![]() ![]() Once a suitable makefile exists, each time you change some source files, this simple shell command: make ``When should I use a Makefile?'' When there is more than one file to handle. In a program, typically the executable file is updated from object files, which are in turn made by compiling source files. To prepare to use make, you must write a file called the makefile that describes the relationships among files in your program, and the states the commands for updating each file. You can use it to describe any task where some files must be updated automatically from others whenever the others change. In fact, make is not limited to programs. ![]() Our examples show C programs, since they are most common, but you can use make with any programming language whose compiler can be run with a shell command. ![]() The manual describes the GNU implementation of make, which was written by Richard Stallman and Roland McGrath. The purpose of the make utility is to determine automatically which pieces of a large program need to be recompiled, and issue the commands to recompile them. If no -f option is present, make will look for the makefiles GNUmakefile,makefile, and Makefile, in that order. make can also execute actions besides compiling, such as cleaning, grant permissions, etc… make executes commands in the makefile to update one or more target names, where name is typically a program. Makefile tells make how to generate object files, intermediate files, and executable files. make allows you to manage large programs and keep track of which portion of the entire program have been changed. TA: Samira Pouyanfar / Hector Cen/Tianyi Wang Spring 2018Ģ What’s make? A utility that automatically builds executable programs and libraries from source code by reading files called Makefile, which specify how to derive the target program. Shu-Ching Chen"- Presentation transcript:ġ Makefile Tutorial CIS5027 Prof: Dr. Presentation on theme: "Makefile Tutorial CIS5027 Prof: Dr. ![]()
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