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Merge pull request #1870 from DRNadler/WindowsBuildFix

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Windows build fix for some mingw gnu make situations
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Ha Thach 2023-01-30 17:23:50 +07:00 committed by GitHub
commit 8681dbb7a2
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1 changed files with 20 additions and 5 deletions
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25
tools/top.mk
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@ -1,30 +1,45 @@
ifneq ($(lastword a b),b) ifneq ($(lastword a b),b)
$(error This Makefile require make 3.81 or newer) $(error This Makefile requires make 3.81 or newer)
endif endif
# Detect whether shell style is windows or not # Detect whether shell style is windows or not
# https://stackoverflow.com/questions/714100/os-detecting-makefile/52062069#52062069 # https://stackoverflow.com/questions/714100/os-detecting-makefile/52062069#52062069
ifeq '$(findstring ;,$(PATH))' ';' ifeq '$(findstring ;,$(PATH))' ';'
# PATH contains semicolon - so we're definitely on Windows.
CMDEXE := 1 CMDEXE := 1
# makefile shell commands should use syntax for DOS CMD, not unix sh
# Unfortunately, SHELL may point to sh or bash, which can't accept DOS syntax.
# We can't just use sh, because while sh and/or bash shell may be available,
# many Windows environments won't have utilities like realpath used below, so...
# Force DOS command shell on Windows.
SHELL := cmd.exe
endif endif
#$(info top.mk: SHELL=$(SHELL))
#$(info top.mk: CMDEXE=$(CMDEXE))
# Set TOP to be the path to get from the current directory (where make was # 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 # invoked) to the top of the tree. $(lastword $(MAKEFILE_LIST)) returns
# the name of this makefile relative to where make was invoked. # the name of this makefile relative to where make was invoked.
THIS_MAKEFILE := $(lastword $(MAKEFILE_LIST)) THIS_MAKEFILE := $(lastword $(MAKEFILE_LIST))
TOP := $(patsubst %/tools/top.mk,%,$(THIS_MAKEFILE))
# strip off /tools/top.mk to get for example ../../..
TOP := $(patsubst %/tools/top.mk,%,$(THIS_MAKEFILE))
#$(info top.mk: Initial TOP=$(TOP))
# Set TOP to an absolute path, for example /tinyUSB (from ../../..)
ifeq ($(CMDEXE),1) ifeq ($(CMDEXE),1)
TOP := $(subst \,/,$(shell for %%i in ( $(TOP) ) do echo %%~fi)) TOP := $(subst \,/,$(shell for %%i in ( $(TOP) ) do echo %%~fi))
else else
TOP := $(shell realpath $(TOP)) TOP := $(shell realpath $(TOP))
endif endif
#$(info Top directory is $(TOP)) #$(info top.mk: Top directory is $(TOP))
# Set CURRENT_PATH to the relative path from TOP to the current directory, ie examples/device/cdc_msc_freertos
ifeq ($(CMDEXE),1) ifeq ($(CMDEXE),1)
CURRENT_PATH := $(subst $(TOP)/,,$(subst \,/,$(shell echo %CD%))) CURRENT_PATH := $(subst $(TOP)/,,$(subst \,/,$(shell echo %CD%)))
else else
CURRENT_PATH := $(shell realpath --relative-to=$(TOP) `pwd`) CURRENT_PATH := $(shell realpath --relative-to=$(TOP) `pwd`)
endif endif
#$(info Path from top is $(CURRENT_PATH)) #$(info top.mk: Path from top is $(CURRENT_PATH))