> When compiling elogd on AMD64 (in 64 bit mode) there are many 
> warnings like these:
> 
> src/regex.c:3769: warning: cast from pointer to integer of different size
> src/regex.c:3769: warning: cast from pointer to integer of different size
> src/regex.c:3775: warning: cast to pointer from integer of different size
> 
> The reason is the (int) cast, which (I think) is not necessary.

Unfortunately I don't have a 64-bit compiler to try. Can you please check if
elogd.c has similar warnings or only regex.c? The ones in elogd.c I can fix,
but regex.c is straight from the GNU C library, so we would have to wait intil
they fix it. Or can you get it from the 64-bit C library? The point is that I
need the source code, so that I can compile it under Windows as well. Can you
try to compile elogd without regex.c, like 

gcc -g -O -W -Wall -o elogd src/elogd.c

If that works fine, we don't have to compile regex.c under linux. But I guess
it's still needed fot Solaris and other non-GNU Unix brands.