How to build gcc from source

Building GCC from source involves the following sequence of steps:

1. choose a GCC version (and version of dependencies)
2. obtain source tarballs and unpack into appropriate directories.
3. create a clean build environment.
4. configure the source code.
5. compile the source code.
6. install the built artefacts.
7. usage.

1. How do I compile GCC?
2. Can you design your own compiler?
3. Where is gcc build directory?
4. Can we compile C++ code with GCC?
5. Is GCC only a compiler?
6. Does GCC support cross-compilation?
7. Can GCC cross-compile to Windows?
8. Why is cross compiling so hard?
9. What are the four steps of compiling?
10. What is build vs host vs target?

How do I compile GCC?

To make sure GCC is installed, run the command gcc --version. Type gcc source_file. c -o program_name and press Enter to compile your source code. Replace source_file with the name of your source code file, and program_name with the name you'd like to give your compiled program.

Can you design your own compiler?

It's totally OK to write a compiler in Python or Ruby or whatever language is easy for you. Use simple algorithms you understand well. The first version does not have to be fast, or efficient, or feature-complete. It only needs to be correct enough and easy to modify.

Where is gcc build directory?

You need to use the which command to locate c compiler binary called gcc. Usually, it is installed in /usr/bin directory.

Can we compile C++ code with GCC?

GCC stands for GNU Compiler Collections which is used to compile mainly C and C++ language. It can also be used to compile Objective C and Objective C++.

Is GCC only a compiler?

The GNU Compiler Collection, commonly known as GCC, is a set of compilers and development tools available for Linux, Windows, various BSDs, and a wide assortment of other operating systems. It includes support primarily for C and C++ and includes Objective-C, Ada, Go, Fortran, and D.

Does GCC support cross-compilation?

GCC, a free software collection of compilers, can be set up to cross compile. It supports many platforms and languages.

Can GCC cross-compile to Windows?

You can cross-compile and -link Windows applications with it. There's a tutorial here at the Code::Blocks forum. Mind that the command changes to x86_64-w64-mingw32-gcc-win32 , for example.

Why is cross compiling so hard?

"building a cross-compiler is significantly harder than building a compiler that targets the platform it runs on." The problem exists due to the way libraries are built and accessed. In the normal situation all the libraries are located in a specific spot, and are used by all apps on that system.

What are the four steps of compiling?

Compilation process in C involves four steps: pre-processing, compiling, assembling, and linking. The preprocessor tool helps in comments removal, macros expansion, file inclusion, and conditional compilation. These commands are executed in the first step of the compilation process.

What is build vs host vs target?

build machine is the computer that is doing the actual compiling. host machine is the machine on which the compiled binary will run. target machine is the machine on which the compiled binary's output will run, only meaningful if the program produces machine-specific output.