| 123456789101112131415161718192021222324252627282930313233343536 |
- <sect2><title> </title><para> </para></sect2>
- <sect2>
- <title>Installation of GCC</title>
- <para>This package is known to behave badly when you have changed its
- default optimization flags (including the -march and -mcpu options).
- Therefore, if you have defined any environment variables that override
- default optimizations, such as CFLAGS and CXXFLAGS, we recommend unsetting
- or modifying them when building GCC.</para>
- <para>This is an older release of GCC which we are going to install for the
- purpose of compiling the Linux kernel in Chapter 8. This version is recommended
- by the kernel developers when you need absolute stability. Later versions of
- GCC have not received as much testing for Linux kernel compilation. Using a
- later version is likely to work, however, we recommend adhering to the kernel
- developer's advice and using the version here to compile your kernel.</para>
- <para>We'll install this older release of GCC into the non-standard prefix of
- <filename class="directory">/opt</filename> so as to avoid interfering with
- the system GCC already installed in <filename class="directory">/usr</filename>
- .</para>
- <para><screen><userinput>patch -Np1 -i ../gcc-2.95.3-2.patch
- patch -Np1 -i ../gcc-2.95.3-returntype-fix.patch
- echo timestamp > gcc/cstamp-h.in
- mkdir ../gcc-2-build
- cd ../gcc-2-build
- ../gcc-2.95.3/configure --prefix=/opt/gcc-2.95.3 \
- --enable-shared --enable-languages=c \
- --enable-threads=posix
- make bootstrap
- make install</userinput></screen></para>
- </sect2>
|
