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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"><html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content= "application/xhtml+xml; charset=iso-8859-1" /> <title> 5.3. Build Variables </title> <link rel="stylesheet" href="../stylesheets/lfs.css" type="text/css" /> <meta name="generator" content="DocBook XSL Stylesheets V1.69.1" /> <link rel="stylesheet" href="../stylesheets/lfs-print.css" type= "text/css" media="print" /> </head> <body id="lfs" class="CLFS-SVN-20060417-Sparc64-Multilib"> <div class="navheader"> <div class="headertitles"> <h4> Cross-Compiled Linux From Scratch - Version CLFS-SVN-20060417-Sparc64-Multilib </h4> <h3> Chapter 5. Constructing Cross-Compile Tools </h3> </div> <ul class="headerlinks"> <li class="prev"> <a accesskey="p" href="cflags.html" title="Build CFLAGS">Prev</a> <p> Build CFLAGS </p> </li> <li class="next"> <a accesskey="n" href="flags.html" title="Build Flags">Next</a> <p> Build Flags </p> </li> <li class="up"> <a accesskey="u" href="chapter.html" title= "Chapter 5. Constructing Cross-Compile Tools">Up</a>. </li> <li class="home"> <a accesskey="h" href="../index.html" title= "Cross-Compiled Linux From Scratch - Version CLFS-SVN-20060417-Sparc64-Multilib"> Home</a> </li> </ul> </div> <div class="sect1" lang="en" xml:lang="en"> <div class="titlepage"> <h1 class="sect1"> 5.3. Build Variables </h1> </div> <h4> <a id="id3658450" name="id3658450"></a>Setting Host and Target </h4> <p> During the building of the cross-compile tools you will need to set a few variables that will be dependent on your particular needs. The first variable will be the triplet of the <tt class="envar">HOST</tt> machine. You will need to set the <tt class="envar">CHOST</tt> triplet to match your particular needs. To set this information you can issue the following command: </p> <pre class="userinput"><kbd class="command">export LFS_HOST="`echo ${MACHTYPE} | sed -e 's/unknown/cross/g' -e 's/-pc-/-cross-/g'`"</kbd></pre> <p> Now you will need to set the target triplet for the target architecture. You can do this by running the same command as above, just running it on the target machine. If you can't run the command on the target machine, you can use the table at the bottom of this page. Set the command using the method listed below: </p> <pre class="userinput"><kbd class="command">export LFS_TARGET="sparc64-unknown-linux-gnu"</kbd></pre> <p> Now we will set our Target Triplet for 32 Bits: </p> <pre class="userinput"><kbd class="command">export LFS_TARGET32="sparcv9-unknown-linux-gnu"</kbd></pre> <h4> <a id="id3658668" name="id3658668"></a>Copy settings to Environment </h4> <p> Now we will add these to <tt class="filename">~/.bashrc</tt>, just in case you have to exit and restart building later: </p> <pre class="userinput"><kbd class="command">echo export LFS_HOST=\""${LFS_HOST}\"" >> ~/.bashrcecho export LFS_TARGET=\""${LFS_TARGET}\"" >> ~/.bashrcecho export LFS_TARGET32=\""${LFS_TARGET32}\"" >> ~/.bashrc</kbd></pre> </div> <div class="navfooter"> <ul> <li class="prev"> <a accesskey="p" href="cflags.html" title="Build CFLAGS">Prev</a> <p> Build CFLAGS </p> </li> <li class="next"> <a accesskey="n" href="flags.html" title="Build Flags">Next</a> <p> Build Flags </p> </li> <li class="up"> <a accesskey="u" href="chapter.html" title= "Chapter 5. Constructing Cross-Compile Tools">Up</a>. </li> <li class="home"> <a accesskey="h" href="../index.html" title= "Cross-Compiled Linux From Scratch - Version CLFS-SVN-20060417-Sparc64-Multilib"> Home</a>. </li> </ul> </div> </body></html>⌨️ 快捷键说明
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