Restore Windows 64-bit lseek removed by upstream svn revision 3826
(Cast away __la_lseek(), use _lseeki64() instead, 2011-11-21). We
need it on Borland.
Some versions of Borland provide <stdint.h>, so we use it when possible.
However, the 64-bit signed and unsigned integer min/max constants cause
overflow warnings from Borland itself! For these constants we fall back
on our default definitions.
This allows for a built in bzip and zip capability, so external tools
will not be needed for these packagers. The cmake -E tar xf should be
able to handle all compression types now as well.
Brad King
Bill Hoffman