error "You haven't built things yet, have you?"
}
-if ! test -x "$GIT_BUILD_DIR"/t/helper/test-tool
+if ! test -x "$GIT_BUILD_DIR"/t/helper/test-tool$X
then
echo >&2 'You need to build test-tool:'
echo >&2 'Run "make t/helper/test-tool" in the source (toplevel) directory'