#64 define.mk was being used in bash context so the build was failing.  Now, clasp.env defines only 2 variables: SAFPLUS_MODEL_DIR, where your model (or prebuild) is and SAFPLUS_SRC_DIR, where SAFplus source code is (git/SAFplus/src).  (CLOVIS_ROOT is also defined but deprecated)  All makefiles should include /preface.mk at the top, either with the variable (models) or via a relative path (SAFplus components).  preface.mk will include the model or prebuild's define.mk to get the compilers, etc