don't use emulator if host and target arch are equal

diff --git a/common_functions b/common_functions
index df6a0c8..25fe0df 100755 (executable)
--- a/common_functions
+++ b/common_functions
@@ -44,7 +44,7 @@ is_emulator_arch()
 {
     local arch
     for arch in $EMULATOR_ARCHS; do
-       if test "$BUILD_ARCH" = "$arch"; then
+       if test "$BUILD_ARCH" = "$arch" -a "$BUILD_HOST_ARCH" != "$arch"; then
            return 0
        fi
     done