configure: fix unrecognized option --enable-external-tests
./configure --help indicates:
--enable-external-tests Include the VTY/CTRL tests in make check
[default=no]
but
./configure ... --enable-external-tests
configure: WARNING: unrecognized options: --enable-external-tests
the name of the option seems to be --enable-ext-tests.
diff --git a/openbsc/configure.ac b/openbsc/configure.ac
index 0777c0d..40ee444 100644
--- a/openbsc/configure.ac
+++ b/openbsc/configure.ac
@@ -141,7 +141,7 @@
[Include the VTY/CTRL tests in make check (deprecated)
[default=no]]),
[enable_ext_tests="$enableval"],[enable_ext_tests="no"])
-AC_ARG_ENABLE([ext_tests],
+AC_ARG_ENABLE([external_tests],
AC_HELP_STRING([--enable-external-tests],
[Include the VTY/CTRL tests in make check [default=no]]),
[enable_ext_tests="$enableval"],[enable_ext_tests="no"])