Add a _REENT_ERRNO() macro to encapsulate the access to the
_errno member of struct reent. This will help to replace the
structure member with a thread-local storage object in a follow
up patch.
Replace uses of __errno_r() with _REENT_ERRNO(). Keep __errno_r() macro for
potential users outside of Newlib.
* Makefile.am: Move cmath stuff into libc/sys/linux.
* Makefile.in: Regenerated.
* configure.host: Default -DMB_CAPABLE for x86-linux.
* libc/include/reent.h: Define _sbrk to take signed int argument.
* libc/include/sys/unistd.h: Ditto for _sbrk_r and sbrk.
* libc/locale/locale.c[MB_CAPABLE]: Add LC_MESSAGES support and
make locale name checking more efficient. Also allow "C-ISO-8859-1"
locale for LC_CTYPE and LC_MESSAGES.
* libc/reent/sbrkr.c: Change prototype to take ptrdiff_t.
* libc/sys/linux/brk.c: Change sbrk prototype.
* libc/sys/linux/include/time.h: Remove Cygwin stuff and
include <sys/features.h>.
(CLOCK_THREAD_CPUTIME): Renamed to CLOCK_THREAD_CPUTIME_ID.
(CLOCK_PROCESS_CPUTIME): Renamed to CLOCK_PROCESS_CPUTIME_ID.
* libc/sys/linux/sys/cdefs.h: Replace with glibc sys/cdefs.h
with a few local additions.
* libc/sys/linux/sys/features.h: New file.
* libc/sys/linux/sys/unistd.h: Change _sbrk_r and sbrk prototypes
to take signed argument.
* libc/syscalls/syssbrk.c: Change sbrk, _sbrk_r, and _sbrk
prototypes to take signed size argument.
Allow building internal stubs for non-reentrant syscalls
if target provides its own malloc
* libc/reent/reent.c (errno): Move definition here.
* libc/reent/sbrkr.c: From here.
Matt Joyce
Yaakov Selkowitz
Corinna Vinschen
Jeff Johnston
Christopher Faylor