Description: Recover the giffilter manual page
Author: David Suárez <david.sephirot@gmail.com>
Origin: vendor
Bug: https://sourceforge.net/p/giflib/bugs/154/
Last-Update: 2020-12-20

--- /dev/null
+++ b/doc/giffilter.xml
@@ -0,0 +1,42 @@
+<?xml version="1.0" encoding="ISO-8859-1"?>
+<!DOCTYPE refentry PUBLIC
+   "-//OASIS//DTD DocBook XML V4.1.2//EN"
+   "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd" [
+<!ENTITY email         "esr@thyrsus.com">
+]>
+<refentry id='giffilter.1'>
+<refentryinfo><date>2 May 2012</date></refentryinfo>
+<refmeta>
+<refentrytitle>giffilter</refentrytitle>
+<manvolnum>1</manvolnum>
+<refmiscinfo class="source">GIFLIB</refmiscinfo>
+<refmiscinfo class="manual">GIFLIB Documentation</refmiscinfo>
+</refmeta>
+<refnamediv id='name'>
+<refname>giffilter</refname>
+<refpurpose>expensive GIF copy, a model for filter utilities</refpurpose>
+</refnamediv>
+
+<refsynopsisdiv id='synopsis'>
+
+<cmdsynopsis>
+  <command>giffilter</command>
+</cmdsynopsis>
+</refsynopsisdiv>
+
+<refsect1><title>Description</title>
+
+<para>This is an expensive way to copy a GIF.  The source is included
+as a skeleton for more sophisticated filters.  See the source in the
+util directory for details.</para>
+
+<para>Also has some utility as a test of the sequential GIF record I/O
+routines.  The output should be bytewise identical to the input.</para>
+
+</refsect1>
+<refsect1><title>Author</title>
+
+<para>Eric S. Raymond <email>&email;</email></para>
+
+</refsect1>
+</refentry>
--- a/Makefile
+++ b/Makefile
@@ -67,6 +67,7 @@
 	doc/gifbuild.1 \
 	doc/gifclrmp.1 \
 	doc/gifecho.1 \
+	doc/giffilter.1 \
 	doc/giffix.1 \
 	doc/gifinto.1 \
 	doc/giflib.1 \
--- a/doc/Makefile
+++ b/doc/Makefile
@@ -22,6 +22,7 @@
 	gifbuild.xml \
 	gifclrmp.xml \
 	gifecho.xml \
+	giffilter.xml \
 	giffix.xml \
 	gifinto.xml \
 	giflib.xml \
