Fixing 'libreplace is empty' warnings

[Dalibor Topic]

Hi all,

I've got a libreplace with replacement functions that's empty on some 
platforms (Darwin). Is there some simple way to teach automake not to 
build it (and link against it), when it's not needed?

this question has been asked before 
http://mail.gnu.org/archive/html/automake/2003-08/msg00028.html but 
received no reply. the warnings look like this:

/bin/sh ../libtool --mode=link gcc  -g -O2 -Wall -Wstrict-prototypes 
-fsigned-char   -o libreplace.la   dummyin6.lo getaddrinfo.lo 
getifaddrs.lo inet_pton.lo inet_ntop.lo memset.lo
ar cru .libs/libreplace.a .libs/dummyin6.o .libs/getaddrinfo.o 
.libs/getifaddrs.o .libs/inet_pton.o .libs/inet_ntop.o .libs/memset.o
ranlib .libs/libreplace.a
ranlib: warning for library: .libs/libreplace.a the table of contents 
is empty (no object file members in the library define global symbols)
creating libreplace.la
(cd .libs && rm -f libreplace.la && ln -s ../libreplace.la  libreplace.la)

any help would be appreciated.

cheers,
dalibor topic