| ifneq ($(lastword a b),b) |
| $(error This Makefile require make 3.81 or newer) |
| endif |
| |
| # Detect whether shell style is windows or not |
| # https://stackoverflow.com/questions/714100/os-detecting-makefile/52062069#52062069 |
| ifeq '$(findstring ;,$(PATH))' ';' |
| CMDEXE := 1 |
| endif |
| |
| # Set TOP to be the path to get from the current directory (where make was |
| # invoked) to the top of the tree. $(lastword $(MAKEFILE_LIST)) returns |
| # the name of this makefile relative to where make was invoked. |
| |
| THIS_MAKEFILE := $(lastword $(MAKEFILE_LIST)) |
| TOP := $(patsubst %/tools/top.mk,%,$(THIS_MAKEFILE)) |
| |
| ifeq ($(CMDEXE),1) |
| TOP := $(subst \,/,$(shell for %%i in ( $(TOP) ) do echo %%~fi)) |
| else |
| TOP := $(shell realpath $(TOP)) |
| endif |
| #$(info Top directory is $(TOP)) |
| |
| ifeq ($(CMDEXE),1) |
| CURRENT_PATH := $(subst $(TOP)/,,$(subst \,/,$(shell echo %CD%))) |
| else |
| CURRENT_PATH := $(shell realpath --relative-to=$(TOP) `pwd`) |
| endif |
| #$(info Path from top is $(CURRENT_PATH)) |
