_NETBSD_SOURCE as this makes cross building from older/newer versions of
NetBSD harder, not easier (and also makes the resulting tools 'different')
Wrap all required code with the inclusion of nbtool_config.h, attempt to
only use POSIX code in all places (or when reasonable test w. configure and
provide definitions: ala u_int, etc).
Reviewed by lukem. Tested on FreeBSD 4.9, Redhat Linux ES3, NetBSD 1.6.2 x86
NetBSD current (x86 and amd64) and Solaris 9.
Fixes PR's: PR#17762 PR#25944
- add a new INTPTR_IS_LONG define and use it.
- XXX: the PTRDIFF, SIZEOF, INTPTR defines really make lint more relaxed
in some platforms than others. We should really be looking for the
particular tokens to enable this kind of checking. I.e.
now:
char *p;
int foo = (int)p;
does not produce a warning on INTPTR_IS_LONG == 0 platformas.
In reality it should only elide the warning if:
char *p;
int foo = (intptr_t)p;
but it is not that smart (yet).
