned out to not really need it and it's never caught on. It was causing some warnings with GCC 7 that would otherwise have been hard to fix, so it was time for it to go.

There are a couple of other changes to function signatures that shouldn't matter for backward compatibility: network_sockaddr_sprint now takes a socklen_t for better type compatibility with other networking functions, and bail_krb5 and diag_krb5 in the TAP add-ons take a long as the error code argument so that they can take either a krb5_error_code or a kadm5_ret_t.

The remaining changes are all about enabling more warnings. rra-c-util now builds with intensive warnings enabled in both GCC 7 and Clang, and the warning options have been refreshed against GCC 7. It also reports clean from the Clang static analyzer, which included changing reallocarray and the vector implementations to always allocate memory of at least the minimum size.

You can get the latest version from the rra-c-util distribution page.