dependency of magic.h

[Masanobu SAITOH <msaitoh%execsw.org@localhost>]

 Hi.

 While doing "./build.sh -j16 distribution", I got "unterminated ifdef"
error in magic.h(src/external/bsd/file/lib). When I got this compile error,
I checked the file and the #ifdef...#endif was consistent. It seems the
compiler saw unfinished magic.h. Have you ever seen this error before?

 src/external/bsd/file/lib/Makefile has "${ALLOBJS}: magic.h".
I'm not familiar with Makefile, but I suspect it should be replaced with
"DPSRCS+=magic.h".

 Right?

 It's hard to reproduce the problem, so I can't verify the change works
or not...

--
-----------------------------------------------
                SAITOH Masanobu (msaitoh%execsw.org@localhost
                                 msaitoh%netbsd.org@localhost)