[Buildroot] proftpd does not compile

[Micha Nelissen]

Hi,

I am using revision 23387, and proftpd does not compile for me. It 
complains about redeclared mode_t in usr/include/asm/types.h vs 
usr/include/sys/types.h in staging_dir.

If I comment the build_i686/proftpd-1.3.1/config.h file:
#define umode_t mode_t

(to /* ... */)

then the compile is fine. Further some warnings about bcopy also, I guess:

#undef HAVE_BCOPY
should be
#define HAVE_BCOPY 1

Obviously this is not a correct patch, but not sure about correct one? 
Kernel headers broken? configure script broken? toolchain headers?

Please advise, thanks.

Micha