16768 kernel printf should know about %j and %z size specifiers

16768 kernel printf should know about %j and %z size specifiers

cmn_err() supports 'h' and 'hh'

cmn_err() supports 'h' and 'hh'

libstdc++ must use thread-local errno

Convert unsupported use of -msave-args to a warning

-G should imply the same specs as -shared

Always pass --32 to GNU AS backend unless -m64 was specified

At present, gcc calls GNU as with --32 iff gcc was called with -m32, and it
calls GNU as with --64 iff gcc itself was called with -m64.

This works fine assuming that GNU as works in 32-bit mode by default but not
otherwise.

This patch causes GNU as to be called with --64 if -m64 was passed to gcc
and to be called with --32 if -m64 was NOT passed to gcc.

Since the illumos gcc44 build outputs 32-bit by default, this causes the
backend assembler to be called with the correct options.

GCC 8.4.0 release

This tag marks the last Subversion commit before the move to Git.