Make changes equivalent to those originally made by commits
bd56626a (Fixes for the OSF operating system build, 2010-09-08)
92c082b1 (Add a fix for the inline keyword on the osf os, 2010-09-10)
but based on the updated libarchive snapshot.
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.