Cross build failure in netbsd-5 branch

[Juraj Hercek <nbsd%hck.sk@localhost>]

Hi,

I've experienced following build failure in netbsd-5 branch while 
building tools on linux host:

...
--- dependall-gencat ---
/os/netbsd-5/tools/gencat/../../usr.bin/gencat/gencat.c:120: error: 
conflicting types for 'getline'
/usr/include/stdio.h:653: error: previous declaration of 'getline' was here
/os/netbsd-5/tools/gencat/../../usr.bin/gencat/gencat.c:120: error: 
conflicting types for 'getline'
/usr/include/stdio.h:653: error: previous declaration of 'getline' was here
*** [gencat.lo] Error code 1
1 error

nbmake: stopped in /os/netbsd-5/tools/gencat
*** [dependall] Error code 2
1 error
...

Any idea how to fix that?

-- Juraj