make - Unix, Linux Command
Makefile. Make searches the current directory for the makefile to use, e.g. GNU Make searches files in order for a file named one of GNUmakefile, makefile, or Makefile and then runs the specified (or default) target(s) from (only) that file. The makefile language is similar to declarative programming. Aug 22, аи The make utility requires a file, Makefile (or makefile), which defines set of tasks to be executed. GNU/Linux, Git, and Python. He is a developer working on Red Hat Insights and previously worked on OpenStack & ManageIQ/CloudForms. He also likes to explore Swift Object Storage in his spare time. He can be reached on IRC as psachin.
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Mar 13, аи Linux make command, examples, syntax, and help. Description. The purpose of the make utility is to determine automatically which pieces of a large program need to be re-compiled, and issue the commands necessary to recompile funlovestory.com documentation describes the GNU implementation of make, which was written by Richard Stallman and Roland McGrath, and is currently . Browse other questions tagged makefile gnu-make or ask your own question. The Overflow Blog How often do people actually copy and paste from Stack Overflow? The solution for PyCharm would be to install a Makefile support plugin: Open Preferences (cmd +,) Go to Plugins-> Marketplace; Search for Makefile support, install and restart the IDE. This should fix the problem and provide a syntax for a makefile.
Jump to navigation. 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. Most open source projects use make to compile a final executable binary, which can then be installed using make install. In this article, we'll explore make and Makefile using basic and advanced examples.
Before you start, ensure that make is installed in your system. Let's start by printing the classic "Hello World" on the terminal. Create a empty directory myproject containing a file Makefile with this content:. Now run the file by typing make inside the directory myproject. The output will be:.
This is called the target. The prerequisites or dependencies follow the target. For the sake of simplicity, we have not defined any prerequisites in this example. The command echo "Hello World" is called the recipe.
The recipe uses prerequisites to make a target. The target, prerequisites, and recipes together make a rule. As an example, a target might be a binary file that depends on prerequisites source files. On the other hand, a prerequisite can also be a target that depends on other dependencies:. It is not necessary for the target to be a file; it could be just a name for the recipe, as in our example. We call these "phony targets.
Going back to the example above, when make was executed, the entire command echo "Hello World" was displayed, followed by actual command output.
We often don't want that. To suppress echoing the actual command, we need to start echo with :. Let's add a few more phony targets: generate and clean to the Makefile :. That's because only the first target in the makefile is the default target.
Often called the default goal , this is the reason you will see all as the first target in most projects. It is the responsibility of all to call other targets. We can override this behavior using a special phony target called.
As the name suggests, the phony target. This is why most makefiles include all as a target that can call as many targets as needed. Before running make , let's include another special phony target,.
PHONY , where we define all the targets that are not files. Here is the complete makefile:. It is a good practice not to call clean in all or put it as the first target. Now that you have an idea of how a basic makefile works and how to write a simple makefile, let's look at some more advanced examples. Our latest Linux articles In the above example, most target and prerequisite values are hard-coded, but in real projects, these are replaced with variables and patterns.
For example, to assign the command gcc to a variable CC :. This is also called a recursive expanded variable , and it is used in a rule as shown below:. But if one tries to reassign a variable to itself, it will cause an infinite loop. Let's verify this:. We should have no problem running the makefile below:. The following makefile can compile all C programs by using variables, patterns, and functions.
Let's explore it line by line:. In this case, all files with the. In this case, if SRCS has values 'foo. Let's look at an example to understand this rule. Below is the rule in its expanded form:. Every prerequisite in the previous rule is considered a target for this rule.
Below is the rewrite of the above makefile, assuming it is placed in the directory having a single file foo. For more on makefiles, refer to the GNU Make manual , which offers a complete reference and examples. You can also read our Introduction to GNU Autotools to learn how to automate the generation of a makefile for your coding project.
What is a Makefile and how does it work? Run and compile your programs more efficiently with this handy automation tool. Image by :. Get the highlights in your inbox every week. Basic examples Let's start by printing the classic "Hello World" on the terminal. More Linux resources. Our latest Linux articles. Usage: make compile all binary make clean remove ALL binaries and objects. Topics Linux. About the author. He also likes to explore Swift Object Storage in his spare time. More about me.
Recommended reading Restore an old MacBook with Linux. Play a fun math game with Linux commands. Create an encrypted file vault on Linux. Kiko Fernandez-Reyes on 22 Aug Permalink. Hi, Thanks for this tutorial.
Really useful and easy to follow. Sachin Patil on 22 Aug Permalink. Glad that you liked it. Thomas on 23 Aug Permalink.
Interesting article. It motivate me to play around with Makefiles. Thank you. Sachin Patil on 24 Aug Permalink. RogersGuedes on 11 Sep Permalink. Thank you so much! Sachin Patil on 21 Nov Permalink. Neeraj Sharma on 05 Nov Permalink. Thank you so much Sachin Patil on 15 Nov Permalink. Subscribe to our weekly newsletter Get the highlights in your inbox every week.