+# check for openssl
+AC_ARG_ENABLE(openssl,
+ AC_HELP_STRING([--enable-openssl], [Enable signature checking with OpenSSL
+ [[default=no]] ]),
+ [want_openssl="$enableval"], [want_openssl="no"])
+
+if test "x$want_openssl" = "xyes"; then
+ PKG_CHECK_MODULES(OPENSSL, openssl)
+ AC_DEFINE(HAVE_OPENSSL, 1, [Define if you want OpenSSL support])
+fi
+