enable Lefty in out-of-source build CI job

Commit d64b75d2704bd3ed47b3f74c0686e19ca74e65fc explicitly enabled Lefty in
several places in preparation for it becoming disabled by default. However, it
accidentally missed the out-of-source build.

diff --git a/ci/out-of-source-build.sh b/ci/out-of-source-build.sh
index 2f9f3f26e8bb431c3b18d5ff21df305194b4caf1..196cccc3b1993460b128de07eeb30559647d8b46 100755 (executable)
--- a/ci/out-of-source-build.sh
+++ b/ci/out-of-source-build.sh
@@ -19,7 +19,7 @@ tar xfz graphviz-${GV_VERSION}.tar.gz
 # setup a directory for building in
 mkdir build
 cd build
-../graphviz-${GV_VERSION}/configure
+../graphviz-${GV_VERSION}/configure --enable-lefty
 
 # build Graphviz
 make