jenkins.sh: enable make distcheck

Change-Id: I967d4de9682cb2a45210f689ec076ef457841179
diff --git a/contrib/jenkins.sh b/contrib/jenkins.sh
index 72efdbc..8021bbd 100755
--- a/contrib/jenkins.sh
+++ b/contrib/jenkins.sh
@@ -75,5 +75,4 @@
 
 $MAKE $PARALLEL_MAKE
 LD_LIBRARY_PATH="$inst/lib" $MAKE check
-# distcheck is broken
-#LD_LIBRARY_PATH=$PWD/deps/install/lib $MAKE distcheck
+LD_LIBRARY_PATH="$inst/lib" $MAKE distcheck