glfs/general/graphlib/freetype2.xml

<?xml version="1.0" encoding="UTF-8"?>
<!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;

  <!ENTITY freetype2-download-http "&sourceforge-dl;/freetype/freetype-&freetype2-version;.tar.xz">
  <!ENTITY freetype2-download-ftp  " ">
  <!ENTITY freetype2-md5sum        "1f625f0a913c449551b1e3790a1817d7">
  <!ENTITY freetype2-size          "2.4 MB">
  <!ENTITY freetype2-buildsize     "33 MB (with additional documentation)">
  <!ENTITY freetype2-time          "0.2 SBU (with additional documentation)">

  <!ENTITY freetype2-doc-version   "&freetype2-version;">
  <!ENTITY freetype2-doc-download-http "&sourceforge-dl;/freetype/freetype-doc-&freetype2-doc-version;.tar.xz">
  <!ENTITY freetype2-doc-download-ftp  " ">
  <!ENTITY freetype2-doc-md5sum        "e6466f08934ebf2d7f711b0464d7a6cf">
  <!ENTITY freetype2-doc-size          "2.1 MB">
]>

<sect1 id="freetype2" xreflabel="FreeType-&freetype2-version;">
  <?dbhtml filename="freetype2.html"?>


  <title>FreeType-&freetype2-version;</title>

  <indexterm zone="freetype2">
    <primary sortas="a-FreeType">FreeType</primary>
  </indexterm>

  <sect2 role="package">
    <title>Introduction to FreeType2</title>

    <para>
      The <application>FreeType2</application> package contains
      a library which allows applications to properly render
      <application>TrueType</application> fonts.
    </para>

    &lfs121_checked;

    <bridgehead renderas="sect3">Package Information</bridgehead>
    <itemizedlist spacing="compact">
      <listitem>
        <para>
          Download (HTTP): <ulink url="&freetype2-download-http;"/>
        </para>
      </listitem>
      <listitem>
        <para>
          Download (FTP): <ulink url="&freetype2-download-ftp;"/>
        </para>
      </listitem>
      <listitem>
        <para>
          Download MD5 sum: &freetype2-md5sum;
        </para>
      </listitem>
      <listitem>
        <para>
          Download size: &freetype2-size;
        </para>
      </listitem>
      <listitem>
        <para>
          Estimated disk space required: &freetype2-buildsize;
        </para>
      </listitem>
      <listitem>
        <para>
          Estimated build time: &freetype2-time;
        </para>
      </listitem>
    </itemizedlist>

    <bridgehead renderas="sect3">Additional Downloads</bridgehead>
    <itemizedlist spacing="compact">
      <title>Additional Documentation</title>
      <listitem>
        <para>
          Download (HTTP): <ulink url="&freetype2-doc-download-http;"/>
        </para>
      </listitem>
      <listitem>
        <para>
          Download MD5 sum: &freetype2-doc-md5sum;
        </para>
      </listitem>
      <listitem>
        <para>
          Download size: &freetype2-doc-size;
        </para>
      </listitem>
    </itemizedlist>

    <bridgehead renderas="sect3">FreeType2 Dependencies</bridgehead>

    <bridgehead renderas="sect4">Recommended</bridgehead>
    <para role="recommended">
      <xref linkend="harfbuzz"/>
      (first, install without it, after it is installed, reinstall
      <xref linkend="freetype2"/>),
      <xref linkend="libpng"/>, and
      <xref linkend="which"/>
    </para>

    <bridgehead renderas="sect4">Optional</bridgehead>
    <para role="optional">
      <xref linkend="brotli"/> and
      <xref linkend="librsvg"/>
    </para>

    <bridgehead renderas="sect4">Optional (for documentation)</bridgehead>
    <para role="optional">
      <ulink url="https://pypi.org/project/docwriter/">docwriter</ulink>
    </para>

