clib2 Code

- Broke down the tests for the __TIMEVAL_ALREADY_DEFINED and DEVICES_TIMER_H
symbols into two lines.

- <stdarg.h> now tries to use the compiler supplied, machine specific
<stdarg.h> file and also includes the OS4-specifc <sys/amigaos-va.h>
file, if necessary.

- Added another test to <sys/time.h> to check if the "timeval" definition is
already in place. If it is, <exec/types.h> will not be included.

- Replaced the rint() and rintf() functions with the fdlibm code.

c.lib 1.174 (27.8.2004)

- The parameters of atan2() were swapped. Fixed.

- Merged fdlibm 5.3 changes with __kernel_tan(), __exp() and __pow()
functions.

This commit was manufactured by cvs2svn to create tag 'V1_173'.

c.lib 1.173 (25.8.2004)

- The <assert.h> header file was missing the C++ 'extern "C" { .. }'
declarations.

- Added a new function __get_default_file() which allows direct access
to the low level file handle/socket descriptor associated with a
file descriptor.

- Removed the USE_64_BIT_INTS definition from the GCC-68k makefile.
Apparently, the 64 bit integer math still doesn't work right in the
plain 68k libgcc.a.

This commit was manufactured by cvs2svn to create tag 'V1_172'.

c.lib 1.172 (21.8.2004)

- acos() now returns 0 for a domain error.

- asin() now returns 0 for a domain error.

- atan2() now returns 0 for a domain error.

- fmod() now returns x if y == 0 and sets a
domain error.

- sqrt() now returns 0 for a domain error.

- Added NaN and +Inf constants to the math library
initialization code which could come in handy later.

This commit was manufactured by cvs2svn to create tag 'V1_171'.