diff options
author | Bruce Dubbs <bdubbs@linuxfromscratch.org> | 2020-06-16 11:56:28 +0000 |
---|---|---|
committer | Bruce Dubbs <bdubbs@linuxfromscratch.org> | 2020-06-16 11:56:28 +0000 |
commit | 675606bde2ba53946537b42a5aa576692a311621 (patch) | |
tree | af20c20ce3841c16b24d0b9903af6878a4a0f5a6 /chapter07/libstdc++-pass2.xml | |
parent | 560065f976e371779928dbf8b9428217f3f57331 (diff) | |
parent | 1cd59612d00603c9ce773ad821a15d20bc4fa0b7 (diff) |
Split Chapter 5 into three separate chapters.
Implement a new method of cross-building the LFS tool chain
and other tools to simplify the method of isolating the
new system from the original host. This will be the start of
LFS-10.0.
Move old trunk/BOOK to branches/old-trunk.
git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@11946 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689
Diffstat (limited to 'chapter07/libstdc++-pass2.xml')
-rw-r--r-- | chapter07/libstdc++-pass2.xml | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/chapter07/libstdc++-pass2.xml b/chapter07/libstdc++-pass2.xml new file mode 100644 index 000000000..015d8d8ea --- /dev/null +++ b/chapter07/libstdc++-pass2.xml @@ -0,0 +1,110 @@ +<?xml version="1.0" encoding="ISO-8859-1"?> +<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN" + "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [ + <!ENTITY % general-entities SYSTEM "../general.ent"> + %general-entities; +]> + +<sect1 id="ch-tools-libstdcpp-pass2" role="wrap"> + <?dbhtml filename="gcc-libstdc++-pass2.html"?> + + <sect1info condition="script"> + <productname>gcc-libstdc++</productname> + <productnumber>&gcc-version;</productnumber> + <address>&gcc-url;</address> + </sect1info> + + <title>Libstdc++ from GCC-&gcc-version;, Pass 2</title> + + <indexterm zone="ch-tools-libstdcpp-pass2"> + <primary sortas="a-GCC">GCC</primary> + <secondary>tools, libstdc++ pass 2</secondary> + </indexterm> + + <sect2 role="package"> + <title/> + + <para>When building <xref linkend="ch-tools-gcc-pass2"/> we had to defer + the installation of the C++ standard library because no suitable compiler + was available to compile it. We could not use the compiler built in that + section because it is a native compiler and should not be used outside of + chroot and risks polluting the libraries with some host components.</para> + + <segmentedlist> + <segtitle>&buildtime;</segtitle> + <segtitle>&diskspace;</segtitle> + + <seglistitem> + <seg>&libstdcpp-tmpp2-sbu;</seg> + <seg>&libstdcpp-tmpp2-du;</seg> + </seglistitem> + </segmentedlist> + + </sect2> + + <sect2 role="installation"> + <title>Installation of Target Libstdc++</title> + + <note> + <para><application>Libstdc++</application> is part of the GCC sources. + You should first unpack the GCC tarball and change to the + <filename>gcc-&gcc-version;</filename> directory.</para> + </note> + + <para>Create a link which exists when building libstdc++ in the gcc tree:</para> + +<screen><userinput remap="pre">ln -s gthr-posix.h libgcc/gthr-default.h</userinput></screen> + + <para>Create a separate build directory for libstdc++ and enter it:</para> + +<screen><userinput remap="pre">mkdir -v build +cd build</userinput></screen> + + <para>Prepare libstdc++ for compilation:</para> + +<screen><userinput remap="configure">../libstdc++-v3/configure \ + CXXFLAGS="-g -O2 -D_GNU_SOURCE" \ + --prefix=/usr \ + --disable-multilib \ + --disable-nls \ + --disable-libstdcxx-pch</userinput></screen> + + <variablelist> + <title>The meaning of the configure options:</title> + + <varlistentry> + <term><parameter>CXXFLAGS="-g -O2 -D_GNU_SOURCE"</parameter></term> + <listitem> + <para>These flags are passed by the top level Makefile when doing + a full build of GCC.</para> + </listitem> + </varlistentry> + + <varlistentry> + <term><parameter>--disable-libstdcxx-pch</parameter></term> + <listitem> + <para>This switch prevents the installation of precompiled + include files, which are not needed at this stage.</para> + </listitem> + </varlistentry> + + </variablelist> + + <para>Compile libstdc++ by running:</para> + +<screen><userinput remap="make">make</userinput></screen> + + <para>Install the library:</para> + +<screen><userinput remap="install">make install</userinput></screen> + + </sect2> + + <sect2 role="content"> + <title/> + + <para>Details on this package are located in <xref linkend="contents-gcc" role="."/></para> + + </sect2> + +</sect1> |