Prompt to bootstrap python.make if not loaded.

Author: jeffhung

GNUmakefile

@@ -7,7 +7,16 @@
 # ----------------------------------------------------------------------------
 
 .PHONY: all
-all: python-help
+all:
 
+ifneq (,$(wildcard python.make))
 include python.make
+else
+ifeq (,$(findstring python,$(MAKECMDGOALS)))
+$(info Please run `make python` to bootstrap python.make.)
+endif
+.PHONY: python
+python:
+	wget --content-disposition https://bit.ly/python-make
+endif
 

README.md

@@ -45,6 +45,23 @@ targets in:
 
 	include python.make
 
+You could even write the makefile as following to help user bootstrap build
+environment if you wish not check `python.make` into your source repository:
+
+	.PHONY: all
+	all:
+	
+	ifneq (,$(wildcard python.make))
+	include python.make
+	else
+	ifeq (,$(findstring python,$(MAKECMDGOALS)))
+	$(info Please run `make python` to bootstrap python.make.)
+	endif
+	.PHONY: python
+	python:
+		wget --content-disposition https://bit.ly/python-make
+	endif
+
 
 Install
 -------