What is make phony?
A phony target is one that is not really the name of a file; rather it is just a name for a recipe to be executed when you make an explicit request. Once this is done, ‘ make clean ‘ will run the recipe regardless of whether there is a file named clean .
What is $( make?
$MAKE is the default variable which gets replaced with “make”. And in your scenario, $MAKE is used in commands part (recipe) of makefile. It means whenever there is a change in dependency, make executes the command make –no-print-directory post-build in whichever directory you are on.
What is the purpose of a phony target Give an example of a phony target?
A phony target is one that is not really the name of a file. It is just a name for some commands to be executed when you make an explicit request. There are two reasons to use a phony target: to avoid a conflict with a file of the same name, and to improve performance.
What are makefiles used for?
If you want to run or update a task when certain files are updated, the make utility can come in handy. The make utility requires a file, Makefile (or makefile ), which defines set of tasks to be executed. You may have used make to compile a program from source code.
What is Ldflags in makefile?
The make-specific variables (the ones in capital letters) follow a name convention such that: CC refers to the compiler (gcc in this case); CFLAGS contains compiler directives/options; and LDFLAGS is a list of link (or “load”) directives (here, instructions to link with the C math library).
What is make and makefile?
Make is Unix utility that is designed to start execution of a makefile. A makefile is a special file, containing shell commands, that you create and name makefile (or Makefile depending upon the system). The makefile contains a list of rules. These rules tell the system what commands you want to be executed.
What is makefile used for?
What does the phony directive in a makefile do?
PHONY target, make will run its recipe unconditionally, regardless of whether a file with that name exists or what its last-modification time is.
How does GNU Make work?
GNU Make is a tool which controls the generation of executables and other non-source files of a program from the program’s source files. Make gets its knowledge of how to build your program from a file called the makefile, which lists each of the non-source files and how to compute it from other files.