1 files changed, 11 insertions, 1 deletions
diff --git a/zlib.sh b/zlib.sh
index b294048..a1c29ed 100644
--- a/zlib.sh
+++ b/zlib.sh
@@ -61,7 +61,17 @@ if [ -z "${ZLIB_DIR}" -o "${ZLIB_DIR}" = 'BUILD' ]; then
     NAME=zlib-1.2.5
     SRCDIR=$(dirname $0)
     BUILD_DIR=${SCRATCH_BUILD}/build/${THORN}
-    INSTALL_DIR=${SCRATCH_BUILD}/external/${THORN}
+    if [ -z "${ZLIB_INSTALL_DIR}" ]; then
+        echo "BEGIN MESSAGE"
+        echo "ZLIB install directory, ZLIB_INSTALL_DIR, not set. Installing in the default configuration location. "
+        echo "END MESSAGE"
+     INSTALL_DIR=${SCRATCH_BUILD}/external/${THORN}
+    else
+        echo "BEGIN MESSAGE"
+        echo "ZLIB install directory, ZLIB_INSTALL_DIR, selected. Installing ZLIB at ${ZLIB_INSTALL_DIR} "
+        echo "END MESSAGE"
+     INSTALL_DIR=${ZLIB_INSTALL_DIR}
+    fi
     DONE_FILE=${SCRATCH_BUILD}/done/${THORN}
     ZLIB_DIR=${INSTALL_DIR}