The binaries directory
(ftp://ftp.xemacs.org/pub/xemacs/binaries/) 
holds executables for XEmacs 21.1.  The binaries are mostly in the form:
 
xemacs-$VERSION-$ARCHITECTURE-$VENDOR-$OS-$FEATURE.tar.gz

On Linux, however, RPM's are provided, and on Windows Native,
self-extracting executables.

In many cases, both Mule and non-Mule versions are provided.
In general, executables are built with most or all of the optional
graphics libraries.
 
Each tarball has an associated README file which contains detailed
installation instructions, as well as information about how the binary
was built and what features it contains.  Please view the README in
its entirety before downloading a particular binary to insure
compatibility with your system.

Currently available:

In aix/ 

xemacs-21.1.3-rs6000-ibm-aix4.1.4.0.tar.gz
xemacs-21.1.3-rs6000-ibm-aix4.2.1.0.tar.gz
xemacs-21.1.3-rs6000-ibm-aix4.3.0.0.tar.gz

In cygwin32/

xemacs-21.1.3-i686-pc-cygwin32-b19-X.tar.gz
xemacs-21.1.3-i686-pc-cygwin32-b19.tar.gz
xemacs-21.1.3-i686-pc-cygwin32-b20.1-X.tar.gz
xemacs-21.1.3-i686-pc-cygwin32-b20.1.tar.gz
xemacs-21.1.8-i686-pc-cygwin32-1.0.tar.gz

In dec-unix/

xemacs-21.1.3-alpha-dec-osf4.0d-mule.tar.gz
xemacs-21.1.3-alpha-dec-osf4.0d.tar.gz

In freebsd/

xemacs-21.1.3-i386-unknown-freebsd3.1-mule.tar.gz
xemacs-21.1.3-i386-unknown-freebsd3.1.tar.gz

In hpux/

xemacs-21.1.3-hppa1.1-hp-hpux11.00-mule.tar.gz
xemacs-21.1.3-hppa1.1-hp-hpux11.00.tar.gz

In irix/

xemacs-21.1.3-mips-sgi-irix6.5-mule.tar.gz
xemacs-21.1.3-mips-sgi-irix6.5.tar.gz

In linux/RPMS/i386/

xemacs-21.1.3-1.i386.rpm
xemacs-21.1.3-1.src.rpm
xemacs-el-21.1.3-1.i386.rpm
xemacs-extras-21.1.3-1.i386.rpm
xemacs-packages-19990513-1.noarch.rpm
xemacs-packages-19990513-1.src.rpm
xemacs-packages-el-19990513-1.noarch.rpm

In linux/RPMS/powerpc/

xemacs-21.1.3-xe1.ppc.rpm     
xemacs-21.1.3-xe1.src.rpm     
xemacs-el-21.1.3-xe1.ppc.rpm
xemacs-extras-21.1.3-xe1.ppc.rpm 
xemacs-info-21.1.3-xe1.ppc.rpm   
xemacs-minpkgs-21.1.3-xe1.ppc.rpm

In netbsd/

xemacs-21.1.9-sparc-unknown-netbsd1.4.1-mule.tar.gz
xemacs-21.1.9-sparc-unknown-netbsd1.4.1.tar.gz

In solaris/

xemacs-21.1.3-i386-pc-solaris2.7-mule.tar.gz
xemacs-21.1.3-i386-pc-solaris2.7.tar.gz
xemacs-21.1.3-sparc-sun-solaris2.6-mule.tar.gz
xemacs-21.1.3-sparc-sun-solaris2.6.tar.gz

In win32/

xemacs-21.1.9-i586-pc-win32.EXE