6.3.1 Subdirectories of gcc

The gcc directory contains the following subdirectories:

language

Subdirectories for various languages. Directories containing a file config-lang.in are language subdirectories. The contents of the subdirectories c (for C), cp (for C++), objc (for Objective-C), objcp (for Objective-C++), and lto (for LTO) are documented in this manual (see Passes and Files of the Compiler); those for other languages are not. See Anatomy of a Language Front End, for details of the files in these directories.

common

Source files shared between the compiler drivers (such as gcc) and the compilers proper (such as cc1). If an architecture defines target hooks shared between those places, it also has a subdirectory in common/config. See Target Structure.

config

Configuration files for supported architectures and operating systems. See Anatomy of a Target Back End, for details of the files in this directory.

doc

Texinfo documentation for GCC, together with automatically generated man pages and support for converting the installation manual to HTML. See Documentation.

ginclude

System headers installed by GCC, mainly those required by the C standard of freestanding implementations. See Headers Installed by GCC, for details of when these and other headers are installed.

po

Message catalogs with translations of messages produced by GCC into various languages, language.po. This directory also contains gcc.pot, the template for these message catalogues, exgettext, a wrapper around gettext to extract the messages from the GCC sources and create gcc.pot, which is run by ‘make gcc.pot’, and EXCLUDES, a list of files from which messages should not be extracted.

testsuite

The GCC testsuites (except for those for runtime libraries). See Testsuites.