--- ecls-10.4.1.ebuild.orig	2010-05-05 12:13:07.000000000 +1200
+++ ecls-10.4.1.ebuild.orig	2010-05-05 12:04:24.000000000 +1200
@@ -3,7 +3,7 @@ 
 # $Header: /var/cvsroot/gentoo-x86/dev-lisp/ecls/ecls-10.4.1.ebuild,v 1.1 2010/04/12 11:53:52 grozin Exp $
 
 EAPI=3
-inherit eutils multilib
+inherit eutils multilib flag-o-matic
 
 MY_P=ecl-${PV}
 
@@ -32,6 +32,15 @@ 
 		ewarn "USE flags gengc and precisegc are experimental"
 		ewarn "Don't use them if you want a stable ecl"
 	fi
+
+	# ecls is allergic to the altivec instruction set found in ppc 
+	# and most certainly ppc64 hardware.
+	# the flags are appended as appropriate -mcpu and -mtune flags
+	# turns altivec on.
+	if use ppc ; then
+		append-flags "-mno-altivec -mabi=no-altivec"
+	fi
+
 }
 
 src_prepare() {