./configure: line 19871: test: =: unary operator expected

[Jim Salter]

After checking out the tip of the ccvs tree, I run the command on RedHat 
Enterprise Linux EL 3

 ./configure --without-krb4 --without-gssapi --enable-rootcommit 
--disable-client --disable-server

and I get a syntax error from configure, but the configure *appears to* 
complete:

   Configuring checked out code
   ...
   checking for working getline function... yes
   checking for getlogin_r... (cached) yes
   ./configure: line 19871: test: =: unary operator expected
   checking getopt.h usability... yes
   checking getopt.h presence... yes

This equates to the code at the following line(s):

 19867   case $LIBOBJS in
 19868     "$ac_func.$ac_objext"   | \
 19869   *" $ac_func.$ac_objext"   | \
 19870     "$ac_func.$ac_objext "* | \
 19871   *" $ac_func.$ac_objext "* ) ;;
 19872   *) LIBOBJS="$LIBOBJS $ac_func.$ac_objext" ;;