makefile default variable
2013年4月16日 — But I am not happy with this solution: it always creates the variable VARNAME and this may change the behavior on some makefiles. Is there a ... ,A variable is a name defined in a makefile to represent a string of text, called the ... By default, only variables that came from the environment or the command ...
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 makefile default variable 相關參考資料
Define a Makefile variable using a ENV variable or a default ...
2014年6月17日 — To follow up on my comments above, here's an example: T ?= foo all: : '$(T)'. Now if I run the Makefile in various ways, it behaves as we expect ... https://stackoverflow.com get a default value when variable is unset in make - Stack ...
2013年4月16日 — But I am not happy with this solution: it always creates the variable VARNAME and this may change the behavior on some makefiles. Is there a ... https://stackoverflow.com GNU make - How to Use Variables
A variable is a name defined in a makefile to represent a string of text, called the ... By default, only variables that came from the environment or the command ... http://profesores.elo.utfsm.cl GNU make - How to Use Variables - ftp
A variable is a name defined in a makefile to represent a string of text, called the ... By default, only variables that came from the environment or the command ... https://ftp.gnu.org GNU Makefile default value variables with target files in their ...
2016年11月6日 — Sorry, but I just found the solution myself. The following lines do what I wanted. MKIMAGEOUTPUT ?= /dev/null quiet_cmd_mkimage ... https://stackoverflow.com Implicit Variables (GNU make) - GNU.org
The default values of the variables used are ' cc ' and nothing, resulting in the command ' cc -c '. By redefining ' CC ' to ' ncc ', you could cause ' ncc ' to... https://www.gnu.org Makefile: Default Value of Variable that is set but has null ...
2018年9月21日 — Since you're using GNU make , you could use the ?= operator: FOO ?= bar. but that doesn't deal with pre-existing null (or rather, empty) values. https://unix.stackexchange.com Special Variables (GNU make) - GNU.org
name1 = Makefile name2 = inc.mk .DEFAULT_GOAL. Sets the default goal to be used if no targets were specified on the command line (see Arguments to ... https://www.gnu.org use environment variable if set otherwise use default value in ...
2018年11月19日 — So you can just write, e.g.. Makefile (1) ifdef myvar MYVAR := $(myvar) else MYVAR := default endif .PHONY: all all: echo ... https://stackoverflow.com |