Add generic versions of machine/int_*.h for compilers providing
appropiate macros for all necessary types.

put the contents of these header files around #ifdef __x86_64__, and
#include the <i386/foo.h> in the #else clause, making these files
largely bit-size independant.

Remove clause 3 and 4 from TNF licenses

merge ktrace-lwp.

Change {u,}int_fast{8,16}_t to 32-bit types.

Note: While this is technically an ABI change I believe it is a
change that we can afford at this time (and to be pulled up to
2.0, which will be the fir

Change {u,}int_fast{8,16}_t to 32-bit types.

Note: While this is technically an ABI change I believe it is a
change that we can afford at this time (and to be pulled up to
2.0, which will be the first release for amd64). The types are
not widely used yet, and a survey of pkgsrc has not shown uses
that would be adversely affected by it.

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Update a few types and formats.

Rename the x86_64 port to amd64, as this is the actual name used for
the processor family now. x86_64 is kept as the MACHINE_ARCH value,
since it's already widely used (by e.g. the toolchain, etc), a

Rename the x86_64 port to amd64, as this is the actual name used for
the processor family now. x86_64 is kept as the MACHINE_ARCH value,
since it's already widely used (by e.g. the toolchain, etc), and
by other operating systems.

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