diff --git a/bin/bash_shared/defines.sh b/bin/bash_shared/defines.sh
index 8d30720b5..512173a8b 100644
--- a/bin/bash_shared/defines.sh
+++ b/bin/bash_shared/defines.sh
@@ -1,4 +1,9 @@
-AC_PATH_ROOT=$(readlink -f "$AC_PATH_BIN/../")
+unamestr=`uname`
+if [[ "$unamestr" == 'Darwin' ]]; then
+   AC_PATH_ROOT=$(greadlink -f "$AC_PATH_BIN/../")
+else
+   AC_PATH_ROOT=$(readlink -f "$AC_PATH_BIN/../")
+fi
 
 AC_PATH_CONF="$AC_PATH_ROOT/conf"