Spurious rebuild of Versions.v.i

[Daniel Jacobowitz]

I'm seeing a really strange build failure.  It's too intermittent for me to
reproduce with debugging.  Something causes Versions.v.i to be rebuild
during processing of a subdir; unfortunately, it happens during resolv. 
This is during make -C resolv others.  Resolv sets CPPFLAGS to include
-Dgethostbyname=res_gethostbyname.  These CPPFLAGS get used to rebuild
Versions.v.i, and then - lo - libc.map gets rebuilt, libc.so gets relinked,
and libc doesn't export gethostbyname any more.

I can't figure out what's causing the rebuild.  Any ideas?  Should resolv
use a different trick than changing CPPFLAGS?

-- 
Daniel Jacobowitz
MontaVista Software                         Debian GNU/Linux Developer