Preserve PYTHONPATH in Makefile

Necessary to locate `grumpy-tools` when building wheel for runtime during `pip install`.
grumpyhome · Oct 10, 2019 · 9d26049 · 9d26049
1 parent 9693e46
commit 9d26049
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/grumpy-runtime-src/Makefile b/grumpy-runtime-src/Makefile
@@ -50,8 +50,12 @@ PY_DIR := build/lib/python2.7/site-packages
 PY_INSTALL_DIR := $(shell $(PYTHON) -c "from distutils.sysconfig import get_python_lib; print(get_python_lib())")
 
 export GOPATH := $(ROOT_DIR)/build
-export PYTHONPATH := $(ROOT_DIR)/$(PY_DIR)
 export PATH := $(ROOT_DIR)/build/bin:$(PATH)
+ifndef PYTHONPATH
+  export PYTHONPATH := $(ROOT_DIR)/$(PY_DIR)
+else
+  export PYTHONPATH := $(PYTHONPATH):$(ROOT_DIR)/$(PY_DIR)
+endif
 
 GOPATH_PY_ROOT := $(GOPATH)/src/__python__