Apparently a recent round of vandalism by the C++ standards committee
includes disallowing the standard and historic type name "unsigned". Add
a gratuitous "int" to recent changes.

C++ is really a blight on the world.

u_char, u_int, u_long -> unsigned char, unsigned, unsigned long

This makes these headers work without _NETBSD_SOURCE.

branches: 1.21.10;
Remove clause 3 and 4 from TNF licenses

branches: 1.20.24;
de-__P -- the hack is long since useless. Discussed with christos,
matt, kleink, others. Approved by christos.

Fix two typos

Const poisoning of dladdr (so that things build after the dlfcn.h change)

Move the link.h files for the different shlib formats via repository copy,
and rename them to match the executable format. Introduce a new link.h
file which automatically picks the correct header based on the target of
the toolchain.

Pull in <a.out.h>.

Add AUX_LABEL (need for VAX JSB/JMP "jmp" slots).

Assign my copyrights to TNF.

Need <dlfcn.h> for Dl_info.

Add `dladdr()' rtld entry point.

Catch up with const changes to dlopen() and dlsym() prototypes in
<dlfcn.h>. Tested on i386 and hp300 for crt0.o and ld.so, verified
other references by inspection.

Define LD_HINTS_VERSION_2:
- no longer hash on minor version number in hints file.
- add list of ldconfig(8) search directories.

branches: 1.9.2;
Define `dlexit()' in crt<=>rtld interface (active in v4).

Put dlopen() et.al. declarations in separate header file for compatibility.

Revive library search paths.

Put a reserved field into use (weak symbol support).

new RCS ID format.

Enable dl*() prototypes.

Redone from scratch, but maintain SunOS compatibility.

Some definitions for the `ld.so.hints' file.

Moved <link.h> here from usr.bin/ld as it is needed by other modules
and utilities (eg. crt0, libc, nm).