Fix missing -f in test.

diff --git a/etc/run-three-stages b/etc/run-three-stages
index 7cc0e275eebc944d43e22a17712d718dd7764142..193a30e3e27ff797b9b87e3e12407292ec2d3c4e 100755 (executable)
--- a/etc/run-three-stages
+++ b/etc/run-three-stages
@@ -93,7 +93,7 @@ find_stage ()
 find_build_stage ()
 {
     local STAGE=$(pwd)/${1}
-    if [[ -x ${STAGE}/microcode/scheme && ${STAGE}/lib/all.com ]]; then
+    if [[ -x ${STAGE}/microcode/scheme && -f ${STAGE}/lib/all.com ]]; then
        export MIT_SCHEME_EXE=${STAGE}/microcode/scheme
        export MITSCHEME_LIBRARY_PATH=${STAGE}/lib
        return 0