address comment

diff --git a/deal.II-toolchain/packages/petsc.package b/deal.II-toolchain/packages/petsc.package
index 45bb627c69af6a474adc5618aea72d6101b8e64b..2fcb24ac80e4ed45bb8bab9d11d4fc2d05686d39 100644 (file)
--- a/deal.II-toolchain/packages/petsc.package
+++ b/deal.II-toolchain/packages/petsc.package
@@ -98,7 +98,9 @@ package_specific_setup () {
 
 package_specific_register () {
     export PETSC_DIR=${INSTALL_PATH}
-    export SCALAPACK_DIR=${INSTALL_PATH}
+    if [ ! -z "${PARMETIS_DIR}" ]; then
+        export SCALAPACK_DIR=${INSTALL_PATH}
+    fi
 }
 
 package_specific_conf () {