by the application, all NetBSD interfaces are made visible, even
if some other feature-test macro (like _POSIX_C_SOURCE) is defined.
<sys/featuretest.h> defined _NETBSD_SOURCE if none of _ANSI_SOURCE,
_POSIX_C_SOURCE and _XOPEN_SOURCE is defined, so as to preserve
existing behaviour.
This has two major advantages:
+ Programs that require non-POSIX facilities but define _POSIX_C_SOURCE
can trivially be overruled by putting -D_NETBSD_SOURCE in their CFLAGS.
+ It makes most of the #ifs simpler, in that they're all now ORs of the
various macros, rather than having checks for (!defined(_ANSI_SOURCE) ||
!defined(_POSIX_C_SOURCE) || !defined(_XOPEN_SOURCE)) all over the place.
I've tried not to change the semantics of the headers in any case where
_NETBSD_SOURCE wasn't defined, but there were some places where the
current semantics were clearly mad, and retaining them was harder than
correcting them. In particular, I've mostly normalised things so that
_ANSI_SOURCE gets you the smallest set of stuff, then _POSIX_C_SOURCE,
_XOPEN_SOURCE and _NETBSD_SOURCE in that order.
Tested by building for vax, encouraged by thorpej, and uncontested in
tech-userlevel for a week.
portability guide issue 6, adjust headers to expose the function
prototypes with appropriate _POSIX_C_SOURCE/_XOPEN_SOURCE defines
fixes standards/21136 by MAEKAWA Masahide
as __null with egcs 1.0 (GCC 2.90) and above. As several headers are affected
by this change, move the definition into a new header file, <null.h>, to ease
maintenance.
(as originally declared in System V) to "char * const []", as was done in
1003.2 and subsequently propagated into XPG4.
From Andrew Cagney in PR lib/8930.
const char *const *, and rename them to __sys_siglist14 and __sys_signame14.
This will prevent the size of the exported symbol from changing when more
signals are added to the list.
* Remove mknod() prototype; it's located in <sys/stat.h> (XPG4.2).
* Remove re_comp() and re_exec() prototypes; their location is <re_comp.h>
(XPG4.2).
* Move setkey() prototype to <stdlib.h> (XPG4).
* Move mkstemp(), mktemp(), ttyslot() and valloc() prototypes to <stdlib.h>
(XPG4.2).
Assign copyright to TNF.
sethostname(), setdomainname() from int to size_t. The former change was
made due to an X/Open XNS5 requirement, the latter three were made for
consistency.
readlink() from type `int' to type `size_t'. This isn't an ABI change, since
the calling convention of our only LP64 platform (the Alpha) already promotes
this argument to a `long'.
This may not be the final action on this matter; readlink() still returns
an `int', which may change in a future revision of the standard.
_POSIX_SOURCE or _XOPEN_SOURCE at compile time, use __RENAME() to call
__posix_chown(), __posix_fchown(), __posix_lchown() and __posix_rename()
instead of their NetBSD counterparts in order to remove the requirement of
linking against libposix.
