sys/stdarg.h and expect compiler to provide proper builtins, defaulting
to the GCC interface. lint still has a special fallback.
Reduce abuse of _BSD_VA_LIST_ by defining __va_list by default and
derive va_list as required by standards.
in libsa printf(3). Disabled by default but enabled by
-DLIBSA_PRINTF_LONGLONG_SUPPORT and -DLIBSA_PRINTF_WIDTH_SUPPORT.
Provided by tnozaki@ for my libsa debugging. Thanks!
XXX: ptrdiff_t is only ever defined in <stddef.h> and is defined
unconditionally, without the ifndef dance. Until we have an expert
opinion, abuse intptr_t for the 't' size check.
Make sure that each va_start has one and only one matching va_end,
especially in error cases.
If the va_list is used multiple times, do multiple va_starts/va_ends.
If a function gets va_list as argument, don't let it use va_end (since
it's the callers responsibility).
Improved by comments from enami and christos -- thanks!
Heimdal/krb4/KAME changes already fed back, rest to follow.
Inspired by, but not not based on, OpenBSD.
joerg