Problem trying to make install emacs 21.3 on Linux.

[Adam]

I just downloaded and unpacked emacs-21.3.tar.gz and leim-21.3.tar.gz. OK 
through "./configure --prefix=/usr", "make" and "su". But "make install" 
fails with the following:

Installing utilities for users to run.
for file in etags ctags emacsclient b2m ebrowse ; do /usr/bin/install -c  
${file} =/usr/bin/${file} ; chmod a+rx =/usr/bin/${file}; done
/usr/bin/install: cannot create regular file `=/usr/bin/etags': No such 
file or directory
chmod: failed to get attributes of `=/usr/bin/etags': No such file or 
directory
/usr/bin/install: cannot create regular file `=/usr/bin/ctags': No such 
file or directory
chmod: failed to get attributes of `=/usr/bin/ctags': No such file or 
directory
/usr/bin/install: cannot create regular file `=/usr/bin/emacsclient': No 
such file or directory
chmod: failed to get attributes of `=/usr/bin/emacsclient': No such file 
or directory
/usr/bin/install: cannot create regular file `=/usr/bin/b2m': No such file 
or directory
chmod: failed to get attributes of `=/usr/bin/b2m': No such file or 
directory
/usr/bin/install: cannot create regular file `=/usr/bin/ebrowse': No such 
file or directory
chmod: failed to get attributes of `=/usr/bin/ebrowse': No such file or 
directory
make[1]: *** [install] Error 1
make[1]: Leaving directory `/var/scratch/emacs-21.3/lib-src'
make: *** [install-arch-dep] Error 2

although all the relevant files are present in ./lib-src! Any suggestions?
(I'm running Mandrake 8.2 if it matters.)