| @c Copyright (C) 1988, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001 Free Software Foundation, Inc. |
| @c This is part of the GCC manual. |
| @c For copying conditions, see the file gcc.texi. |
| |
| @node Configuration Files |
| @chapter Files Created by @code{configure} |
| |
| Here we spell out what files will be set up by @code{configure}. Normally |
| you need not be concerned with these files. |
| |
| @itemize @bullet |
| @item |
| A file named @file{config.h} is created that contains a @samp{#include} |
| of the top-level config file for the machine you will run the compiler |
| on (@pxref{Config}). This file is responsible for defining information |
| about the host machine. It includes @file{tm.h}. |
| |
| The top-level config file is located in the subdirectory @file{config}. |
| Its name is always @file{xm-@var{something}.h}; usually |
| @file{xm-@var{machine}.h}, but there are some exceptions. |
| |
| If your system does not support symbolic links, you might want to |
| set up @file{config.h} to contain a @samp{#include} command which |
| refers to the appropriate file. |
| |
| @item |
| A file named @file{tconfig.h} is created which includes the top-level config |
| file for your target machine. This is used for compiling certain |
| programs to run on that machine. |
| |
| @item |
| A file named @file{tm.h} is created which includes the |
| machine-description macro file for your target machine. It should be in |
| the subdirectory @file{config} and its name is often |
| @file{@var{machine}.h}. |
| |
| @item |
| The command file @file{configure} also constructs the file |
| @file{Makefile} by adding some text to the template file |
| @file{Makefile.in}. The additional text comes from files in the |
| @file{config} directory, named @file{t-@var{target}} and |
| @file{x-@var{host}}. If these files do not exist, it means nothing |
| needs to be added for a given target or host. |
| @end itemize |