Add PKG_CONFIG_PATH in cross.conf.
    - This fix e2fsprogs compilation issue with external libblkid and libuuid
      among others
iptables now install connlabel.conf unconditionally
Fix iproute2 compilation
Autoconf fix footprint mismatch possibility :
    - On system where emacs is present some files will be added. As
      our clfs won't have any emacs port disable it.

    XXX : If one day an emacs port has to be done the config.cache
          ac_cv_prog_emacs_ok should be turned to yes
Remove perl from core pkg_list has perl package has not yet been made
Remove stupid autoconf version checking for way too old redhat autoconf.
    - autoconf v2.13 compiles ok
Add file for toolchain as cross file need it to compile ok
Cross Binutils was stupidly ready for canadian compilation. Make it back to a
simple cross compiled binutils