| 1 | <sect1 id="ch06-gcc-2953">
|
|---|
| 2 | <title>Installing GCC-2.95.3</title>
|
|---|
| 3 | <?dbhtml filename="gcc-2953.html" dir="chapter06"?>
|
|---|
| 4 |
|
|---|
| 5 | <screen>Estimated build time: &gcc-2953-time;
|
|---|
| 6 | Estimated required disk space: &gcc-2953-compsize;</screen>
|
|---|
| 7 |
|
|---|
| 8 |
|
|---|
| 9 | <sect2><title> </title><para> </para></sect2>
|
|---|
| 10 |
|
|---|
| 11 | <sect2>
|
|---|
| 12 | <title>Installation of GCC</title>
|
|---|
| 13 |
|
|---|
| 14 | <para>This package is known to behave badly when you have changed its
|
|---|
| 15 | default optimization flags (including the -march and -mcpu options).
|
|---|
| 16 | Therefore, if you have defined any environment variables that override
|
|---|
| 17 | default optimizations, such as CFLAGS and CXXFLAGS, we recommend unsetting
|
|---|
| 18 | or modifying them when building GCC.</para>
|
|---|
| 19 |
|
|---|
| 20 | <para>This is an older release of GCC which we are going to install for the
|
|---|
| 21 | purpose of compiling the Linux kernel in <xref linkend="chapter08"/>. This
|
|---|
| 22 | version is recommended
|
|---|
| 23 | by the kernel developers when you need absolute stability. Later versions of
|
|---|
| 24 | GCC have not received as much testing for Linux kernel compilation. Using a
|
|---|
| 25 | later version is likely to work, however, we recommend adhering to the kernel
|
|---|
| 26 | developer's advice and using the version here to compile your kernel.</para>
|
|---|
| 27 |
|
|---|
| 28 | <note><para>We don't install the C++ compiler or libraries here. However, there
|
|---|
| 29 | may be reasons why you would want to install them. More information can be found
|
|---|
| 30 | at <ulink url="&blfs-root;view/stable/general/gcc2.html"/>.</para></note>
|
|---|
| 31 |
|
|---|
| 32 | <para>We'll install this older release of GCC into the non-standard prefix of
|
|---|
| 33 | <filename class="directory">/opt</filename> so as to avoid interfering with
|
|---|
| 34 | the system GCC already installed in <filename class="directory">/usr</filename>
|
|---|
| 35 | .</para>
|
|---|
| 36 |
|
|---|
| 37 | <para>Apply the patches and make a small adjustment:</para>
|
|---|
| 38 |
|
|---|
| 39 | <screen><userinput>patch -Np1 -i ../&gcc-2953-patch;
|
|---|
| 40 | patch -Np1 -i ../&gcc-2953-no-fixinc-patch;
|
|---|
| 41 | patch -Np1 -i ../&gcc-2953-returntype-fix-patch;
|
|---|
| 42 | echo timestamp > gcc/cstamp-h.in</userinput></screen>
|
|---|
| 43 |
|
|---|
| 44 | <para>The GCC documentation recommends building GCC outside of the source
|
|---|
| 45 | directory in a dedicated build directory:</para>
|
|---|
| 46 |
|
|---|
| 47 | <screen><userinput>mkdir ../gcc-2-build
|
|---|
| 48 | cd ../gcc-2-build</userinput></screen>
|
|---|
| 49 |
|
|---|
| 50 | <para>Compile and install the compiler:</para>
|
|---|
| 51 |
|
|---|
| 52 | <screen><userinput>../gcc-2.95.3/configure --prefix=/opt/gcc-2.95.3 \
|
|---|
| 53 | --enable-shared --enable-languages=c \
|
|---|
| 54 | --enable-threads=posix
|
|---|
| 55 | make bootstrap
|
|---|
| 56 | make install</userinput></screen>
|
|---|
| 57 |
|
|---|
| 58 | </sect2>
|
|---|
| 59 |
|
|---|
| 60 | </sect1>
|
|---|
| 61 |
|
|---|
