uname -a: Linux x86-04.phx2.fedoraproject.org 2.6.32-71.14.1.el6.x86_64 #1 SMP Wed Jan 5 17:01:01 EST 2011 x86_64 x86_64 x86_64 GNU/Linux

./configure  '--build=x86_64-redhat-linux-gnu' '--host=x86_64-redhat-linux-gnu' '--program-prefix=' '--disable-dependency-tracking' '--prefix=/usr' '--exec-prefix=/usr' '--bindir=/usr/bin' '--sbindir=/usr/sbin' '--sysconfdir=/etc' '--datadir=/usr/share' '--includedir=/usr/include' '--libdir=/usr/lib64' '--libexecdir=/usr/libexec' '--localstatedir=/var' '--sharedstatedir=/var/lib' '--mandir=/usr/share/man' '--infodir=/usr/share/info' '--mandir=/usr/share/man/man1' '--with-archlibdir=/usr/lib64/xemacs-21.5-b29/x86_64-redhat-linux' '--with-moduledir=/usr/lib64/xemacs-21.5-b29/x86_64-redhat-linux/modules' '--with-lispdir=/usr/share/xemacs-21.5-b29/lisp' '--with-etcdir=/usr/share/xemacs-21.5-b29/etc' '--with-system-packages=/usr/share/xemacs' '--without-msw' '--with-mule' '--with-clash-detection' '--with-database=berkdb' '--without-ldap' '--without-postgresql' '--with-mail-locking=lockf' '--with-pop' '--without-hesiod' '--with-pdump' '--with-debug' '--with-error-checking=none' '--enable-bignum=gmp' '--with-docdir=/usr/lib64/xemacs-21.5-b29/doc-nox' '--with-sound=none' '--with-xim=no' '--without-canna' '--without-wnn' '--without-x' 'build_alias=x86_64-redhat-linux-gnu' 'host_alias=x86_64-redhat-linux-gnu' 'CFLAGS=-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic -fno-strict-aliasing'


XEmacs 21.5-b29 "garbanzo"  configured for `x86_64-redhat-linux'.

Compilation Environment and Installation Defaults:
  Source code location:              /builddir/build/BUILD/xemacs-21.5.29
  Installation prefix:               /usr
  Operating system description file: `s/linux.h'
  Not using any machine description file
  Compiler version:                  gcc (GCC) 4.5.1 20100924 (Red Hat 4.5.1-4)
    - GCC specs file:                specs.
    - Compiler command:              gcc -Wall -Wno-switch -Wundef -Wsign-compare -Wno-char-subscripts -Wpacked -Wunused-parameter -g  -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic -fno-strict-aliasing
  libc version:                      glibc-2.13-1.x86_64
  Relocating allocator for buffers:  no
  GNU version of malloc:             yes
    - Using Doug Lea's new malloc from the GNU C Library.

Window System:

TTY:
  Compiling in support for ncurses.
  Compiling in support for GPM (General Purpose Mouse).

Images:

Sound:

Databases:
  Compiling in support for Berkeley database.

Internationalization:
  Compiling in support for Mule (multi-lingual Emacs).

Mail:
  Compiling in support for POP mail retrieval.
  Compiling in support for "lockf" mail spool file locking method.

Other Features:
  Inhibiting IPv6 canonicalization at startup.
  Compiling in support for dynamic shared object modules.
  Compiling in support for more number types using the GNU MP library.
  Using the new GC mark algorithms (KKCC).
  WARNING: ---------------------------------------------------------
  WARNING: The new algorithms are experimental. They are enabled by
  WARNING: default for this release. Use `--disable-kkcc' to
  WARNING: turn it off.
  WARNING: ---------------------------------------------------------
  Using the new portable dumper.
  Dumping into executable.
  Compiling in support for extra debugging code.