clib2 Code

This commit was manufactured by cvs2svn to create tag 'V1_193'.

- Header files don't belong into the list of object files...

- Added an error/EOF check in the input drain loop.

- Integrated Peter Bengtsson's termios code. Thank you very much! I chose
to add it to libunix.a rather than keeping it in a separate libtermios.a
library.

- The scanf() family now supports character ranges for the %[
conversion. Note that this is a non-standard feature!

- Added more casts for the powf() function parameters.

- Made ACrypt() compile again.

- Updated the smakefile, so that it includes the new math object files.

- Replaced the (float) casts in strtof() with calls to powf().

- Ported acosh(), acoshf(), asinh(), asinhf(), lgamma(), lgammaf(),
remainder() and remainderf() for C99.