makefile if variable equals
A conditional causes part of a makefile to be obeyed or ignored depending on the values of variables. Conditionals can compare the value of one variable to ... , The thing that is odd about GNUmake conditionals is that there is no boolean type in make -- everything is a string. So the conditionals all work ...
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 makefile if variable equals 相關參考資料
GNU make - Conditional Parts of Makefiles
A conditional causes part of a makefile to be obeyed or ignored depending on the values of variables. Conditionals can compare the value of one variable to ... ftp://ftp.gnu.org GNU Make - Conditional Parts of Makefiles - MIT
A conditional causes part of a makefile to be obeyed or ignored depending on the values of variables. Conditionals can compare the value of one variable to ... http://web.mit.edu gnu make - How to check if a variable is equal to one of two ...
The thing that is odd about GNUmake conditionals is that there is no boolean type in make -- everything is a string. So the conditionals all work ... https://stackoverflow.com GNU make: Conditional Syntax
GNU make: Conditional Syntax. ... The syntax of a simple conditional with no else is as follows: ... Often you want to test if a variable has a non-empty value. https://www.gnu.org if statement - If conditions in a Makefile, inside a target ...
There are several problems here, so I'll start with my usual high-level advice: Start small and simple, add complexity a little at a time, test at ... https://stackoverflow.com makefile - GNU make conditional function $(if ...) inside a user ...
$(if ...) conditional function evaluates to true when the first argument passed to ... They can't be used inside variable definition and in functions. https://stackoverflow.com Makefile If-Then Else and Loops - Stack Overflow
conditional-directive text-if-true else text-if-false endif ... If Equal Syntax ... For each whitespace separated word in "list", the variable named by ... https://stackoverflow.com Makefile set if variable is empty - Stack Overflow
Any elegant solution to set the variable if empty? GNU make is hardly known for elegant solutions. Unless you find trapdoors and minefields to ... https://stackoverflow.com Performing greater-than less-than calculations in a Makefile ...
However, if you, like me, want to use greater-than comparison in order to then set a make variable via make 's $(eval) command, then you will ... https://stackoverflow.com shell - Checking environment variables' value in Makefile - Unix ...
The ifeq() directive has to be in column 1, remove any leading whitespace ie test_target: ifeq ($(TEST),"TRUE") echo "Do something" endif. ^ no whitespace. https://unix.stackexchange.com |