Calculating dependencies   ...done!
>>> emerge (1 of 1) sys-libs/ncurses-5.4-r5 to /
>>> md5 files   ;-) ChangeLog
>>> md5 files   ;-) metadata.xml
>>> md5 files   ;-) ncurses-5.4.20050319.ebuild
>>> md5 files   ;-) ncurses-5.4-r5.ebuild
>>> md5 files   ;-) ncurses-5.4-r6.ebuild
>>> md5 files   ;-) files/digest-ncurses-5.4.20050319
>>> md5 files   ;-) files/digest-ncurses-5.4-r5
>>> md5 files   ;-) files/digest-ncurses-5.4-r6
>>> md5 files   ;-) files/ncurses-5.4-c++-templates.patch
>>> md5 files   ;-) files/ncurses-5.4-share-sed.patch
>>> md5 files   ;-) files/ncurses-5.4-xterm.patch
>>> md5 files   ;-) files/xterm-debian.ti
>>> md5 src_uri ;-) ncurses-5.4.tar.gz
>>> Unpacking source...
>>> Unpacking ncurses-5.4.tar.gz to /var/tmp/portage/ncurses-5.4-r5/work
 ESC[32;01m*ESC[0m Applying ncurses-5.4-xterm.patch ...
ESC[AESC[163G  ESC[34;01m[ ESC[32;01mokESC[34;01m ]ESC[0m
 ESC[32;01m*ESC[0m Applying ncurses-5.4-share-sed.patch ...
ESC[AESC[163G  ESC[34;01m[ ESC[32;01mokESC[34;01m ]ESC[0m
 ESC[32;01m*ESC[0m Applying ncurses-5.4-c++-templates.patch ...
ESC[AESC[163G  ESC[34;01m[ ESC[32;01mokESC[34;01m ]ESC[0m
>>> Source unpacked.
 * econf: updating ncurses-5.4/config.guess with /usr/share/gnuconfig/config.guess
 * econf: updating ncurses-5.4/config.sub with /usr/share/gnuconfig/config.sub
./configure --prefix=/usr --host=mips-unknown-linux-gnu --mandir=/usr/share/man --infodir=/usr/share/info --datadir=/usr/share --sysconfdir=/etc --localstatedir=/var/lib 
--libdir=/lib --with-terminfo-dirs=/etc/terminfo:/usr/share/terminfo --disable-termcap --with-shared --with-rcs-ids --without-ada --enable-symlinks --program-prefix= --wi
thout-debug --with-gpm
configure: WARNING: If you wanted to set the --build type, don't use --host.
    If a cross compiler is detected then cross compile mode will be used.
Configuring NCURSES 5.4 ABI 5 (Sun May 29 04:00:46 UTC 2005)
checking build system type... ./config.guess: unable to guess system type

This script, last modified 2005-03-24, has failed to recognize
the operating system you are using. It is advised that you
download the most up to date version of the config scripts from

  http://savannah.gnu.org/cgi-bin/viewcvs/*checkout*/config/config/config.guess
and
  http://savannah.gnu.org/cgi-bin/viewcvs/*checkout*/config/config/config.sub

If the version you run (./config.guess) is already up to date, please
send the following data and any information you think might be
pertinent to <config-patches@gnu.org> in order to provide the needed
information to handle your system.

config.guess timestamp = 2005-03-24

uname -m = mips64
uname -r = 2.6.10-mipscvs-20050115-ip30
uname -s = Linux
uname -v = #2 Fri Jan 28 20:59:55 EST 2005

/usr/bin/uname -p = 
/bin/uname -X     = 

hostinfo               = 
/bin/universe          = 
/usr/bin/arch -k       = 
/bin/arch              = 
/usr/bin/oslevel       = 
/usr/convex/getsysinfo = 

UNAME_MACHINE = mips64
UNAME_RELEASE = 2.6.10-mipscvs-20050115-ip30
UNAME_SYSTEM  = Linux
UNAME_VERSION = #2 Fri Jan 28 20:59:55 EST 2005
configure: error: cannot guess build type; you must specify one

!!! Please attach the config.log to your bug report:
!!! /var/tmp/portage/ncurses-5.4-r5/work/ncurses-5.4/config.log

!!! ERROR: sys-libs/ncurses-5.4-r5 failed.
!!! Function econf, Line 485, Exitcode 0
!!! econf failed
!!! If you need support, post the topmost build error, NOT this status message.