Merge branch 'develop' of github.com:efabless/caravel into develop

Pull before push

.travisCI/runPrecheck.sh

diff --git a/.travisCI/runPrecheck.sh b/.travisCI/runPrecheck.sh
index 786b8b6..4a09938 100644
--- a/.travisCI/runPrecheck.sh
+++ b/.travisCI/runPrecheck.sh
@@ -13,8 +13,9 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 export TARGET_PATH=$(pwd)
+export PDK_ROOT=$(pwd)/pdks
 cd open_mpw_precheck
-docker run -v $(pwd):/usr/local/bin -v $TARGET_PATH:$TARGET_PATH -u $(id -u $USER):$(id -g $USER) open_mpw_prechecker:latest bash -c "python3 open_mpw_prechecker.py --skip_drc -t $TARGET_PATH"
+docker run -v $(pwd):/usr/local/bin -v $TARGET_PATH:$TARGET_PATH -v $PDK_ROOT:$PDK_ROOT -u $(id -u $USER):$(id -g $USER) open_mpw_prechecker:latest bash -c "python3 open_mpw_prechecker.py --skip_drc -p $PDK_ROOT -t $TARGET_PATH"
 output=$TARGET_PATH/checks/full_log.log
 
 gzipped_file=$TARGET_PATH/checks/full_log.log.gz

.travisCI/travisBuild.sh

diff --git a/.travisCI/travisBuild.sh b/.travisCI/travisBuild.sh
index bc0c40c..a607592 100644
--- a/.travisCI/travisBuild.sh
+++ b/.travisCI/travisBuild.sh
@@ -17,5 +17,7 @@
 git clone https://github.com/efabless/open_mpw_precheck.git
 cd open_mpw_precheck/dependencies
 sh build-docker.sh
+export PDK_ROOT=$TARGET_PATH/pdks
+sh build-pdk.sh
 cd $TARGET_DIR
 exit 0