fix configure test for OpenSSL version

square brackets in case statements may be eaten by autoconf.

Report and fix from Filipp Gunbin; tweaked by naddy@

diff --git a/configure.ac b/configure.ac
index 5a9b3ff11e96dcbdfca5716a978e5fd34c109bb3..14e7c4a61c3a2505af390b2e26943ea09dc545fe 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -2612,7 +2612,7 @@ if test "x$openssl" = "xyes" ; then
                                AC_MSG_ERROR([OpenSSL >= 1.0.1 required (have "$ssl_library_ver")])
                                ;;
                        100*)   ;; # 1.0.x
-                       101000[0123456]*)
+                       101000[[0123456]]*)
                                # https://github.com/openssl/openssl/pull/4613
                                AC_MSG_ERROR([OpenSSL 1.1.x versions prior to 1.1.0g have a bug that breaks their use with OpenSSH (have "$ssl_library_ver")])
                                ;;