|
- <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
- <html>
- <!-- Copyright (C) 1988-2020 Free Software Foundation, Inc.
-
- Permission is granted to copy, distribute and/or modify this document
- under the terms of the GNU Free Documentation License, Version 1.3 or
- any later version published by the Free Software Foundation; with the
- Invariant Sections being "Funding Free Software", the Front-Cover
- Texts being (a) (see below), and with the Back-Cover Texts being (b)
- (see below). A copy of the license is included in the section entitled
- "GNU Free Documentation License".
-
- (a) The FSF's Front-Cover Text is:
-
- A GNU Manual
-
- (b) The FSF's Back-Cover Text is:
-
- You have freedom to copy and modify this GNU Manual, like GNU
- software. Copies published by the Free Software Foundation raise
- funds for GNU development. -->
- <!-- Created by GNU Texinfo 6.5, http://www.gnu.org/software/texinfo/ -->
- <head>
- <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
- <title>Header Dirs (GNU Compiler Collection (GCC) Internals)</title>
-
- <meta name="description" content="Header Dirs (GNU Compiler Collection (GCC) Internals)">
- <meta name="keywords" content="Header Dirs (GNU Compiler Collection (GCC) Internals)">
- <meta name="resource-type" content="document">
- <meta name="distribution" content="global">
- <meta name="Generator" content="makeinfo">
- <link href="index.html#Top" rel="start" title="Top">
- <link href="Option-Index.html#Option-Index" rel="index" title="Option Index">
- <link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
- <link href="index.html#Top" rel="up" title="Top">
- <link href="Type-Information.html#Type-Information" rel="next" title="Type Information">
- <link href="Collect2.html#Collect2" rel="prev" title="Collect2">
- <style type="text/css">
- <!--
- a.summary-letter {text-decoration: none}
- blockquote.indentedblock {margin-right: 0em}
- blockquote.smallindentedblock {margin-right: 0em; font-size: smaller}
- blockquote.smallquotation {font-size: smaller}
- div.display {margin-left: 3.2em}
- div.example {margin-left: 3.2em}
- div.lisp {margin-left: 3.2em}
- div.smalldisplay {margin-left: 3.2em}
- div.smallexample {margin-left: 3.2em}
- div.smalllisp {margin-left: 3.2em}
- kbd {font-style: oblique}
- pre.display {font-family: inherit}
- pre.format {font-family: inherit}
- pre.menu-comment {font-family: serif}
- pre.menu-preformatted {font-family: serif}
- pre.smalldisplay {font-family: inherit; font-size: smaller}
- pre.smallexample {font-size: smaller}
- pre.smallformat {font-family: inherit; font-size: smaller}
- pre.smalllisp {font-size: smaller}
- span.nolinebreak {white-space: nowrap}
- span.roman {font-family: initial; font-weight: normal}
- span.sansserif {font-family: sans-serif; font-weight: normal}
- ul.no-bullet {list-style: none}
- -->
- </style>
-
-
- </head>
-
- <body lang="en">
- <a name="Header-Dirs"></a>
- <div class="header">
- <p>
- Next: <a href="Type-Information.html#Type-Information" accesskey="n" rel="next">Type Information</a>, Previous: <a href="Collect2.html#Collect2" accesskey="p" rel="prev">Collect2</a>, Up: <a href="index.html#Top" accesskey="u" rel="up">Top</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Option-Index.html#Option-Index" title="Index" rel="index">Index</a>]</p>
- </div>
- <hr>
- <a name="Standard-Header-File-Directories"></a>
- <h2 class="chapter">22 Standard Header File Directories</h2>
-
- <p><code>GCC_INCLUDE_DIR</code> means the same thing for native and cross. It is
- where GCC stores its private include files, and also where GCC
- stores the fixed include files. A cross compiled GCC runs
- <code>fixincludes</code> on the header files in <samp>$(tooldir)/include</samp>.
- (If the cross compilation header files need to be fixed, they must be
- installed before GCC is built. If the cross compilation header files
- are already suitable for GCC, nothing special need be done).
- </p>
- <p><code>GPLUSPLUS_INCLUDE_DIR</code> means the same thing for native and cross. It
- is where <code>g++</code> looks first for header files. The C++ library
- installs only target independent header files in that directory.
- </p>
- <p><code>LOCAL_INCLUDE_DIR</code> is used only by native compilers. GCC
- doesn’t install anything there. It is normally
- <samp>/usr/local/include</samp>. This is where local additions to a packaged
- system should place header files.
- </p>
- <p><code>CROSS_INCLUDE_DIR</code> is used only by cross compilers. GCC
- doesn’t install anything there.
- </p>
- <p><code>TOOL_INCLUDE_DIR</code> is used for both native and cross compilers. It
- is the place for other packages to install header files that GCC will
- use. For a cross-compiler, this is the equivalent of
- <samp>/usr/include</samp>. When you build a cross-compiler,
- <code>fixincludes</code> processes any header files in this directory.
- </p>
-
-
-
- </body>
- </html>
|