1 | <?xml version="1.0" encoding="ISO-8859-1"?> |
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2 | <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN" |
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3 | "http://www.oasis-open.org/docbook/xml/4.5/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-system-libtool-32" role="wrap"> |
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9 | <?dbhtml filename="libtool.html"?> |
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10 | |
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11 | <title>Libtool-&libtool-version; 32 Bit Libraries</title> |
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12 | |
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13 | <!-- with the introduction of an LDEMULATION on make check, to fix a test |
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14 | failure which has appeared for unknown reasons, this text is now specific |
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15 | to mips -o32. --> |
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16 | |
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17 | <indexterm zone="ch-system-libtool-32"> |
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18 | <primary sortas="a-Libtool">Libtool</primary> |
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19 | <secondary>32 Bit</secondary> |
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20 | </indexterm> |
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21 | |
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22 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" |
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23 | href="../common/libtool.xml" |
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24 | xpointer="xpointer(//*[@role='package'])"/> |
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25 | |
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26 | <sect2 role="installation"> |
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27 | <title>Installation of Libtool</title> |
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28 | |
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29 | <para os="a1">The following <filename>config.cache</filename> entry |
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30 | overrides the default search path, which does not take |
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31 | multilib into account:</para> |
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32 | |
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33 | <screen os="a2"><userinput>echo "lt_cv_sys_dlsearch_path='/lib /usr/lib /usr/local/lib /opt/lib'" > config.cache</userinput></screen> |
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34 | |
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35 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" |
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36 | href="../common/libtool.xml" |
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37 | xpointer="xpointer(//*[@os='a'])"/> |
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38 | |
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39 | <screen os="b"><userinput>CC="gcc ${BUILD32}" ./configure \ |
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40 | --prefix=/usr \ |
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41 | --cache-file=config.cache</userinput></screen> |
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42 | |
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43 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" |
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44 | href="../common/libtool.xml" |
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45 | xpointer="xpointer(//*[@os='c'])"/> |
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46 | |
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47 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" |
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48 | href="../common/libtool.xml" |
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49 | xpointer="xpointer(//*[@os='d'])"/> |
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50 | |
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51 | <para os="e">To test the results, first identify whether you are on a big- or |
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52 | little-endian machine. SGI machines are usually big-endian, Cobalt are |
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53 | usually little-endian. If in doubt you can <command>echo ${MACHTYPE} | grep 'el-' |
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54 | </command>- this will match a little-endian machine.</para> |
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55 | |
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56 | <para os="e2">To test on a little-endian machine issue: |
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57 | <userinput>make LDEMULATION=elf32ltsmip check</userinput>.</para> |
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58 | |
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59 | <para os="e1">To test on a big-endian machine issue: |
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60 | <userinput>make LDEMULATION=elf32btsmip check</userinput>.</para> |
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61 | |
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62 | <variablelist os="c"> |
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63 | <title>The meaning of the override on make check:</title> |
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64 | |
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65 | <varlistentry> |
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66 | <term><parameter>LDEMULATION=[emulation]</parameter></term> |
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67 | <!-- <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" |
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68 | href="../ppc64/libtool.xml" |
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69 | xpointer="xpointer(//*[@os='c2'])"/> --> |
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70 | <listitem os="c2"> |
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71 | <para>Libtool tends to do the wrong thing when building for multilib, |
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72 | at least on the non-default size(s) of architecture. The causes of |
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73 | these errors are not well understood and they can appear, or disappear, |
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74 | as a result of apparently innocuous other changes in the build. In |
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75 | this version of the book, one of the tests (pdemo-make) fails to link |
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76 | because it tries to link the 32-bit objects against 64-bit system |
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77 | libraries. This option enables the test to succeed without impacting |
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78 | the other tests (compare the common alternative fixes of |
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79 | <literal>LD="gcc ${BUILD32}"</literal> which causes far fewer tests |
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80 | to be executed, and configuring with |
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81 | <literal>LDFLAGS='-L/lib -L/usr/lib'</literal> which in this case |
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82 | causes other tests to fail.)</para> |
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83 | </listitem> |
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84 | </varlistentry> |
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85 | |
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86 | </variablelist> |
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87 | |
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88 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" |
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89 | href="../common/libtool.xml" |
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90 | xpointer="xpointer(//*[@os='f'])"/> |
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91 | |
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92 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" |
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93 | href="../common/libtool.xml" |
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94 | xpointer="xpointer(//*[@os='g'])"/> |
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95 | |
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96 | <para os="m1">Prepare <filename>libtool</filename> to be wrapped by |
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97 | the multiarch wrapper. Libtool by itself is not multilib aware:</para> |
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98 | |
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99 | <screen os="m2"><userinput>mv -v /usr/bin/libtool{,-32}</userinput></screen> |
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100 | |
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101 | </sect2> |
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102 | |
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103 | <sect2 role="content"> |
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104 | <title/> |
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105 | |
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106 | <para>Details on this package are located in <xref |
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107 | linkend="contents-libtool" role="."/></para> |
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108 | |
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109 | </sect2> |
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110 | |
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111 | </sect1> |
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