| 1 | <sect2><title> </title><para> </para></sect2>
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| 2 |
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| 3 | <sect2><title>Installation of Binutils</title>
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| 4 |
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| 5 | <para>Now is an appropriate time to verify that your pseudo terminals (PTYs) are
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| 6 | working properly inside the chroot environment. We will again quickly check that
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| 7 | everything is set up correctly by performing a simple test:</para>
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| 8 |
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| 9 | <screen><userinput>expect -c "spawn ls"</userinput></screen>
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| 10 |
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| 11 | <para>If you receive the message:</para>
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| 12 |
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| 13 | <blockquote><screen>The system has no more ptys. Ask your system administrator to create more.</screen></blockquote>
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| 14 |
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| 15 | <para>Your chroot environment is not set up for proper PTY operation. In this
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| 16 | case there is no point in running the test suites for Binutils and GCC until you
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| 17 | are able to resolve the issue. Please refer back to <xref linkend="ch06-proc"/>
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| 18 | and <xref linkend="ch06-makedev"/> and perform the recommended steps to fix the
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| 19 | problem.</para>
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| 20 |
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| 21 | <note><para>The test suite for Binutils in this section is considered
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| 22 | <emphasis>critical</emphasis>. Our advice is to not skip it under any
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| 23 | circumstances.</para> </note>
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| 24 |
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| 25 | <para>This package is known to behave badly when you have changed its
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| 26 | default optimization flags (including the -march and -mcpu options).
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| 27 | Therefore, if you have defined any environment variables that override
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| 28 | default optimizations, such as CFLAGS and CXXFLAGS, we recommend unsetting
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| 29 | or modifying them when building Binutils.</para>
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| 30 |
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| 31 | <para>The Binutils documentation recommends building Binutils outside of the
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| 32 | source directory in a dedicated build directory:</para>
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| 33 |
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| 34 | <screen><userinput>mkdir ../binutils-build
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| 35 | cd ../binutils-build</userinput></screen>
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| 36 |
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| 37 | <para>Now prepare Binutils for compilation:</para>
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| 38 |
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| 39 | <screen><userinput>../binutils-&binutils-version;/configure \
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| 40 | --prefix=/usr --enable-shared</userinput></screen>
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| 41 |
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| 42 | <para>Compile the package:</para>
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| 43 |
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| 44 | <screen><userinput>make tooldir=/usr</userinput></screen>
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| 45 |
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| 46 | <para>Normally, the <emphasis>tooldir</emphasis> (the directory where the
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| 47 | executables end up) is set to $(exec_prefix)/$(target_alias), which expands
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| 48 | into, for example, <filename>/usr/i686-pc-linux-gnu</filename>. Since we only
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| 49 | build for our own system, we don't need this target specific directory in
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| 50 | <filename>/usr</filename>. That setup would be used if the system was used to
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| 51 | cross-compile (for example compiling a package on an Intel machine that
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| 52 | generates code that can be executed on PowerPC machines).</para>
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| 53 |
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| 54 | <para>Test the results:</para>
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| 55 |
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| 56 | <screen><userinput>make check</userinput></screen>
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| 57 |
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| 58 | <para>The test suite notes from <xref linkend="ch05-binutils-pass2"/> are still
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| 59 | very much appropriate here. Be sure to refer back there should you have any
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| 60 | doubts.</para>
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| 61 |
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| 62 | <para>Install the package:</para>
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| 63 |
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| 64 | <screen><userinput>make tooldir=/usr install</userinput></screen>
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| 65 |
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| 66 | <para>Install the <emphasis>libiberty</emphasis> header file that is needed by
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| 67 | some packages:</para>
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| 68 |
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| 69 | <screen><userinput>cp ../binutils-&binutils-version;/include/libiberty.h /usr/include</userinput></screen>
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| 70 |
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| 71 | </sect2>
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| 72 |
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