makefile check environment variable
Check that given variables are set and all have non-empty values, # die with an error otherwise. # # Params: # 1. Variable name(s) to test. # 2.,If you are using GNU Make, you can use a workaround like ifeq($(origin SET_FLAG),undefined) $(info not set) else $(info set) endif. More or less cribbed from ... ,The ifeq() directive has to be in column 1, remove any leading whitespace ie test_target: ifeq ($(TEST),"TRUE") echo "Do something" endif. ^ no whitespace. , In GNU make, conditional parts are used e.g. like this ... If you really mean to test an environment variable (as opposed to a make variable), ..., Variables in make can come from the environment in which make is run. Every environment variable that make sees when it starts up is transformed into a make variable with the same name and value. However, an explicit assignment in the makefile, or with a, I only needed the environment variables locally to invoke my test command, here's an example setting multiple environment vars in a bash ..., I would do it this way: test: export GOOS= test: export GOARCH= test: fmt vet go test ./..., If used as a dependency for a target that is an actual file, using check-env will force that file target to be rebuilt. Other answers are global (e.g. the variable is required for all targets in the Makefile) or use the shell, e.g. if ENV was missing mak, The Basics: Getting environment variables out of GNU Make If you run this with FOO undefined in the environment you'll see the output FOO is. Without specifically exported FOO into the environment its value is not set in the environment used when GNU
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 makefile check environment variable 相關參考資料
Abort makefile if variable not set - Stack Overflow
Check that given variables are set and all have non-empty values, # die with an error otherwise. # # Params: # 1. Variable name(s) to test. # 2. https://stackoverflow.com Check if environmental variable is set in makefile - Stack Overflow
If you are using GNU Make, you can use a workaround like ifeq($(origin SET_FLAG),undefined) $(info not set) else $(info set) endif. More or less cribbed from ... https://stackoverflow.com Checking environment variables' value in Makefile - Unix & Linux ...
The ifeq() directive has to be in column 1, remove any leading whitespace ie test_target: ifeq ($(TEST),"TRUE") echo "Do something" endif. ^ no whitespace. https://unix.stackexchange.com Checking if variables are defined in a makefile - Stack Overflow
In GNU make, conditional parts are used e.g. like this ... If you really mean to test an environment variable (as opposed to a make variable), ... https://stackoverflow.com How to get a shell environment variable in a makefile? - Stack ...
Variables in make can come from the environment in which make is run. Every environment variable that make sees when it starts up is transformed into a make variable with the same name and value. How... https://stackoverflow.com How to set child process' environment variable in Makefile - Stack ...
I only needed the environment variables locally to invoke my test command, here's an example setting multiple environment vars in a bash ... https://stackoverflow.com Makefile environment variable for specific target - Stack Overflow
I would do it this way: test: export GOOS= test: export GOARCH= test: fmt vet go test ./... https://stackoverflow.com Makefile variable as prerequisite - Stack Overflow
If used as a dependency for a target that is an actual file, using check-env will force that file target to be rebuilt. Other answers are global (e.g. the variable is required for all targets in the ... https://stackoverflow.com The Basics: Getting environment variables into GNU Make ...
The Basics: Getting environment variables out of GNU Make If you run this with FOO undefined in the environment you'll see the output FOO is. Without specifically exported FOO into the environmen... https://www.cmcrossroads.com |