Description: Add gifsponge docs
Author: David Suárez <david.sephirot@gmail.com>
Origin: vendor
Bug: https://sourceforge.net/p/giflib/bugs/155/
Last-Update: 2020-12-20

--- a/Makefile
+++ b/Makefile
@@ -71,6 +71,7 @@
 	doc/giffix.1 \
 	doc/gifinto.1 \
 	doc/giflib.1 \
+	doc/gifsponge.1 \
 	doc/giftext.1 \
 	doc/giftool.1
 
--- a/doc/Makefile
+++ b/doc/Makefile
@@ -26,6 +26,7 @@
 	giffix.xml \
 	gifinto.xml \
 	giflib.xml \
+	gifsponge.xml \
 	giftext.xml \
 	giftool.xml
 XMLINTERNAL = \
--- /dev/null
+++ b/doc/gifsponge.xml
@@ -0,0 +1,40 @@
+<?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         "david.sephirot@gmail.com">
+]>
+<refentry id='gifsponge.1'>
+<refentryinfo><date>20 Dec 2020</date></refentryinfo>
+<refmeta>
+<refentrytitle>gifsponge</refentrytitle>
+<manvolnum>1</manvolnum>
+<refmiscinfo class="source">GIFLIB</refmiscinfo>
+<refmiscinfo class="manual">GIFLIB Documentation</refmiscinfo>
+</refmeta>
+<refnamediv id='name'>
+<refname>gifsponge</refname>
+<refpurpose>expensive GIF copy, a model for slurp utilities</refpurpose>
+</refnamediv>
+
+<refsynopsisdiv id='synopsis'>
+
+<cmdsynopsis>
+  <command>gifsponge</command>
+</cmdsynopsis>
+</refsynopsisdiv>
+
+<refsect1><title>Description</title>
+
+<para>Slurp a GIF into core, operate on it, spew it out again.
+This is an expensive way to copy a GIF.  The source is included
+as a skeleton for more sophisticated slurp utilities.  See the source in the
+util directory for details.</para>
+
+</refsect1>
+<refsect1><title>Author</title>
+
+<para>David Suárez <email>&email;</email></para>
+
+</refsect1>
+</refentry>
