- #HOW TO MAKE MAKEFILE FOR C PROGRAM HOW TO#
- #HOW TO MAKE MAKEFILE FOR C PROGRAM INSTALL#
- #HOW TO MAKE MAKEFILE FOR C PROGRAM CODE#
The steps to compile it are verbose at first, but they'll become second nature as you work more with code. Hello World is the simplest C program imaginable: #include īecause it’s so simple, it’s easy to verify that it’s working correctly: if you see ‘Hello World!’ printed when you run it, you can be sure you did everything correctly.
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#HOW TO MAKE MAKEFILE FOR C PROGRAM HOW TO#
This article is available in PDF format for easy printingįor learning how to compile C files, it's best to start simple.
#HOW TO MAKE MAKEFILE FOR C PROGRAM CODE#
Learning to use Unix-like development tools has direct applicability to developing code for embedded systems and will make you a fundamentally better programmer. You can use some variant of GCC to compile code for a wide variety of processors: AVRs, MSP430s, ARMs of all sizes, PowerPC - you name it and there's probably a GCC compiler for it. Additionally, the development tools discussed here have been adapted to a wide variety of embedded systems. If you've developed code before but never been able to break away from the chains of an IDE then this is the tutorial for you. I've found that the Unix approach to developing code produces efficient programmers with more autonomy and a broader understanding of all the various pieces that contribute to turning code into useful programs. In addition, my goal with this whole series is to teach the basics of a Unix-like development environment. While there are many other tutorials out there covering roughly similar ground, I hope that you (a novice with some background in programming) find this tutorial to be more useful and approachable than other tutorials. Specifically, how to use GCC to compile a C program and how to write a makefile to automate the process. In this article, I discuss how to use those tools we installed last time.
#HOW TO MAKE MAKEFILE FOR C PROGRAM INSTALL#
Step 0 discussed how to install GCC and the make utility with the expectation of writing and compiling your first C program.
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If either of these changes, execute the line gcc -o main main.o util.o to recreate main. The final result of the makefile should always go on line 1, which in this makefile says that the file main is dependent on main.o and util.o. Note that the final executable produced by the whole makefile is main, on line 1 in the makefile. If either of these two files changes, the following executable line(s) should be executed to recreate main.o. For example, main.o: main.c util.h says that the file main.o is dependent on the files main.c and util.h. A dependency line says that some file is dependent on some other set of files.
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The lines preceded by a tab are executable lines, which can contain any valid UNIX command. The lines appearing flush left are dependency lines. This makefile contains two types of lines.