ci: use shell to directly set base_dir for osx builds

Summary: this crashes somehow and is impossible to debug remotely

Reviewers: bu5hm4n

Reviewed By: bu5hm4n

Subscribers: bu5hm4n, cedric, #reviewers, #committers

Tags: #efl

Differential Revision: https://phab.enlightenment.org/D10529

.ci/ci-setup-ccache.sh

@@ -7,6 +7,6 @@ if [ "$DISTRO" != "" ] ; then
   docker exec $(cat $HOME/cid)  ccache -pz
 else
   cp .ci/ccache.conf ~/.ccache
-  ccache -o base_dir="$(pwd)"
+  echo "base_dir = $pwd" >> ~/.ccache/ccache.conf
   ccache -pz
 fi