Use portable tr syntax.

diff --git a/config.guess b/config.guess
index 35bb3081020a315a11a3e5fd515c990bf8cbcb2d..5e0068dd27945ccfe9b5b3dbf73ad32c2372b3b0 100755 (executable)
--- a/config.guess
+++ b/config.guess
@@ -322,7 +322,7 @@ EOF
        exit 0 ;;
     CRAY*[A-Z]90:*:*:*)
        echo ${UNAME_MACHINE}-cray-unicos${UNAME_RELEASE} \
-       | sed -e 's/CRAY.*\([A-Z]90\)/\1/' | tr A-Z a-z
+       | sed -e 's/CRAY.*\([A-Z]90\)/\1/' | tr '[A-Z]' '[a-z]'
        exit 0 ;;
     CRAY-2:*:*:*)
        echo cray2-cray-unicos