add function to translate CHOST tuples into ARCH for portage/kernel

diff --git a/eclass/toolchain-funcs.eclass b/eclass/toolchain-funcs.eclass
index 4e54e074ce2807bd8169a51149b9ede306ff6b8a..58d10261634ceb7d8a6a4bffcfd907f31f9d0de2 100644 (file)
--- a/eclass/toolchain-funcs.eclass
+++ b/eclass/toolchain-funcs.eclass
@@ -1,6 +1,6 @@
 # Copyright 1999-2004 Gentoo Foundation
 # Distributed under the terms of the GNU General Public License v2
-# $Header: /var/cvsroot/gentoo-x86/eclass/toolchain-funcs.eclass,v 1.18 2004/12/31 03:18:42 vapier Exp $
+# $Header: /var/cvsroot/gentoo-x86/eclass/toolchain-funcs.eclass,v 1.19 2005/01/10 02:41:58 vapier Exp $
 #
 # Author: Toolchain Ninjas <ninjas@gentoo.org>
 #
@@ -88,6 +88,40 @@ tc-is-cross-compiler() {
 }
 
 
+# Translate a CBUILD/CHOST/CTARGET into the kernel/portage
+# equivalent of $ARCH
+ninja_magic_to_arch() {
+ninj() { [[ ${type} = "kern" ]] && echo $1 || echo $2 ; }
+
+       local type=$1
+       local host=$2
+
+       case ${host} in
+               alpha*)         echo alpha;;
+               x86_64*)        ninj x86_64 amd64;;
+               arm*)           echo arm;;
+               hppa*)          ninj parisc hppa;;
+               ia64*)          echo ia64;;
+               mips*)          echo mips;;
+               powerpc64*)     echo ppc64;;
+               powerpc*)       echo ppc;;
+               sparc64*)       ninj sparc64 sparc;;
+               sparc*)         echo sparc;;
+               s390*)          echo s390;;
+               sh64*)          ninj sh64 sh;;
+               sh*)            echo sh;;
+               i?86*)          echo x86;;
+               *)                      echo wtf;;
+       esac
+}
+host_to_arch_kernel() {
+       ninja_magic_to_arch kern $@
+}
+host_to_arch_portage() {
+       ninja_magic_to_arch portage $@
+}
+
+
 # Returns the version as by `$CC -dumpversion`
 gcc-fullversion() {
        echo "$($(tc-getCC) -dumpversion)"