configure: accept --with-libidn2 instead

... which the help text already implied since we switched to libidn2
from libidn in commit 9c91ec778104ae3b back in October 2016.

Reported-by: Christian Weisgerber
Bug: https://curl.haxx.se/mail/lib-2016-12/0110.html

diff --git a/configure.ac b/configure.ac
index 91028458f03d6ef046cd05434b4dd50a9789127b..65dac55bc076e9e9ed1b301026b55b1e0d132b9f 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -2830,7 +2830,7 @@ dnl **********************************************************************
 
 AC_MSG_CHECKING([whether to build with libidn2])
 OPT_IDN="default"
-AC_ARG_WITH(libidn,
+AC_ARG_WITH(libidn2,
 AC_HELP_STRING([--with-libidn2=PATH],[Enable libidn2 usage])
 AC_HELP_STRING([--without-libidn2],[Disable libidn2 usage]),
   [OPT_IDN=$withval])