  </sect2>

  <sect2 role="installation">
    <title>Installation of FreeType2</title>

    <para>
      If you downloaded the additional documentation, unpack it into the
      source tree using the following command:
    </para>

<screen><userinput>tar -xf ../freetype-doc-&freetype2-doc-version;.tar.xz --strip-components=2 -C docs</userinput></screen>

    <para>
      Install <application>FreeType2</application> by running the following
      commands:
    </para>

<screen><userinput>sed -ri "s:.*(AUX_MODULES.*valid):\1:" modules.cfg &amp;&amp;

sed -r "s:.*(#.*SUBPIXEL_RENDERING) .*:\1:" \
    -i include/freetype/config/ftoption.h  &amp;&amp;

./configure --prefix=/usr --enable-freetype-config --disable-static &amp;&amp;
make</userinput></screen>

    <para>
      This package does not come with a test suite.
    </para>

    <para>
      Now, as the <systemitem class="username">root</systemitem> user:
    </para>

<screen role="root"><userinput>make install</userinput></screen>

    <para>
      If you downloaded the optional documentation, install it as the
      <systemitem class="username">root</systemitem> user:
    </para>

<screen role="root"><userinput>cp -v -R docs -T /usr/share/doc/freetype-&freetype2-version; &amp;&amp;
rm -v /usr/share/doc/freetype-&freetype2-version;/freetype-config.1</userinput></screen>

  </sect2>

  <sect2 role="commands">
    <title>Command Explanations</title>

    <para>
      <command>sed -ri ...</command>: First command enables GX/AAT and OpenType
      table validation and second command enables Subpixel Rendering. Note that
      Subpixel Rendering may have patent issues.  Be sure to read the
      <literal>'Other patent issues'</literal> part of <ulink
      url="https://freetype.org/patents.html"/> before enabling this option.
    </para>

    <para>
      <parameter>--enable-freetype-config</parameter>: This switch
      ensure that the man page for freetype-config is installed.
    </para>

    <para>
      <option>--without-harfbuzz</option>: If
      <application>harfbuzz</application> is installed prior to
      <application>freetype</application> without
      <application>freetype</application> support, use this switch to avoid a
      build failure.
    </para>

    <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
      href="../../xincludes/static-libraries.xml"/>
    <!-- No longer valid with 2.10.1, /usr/bin/freetype-config is installed
         by the 'make install' command.
    <para>
      <command>cp builds/unix/freetype-config /usr/bin</command>: Manually
      place the freetype configureation program needed by other programs when
      using the freetype library.
    </para>
    -->

  </sect2>

  <sect2 role="content">
    <title>Contents</title>

    <segmentedlist>
      <segtitle>Installed Program</segtitle>
      <segtitle>Installed Library</segtitle>
      <segtitle>Installed Directories</segtitle>

      <seglistitem>
        <seg>
          freetype-config
        </seg>
        <seg>
          libfreetype.so
        </seg>
        <seg>
          /usr/include/freetype2 and
          /usr/share/doc/freetype-&freetype2-version;
        </seg>
      </seglistitem>
    </segmentedlist>

    <variablelist>
      <bridgehead renderas="sect3">Short Descriptions</bridgehead>
      <?dbfo list-presentation="list"?>
      <?dbhtml list-presentation="table"?>

      <varlistentry id="freetype-config">
        <term><command>freetype-config</command></term>
        <listitem>
          <para>
            is used to get <application>FreeType</application> compilation
            and linking information
          </para>
          <indexterm zone="freetype2 freetype-config">
            <primary sortas="b-freetype-config">freetype2-config</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="libfreetype">
        <term><filename class="libraryfile">libfreetype.so</filename></term>
        <listitem>
          <para>
            contains functions for rendering various font types, such
            as TrueType and Type1
          </para>
          <indexterm zone="freetype2 libfreetype">
            <primary sortas="c-libfreetype">libfreetype.so</primary>
          </indexterm>
        </listitem>
      </varlistentry>

    </variablelist>

  </sect2>

</sect1>