source: chapter06/libffi.xml@ 2c53f52

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Last change on this file since 2c53f52 was 2c53f52, checked in by Bruce Dubbs <bdubbs@…>, 3 years ago

Fix hard coded version of gcc in libffi

git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@11477 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689

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File size: 3.7 KB
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1<?xml version="1.0" encoding="ISO-8859-1"?>
2<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
3 "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
4 <!ENTITY % general-entities SYSTEM "../general.ent">
5 %general-entities;
6]>
7
8<sect1 id="ch-system-libffi" role="wrap">
9 <?dbhtml filename="libffi.html"?>
10
11 <sect1info condition="script">
12 <productname>libffi</productname>
13 <productnumber>&libffi-version;</productnumber>
14 <address>&libffi-url;</address>
15 </sect1info>
16
17 <title>Libffi-&libffi-version;</title>
18
19 <indexterm zone="ch-system-libffi">
20 <primary sortas="a-libffi">libffi</primary>
21 </indexterm>
22
23 <sect2 role="package">
24 <title/>
25
26 <para>The Libffi library provides a portable, high level programming
27 interface to various calling conventions. This allows a programmer to call
28 any function specified by a call interface description at run time.</para>
29
30 <segmentedlist>
31 <segtitle>&buildtime;</segtitle>
32 <segtitle>&diskspace;</segtitle>
33
34 <seglistitem>
35 <seg>&libffi-ch6-sbu;</seg>
36 <seg>&libffi-ch6-du;</seg>
37 </seglistitem>
38 </segmentedlist>
39
40 </sect2>
41
42 <sect2 role="installation">
43 <title>Installation of Libffi</title>
44
45 <para>Modify the Makefile to install headers into the standard
46 <filename class="directory">/usr/include</filename> directory instead of
47 <filename class="directory">/usr/lib/libffi-3.2.1/include</filename>.</para>
48
49<screen><userinput remap="pre">sed -e '/^includesdir/ s/$(libdir).*$/$(includedir)/' \
50 -i include/Makefile.in
51
52sed -e '/^includedir/ s/=.*$/=@includedir@/' \
53 -e 's/^Cflags: -I${includedir}/Cflags:/' \
54 -i libffi.pc.in</userinput></screen>
55
56 <para>Prepare libffi for compilation:</para>
57
58<screen><userinput remap="configure">./configure --prefix=/usr --disable-static --with-gcc-arch=native</userinput></screen>
59
60 <variablelist>
61 <title>The meaning of the configure option:</title>
62
63 <varlistentry>
64 <term><parameter>--with-gcc-arch=native</parameter></term>
65 <listitem>
66 <para>Ensure gcc optimizes for the current system. If this
67 is not specified, the system is guessed and the code generated
68 may not be correct for some systems. If the generated code
69 will be copied from the native system to a less capable
70 system, use the less capable system as a parameter. For details
71 about alternative system types, see <ulink
72 url='https://gcc.gnu.org/onlinedocs/gcc-&gcc-version;/gcc/x86-Options.html'>
73 the x86 options in the gcc manual</ulink>.</para>
74 </listitem>
75 </varlistentry>
76
77 </variablelist>
78
79 <para>Compile the package:</para>
80
81<screen><userinput remap="make">make</userinput></screen>
82
83 <para>To test the results, issue:</para>
84
85<screen><userinput remap="test">make check</userinput></screen>
86
87 <para>Install the package:</para>
88
89<screen><userinput remap="install">make install</userinput></screen>
90
91 </sect2>
92
93 <sect2 id="contents-libffi" role="content">
94 <title>Contents of Libffi</title>
95
96 <segmentedlist>
97 <segtitle>Installed library</segtitle>
98
99 <seglistitem>
100 <seg>libffi.so</seg>
101 </seglistitem>
102 </segmentedlist>
103
104 <variablelist>
105 <bridgehead renderas="sect3">Short Descriptions</bridgehead>
106 <?dbfo list-presentation="list"?>
107 <?dbhtml list-presentation="table"?>
108
109 <varlistentry id="libffi">
110 <term><filename class="libraryfile">libffi</filename></term>
111 <listitem>
112 <para>contains the libffi API functions.</para>
113 <indexterm zone="ch-system-libffi">
114 <primary sortas="c-libffi">libffi</primary>
115 </indexterm>
116 </listitem>
117 </varlistentry>
118 </variablelist>
119
120 </sect2>
121
122</sect1>
123
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