build: Add parallel-tests automake option

We use PY_LOG_COMPILER in Makefile.am for running *.py tests, which requires
automake's parallel test runner. This has only been the default from 1.13 on.
As we only require automake 1.11, add it as an option explicitly.

diff --git a/configure.ac b/configure.ac
index e032005..12ed773 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -34,7 +34,7 @@ AC_USE_SYSTEM_EXTENSIONS
 AC_SYS_LARGEFILE
 AC_PREFIX_DEFAULT([/usr])
 AM_MAINTAINER_MODE([enable])
-AM_INIT_AUTOMAKE([foreign 1.11 -Wall -Wno-portability silent-rules tar-pax no-dist-gzip dist-xz subdir-objects])
+AM_INIT_AUTOMAKE([foreign 1.11 -Wall -Wno-portability silent-rules tar-pax no-dist-gzip dist-xz subdir-objects parallel-tests])
 AM_SILENT_RULES([yes])
 AC_CANONICAL_HOST
 AC_DEFINE_UNQUOTED([CANONICAL_HOST], "$host", [Canonical host string.])