clib2 Code

- Dropped the special flag variable used by the abort() function that
tracks whether or not console output is possible. We now use the
global "__no_standard_io" instead.

- Removed a misplaced IsInteractive() from the stdio initialization
function. Now this could have been big trouble...

- Removed tests for FileHandle->fh_Type != NULL which used to precede
all IsInterative() tests. I verified that IsInteractive() will always
return FALSE for NIL: type file handles.

- The "char" limits in <limits.h> are now set up according to the current
compiler settings, which can either default to an unsigned or
signed definition.

- Changed the rules again for the use of stderr/stdout redirection when
printing error messages. It is always safe to redirect them now and
no requester will appear unless you specifically set the value of the
"__no_standard_io" variable to TRUE in your program.

- Redirecting stderr to a file no longer has the effect of showing error
messages and assertion failure notifications as requesters. The exception
is in redirecting stderr to NIL: which will prompt the requester use.

- gettimeofday() now calls GetSysTime() rather than DateStamp() to obtain
the current system time. This resolves granularity issues since the
DateStamp() result was only accurate by 1/50 of a second.

- The "ptrdiff_t" definition in <stddef.h> now defaults to type 'int' rather
than 'long int'.

This commit was manufactured by cvs2svn to create tag 'V1_185'.

- Updated the copyright information.

- fwrite() now flushes the entire "buffer" for unbuffered files. The
exception are "interactive" files such as console windows. For these
line buffered output is used.

- Whether or not a file is bound to an interactive device, such as a
console window, is now checked and remembered after a file descriptor
has been associated with it.

- The data structure alignment (file I/O buffer) is now configurable
at compile time. The default used to be 16 bytes, which is appropriate
for the 68040/68060 but not for the PowerPC, which uses 32 or 128
bytes per cache line.

- Changed the definition of alloca() for GCC, which now defaults
to the built-in function.

- Updated the stdio.h, stdlib.h, string.h and unistd.h header files
to declare function prototypes for the __MEM_DEBUG versions of the
library functions only if that preprocessor symbol is defined.

- If a SIGINT signal is caught and processed by the default signal
handler, the localized "*** BREAK" string will be printed rather
than the built-in one.

- Tried to make it possible to have debug versions of the memory
management code in the default link library along with the
normal versions. Let's see how well this works out in the GCC
version. SAS/C does not seem to like it...