diff --git a/configure.ac b/configure.ac
index 351819db8cebfd06ca2e916db190c4bf8eaeffdf..3004834232860d6fa67a80d10910470b75397fc7 100644
--- a/configure.ac
+++ b/configure.ac
@@ -406,6 +406,16 @@ powerpc-unknown-openbsd*)
         HostVendor_CPP='unknown'
         HostOS_CPP='openbsd'
         ;;
+powerpc64-unknown-linux*)
+	HostPlatform=powerpc64-unknown-linux
+	TargetPlatform=powerpc64-unknown-linux
+	BuildPlatform=powerpc64-unknown-linux
+	HostPlatform_CPP='powerpc64_unknown_linux'
+	HostArch_CPP='powerpc64'
+        HostVendor_CPP='unknown'
+	HostOS_CPP='linux'
+	;;
+								
 s390-ibm-linux*)
        HostPlatform=s390-ibm-linux
        TargetPlatform=s390-ibm-linux #hack