--- install.sh	2017-12-03 06:08:29.712290476 -0500
+++ install_new.sh	2018-02-15 14:57:37.017662059 -0500
@@ -49,9 +49,10 @@
 #------------------------------------------------------------------------------
 # settings
 
-BASE_PATH="/usr/local"
+PREFIX="${PREFIX:-}"
+BASE_PATH="${PREFIX}/usr/local"
 BIN_PATH="$BASE_PATH/bin"
-SHARE_PATH="/usr/local/share/wit"
+SHARE_PATH="${PREFIX}/usr/local/share/wit"
 
 BIN_FILES="wit wwt wdf wfuse "
 WDF_LINKS="wdf-cat wdf-dump"