Michael ABBOTT reported that Ubuntu had problems running menuconfig.
Turned out that a POSIX script shell was in fact not POSIX: == does not check for equality, -eq does.

/trunk/kconfig/lxdialog/check-lxdialog.sh | 4 2 2 0 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

 # x86 specific options

 config ARCH_x86

     select ARCH_SUPPORT_ARCH

     select ARCH_SUPPORT_CPU

     select ARCH_SUPPORT_TUNE

     help

       The x86 architecture, as defined by:

         http://www.intel.com/