| 1 | <?xml version="1.0" encoding="ISO-8859-1"?>
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| 2 | <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN"
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| 3 | "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd" [
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| 4 | <!ENTITY % general-entities SYSTEM "../../general.ent">
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| 5 | %general-entities;
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| 6 | ]>
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| 7 |
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| 8 | <sect1 id="ch-cross-tools-introduction">
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| 9 | <?dbhtml filename="introduction.html"?>
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| 10 |
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| 11 | <title>Introduction</title>
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| 12 |
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| 13 | <para>This chapter shows you how to create cross platform tools.</para>
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| 14 |
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| 15 | <para>If for some reason you have to stop and come back later, remember
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| 16 | to use the <command>su - lfs</command> command, and it will setup the
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| 17 | build environment that you left.</para>
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| 18 |
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| 19 | <sect2>
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| 20 | <title>Common Notes</title>
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| 21 |
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| 22 | <important>
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| 23 | <para>Before issuing the build instructions for a package, the package
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| 24 | should be unpacked as user <systemitem class="username">lfs</systemitem>,
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| 25 | and a <command>cd</command> into the created directory should be
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| 26 | performed. The build instructions assume that the <command>bash</command>
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| 27 | shell is in use.</para>
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| 28 | </important>
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| 29 |
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| 30 | <para>Several of the packages are patched before compilation, but only
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| 31 | when the patch is needed to circumvent a problem. A patch is often needed
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| 32 | in both this and the next chapters, but sometimes in only one or the other.
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| 33 | Therefore, do not be concerned if instructions for a downloaded patch seem
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| 34 | to be missing. Warning messages about <emphasis>offset</emphasis> or
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| 35 | <emphasis>fuzz</emphasis> may also be encountered when applying a patch.
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| 36 | Do not worry about these warnings, as the patch was still successfully
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| 37 | applied.</para>
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| 38 |
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| 39 | <para>During the compilation of most packages, there will be several
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| 40 | warnings that scroll by on the screen. These are normal and can safely
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| 41 | be ignored. These warnings are as they appear—warnings about
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| 42 | deprecated, but not invalid, use of the C or C++ syntax. C standards
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| 43 | change fairly often, and some packages still use the older standard.
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| 44 | This is not a problem, but does prompt the warning.</para>
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| 45 |
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| 46 | <important>
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| 47 | <para>After installing each package, both in this and the next chapters,
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| 48 | delete its source and build directories, unless specifically instructed
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| 49 | otherwise. Deleting the sources prevents mis-configuration
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| 50 | when the same package is reinstalled later.</para>
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| 51 | </important>
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| 52 |
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| 53 | </sect2>
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| 54 |
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| 55 | </sect1>
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