installing libtool 1.4

[Antonio Inojal]

Hello, I am trying to install libtool 1.4. My current version is 1.3.4. 
When I am compiling libtool I get an error with which I have been 
battling for a long time without success and which I hope you can help 
me. The error is as follows:

/bin/sh ./libtool --mode=link gcc  -g -O2  -o libltdl.la -rpath 
/usr/local/lib -no-undefined -version-info 3:0:0 ltdl.lo
rm -fr .libs/libltdl.la .libs/libltdl.* .libs/libltdl.*
gcc -dynamiclib  -o .libs/libltdl.3.0.0.dylib  ltdl.lo  -lc 
-install_name  /usr/local/lib/libltdl.3.dylib -compatibility_version 4 
-current_version 4.0
libtool: unrecognized option `-arch_only'
Try `libtool --help' for more information.
gnumake[1]: *** [libltdl.la] Error 1
gnumake: *** [all-recursive] Error 1

The actual error is stated in the line that reads: unrecognized option 
'-arch_only'. I included the previous lines in case they would be of any 
help. What I want to know is what is arch_only. There is a version above 
1.3.4 which is 1.3.5. Maybe that version contains some files which are 
needed by 1.4 and above versions. But in compiling 1.3.5 I still get a 
couple of other issues. If you know the cause of this please let me 
know. Thank You very much for your time. I appreciate it.
Tony