--- libvpx-1.7.0.old/build/make/configure.sh
+++ libvpx-1.7.0/build/make/configure.sh
@@ -784,6 +784,7 @@
   fi
 
   toolchain=${toolchain:-generic-gnu}
+  toolchain=`echo $toolchain | sed -e s/-pc-/-/ -e s/-gnu/-gcc/`
 
   is_in ${toolchain} ${all_platforms} || enabled force_toolchain \
     || die "Unrecognized toolchain '${toolchain}'"