configure.ac: Fix handling --with-libcurl

It was reported being --with-libcurl in the help (and the check for libcurl
being installed used $with_libcurl accordingly), but the option handling was set
using $with_curl and, therefore, expected option --with-curl.

In the end, --with-libcurl wasn't recognized, and --with-curl had no effect.

Signed-off-by: Olivier Brunel <jjk@jjacky.com>
Signed-off-by: Allan McRae <allan@archlinux.org>
(cherry picked from commit 56ae9603768bdc850f32bc789a474ae836305033)

1 files changed, 2 insertions, 2 deletions

diff --git a/configure.ac b/configure.ac
index dd4ac041..03e96705 100644
--- a/configure.ac
+++ b/configure.ac
@@ -131,9 +131,9 @@ AC_ARG_WITH(gpgme,
 	[], [with_gpgme=check])
 
 # Help line for using libcurl
-AC_ARG_WITH(curl,
+AC_ARG_WITH(libcurl,
 	AS_HELP_STRING([--with-libcurl], [use libcurl for the internal downloader]),
-	[], [with_curl=check])
+	[], [with_libcurl=check])
 
 # Help line for documentation
 AC_ARG_ENABLE(doc,