Source: https://gitlab.archlinux.org/archlinux/packaging/packages/alure/-/blob/main/dumb-2.patch

diff -Naur a/src/codec_dumb.cpp b/src/codec_dumb.cpp
--- a/src/codec_dumb.cpp	2011-07-29 09:37:48.000000000 +0100
+++ b/src/codec_dumb.cpp	2020-05-10 15:59:48.502632496 +0100
@@ -272,7 +272,11 @@
 
 private:
     // DUMBFILE iostream callbacks
+#if DUMB_VERSION >= 2*10000
+    static int skip(void *user_data, dumb_off_t offset)
+#else
     static int skip(void *user_data, long offset)
+#endif
     {
         std::istream *stream = static_cast<dumbStream*>(user_data)->fstream;
         stream->clear();
@@ -282,7 +286,11 @@
         return -1;
     }
 
+#if DUMB_VERSION >= 2*10000
+    static dumb_ssize_t read(char *ptr, size_t size, void *user_data)
+#else
     static long read(char *ptr, long size, void *user_data)
+#endif
     {
         std::istream *stream = static_cast<dumbStream*>(user_data)->fstream;
         stream->clear();

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<div class='path'>path: <a href='/guix/log/?id=26709726a80de2d22ab129ff49b38dc1600bf8b2'>root</a>/<a href='/guix/log/gnu?id=26709726a80de2d22ab129ff49b38dc1600bf8b2'>gnu</a>/<a href='/guix/log/gnu/packages?id=26709726a80de2d22ab129ff49b38dc1600bf8b2'>packages</a>/<a href='/guix/log/gnu/packages/abiword.scm?id=26709726a80de2d22ab129ff49b38dc1600bf8b2'>abiword.scm</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/gnu/packages/abiword.scm?id=26709726a80de2d22ab129ff49b38dc1600bf8b2&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2023-03-05 23:42:28 +0100'>2023-03-05</span></td><td><a href='/guix/commit/gnu/packages/abiword.scm?id=dbd085ff5f91824a6c396fc88fd71c856af810d2'>gnu: abiword: Enable gobject introspection.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/abiword.scm (abiword)[native-inputs]: Add gobject-introspection
and python-wrapper.
[arguments]: Enable building of gobject introspection files.
</span></span></td><td>Ricardo Wurmus</td></tr>
<tr><td><span title='2023-03-05 23:42:28 +0100'>2023-03-05</span></td><td><a href='/guix/commit/gnu/packages/abiword.scm?id=a7790d30857cd2bbfcc8691f7f4b60779459de49'>gnu: abiword: Drop input labels.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/abiword.scm (abiword)[inputs, native-inputs]: Drop package
labels.
</span></span></td><td>Ricardo Wurmus</td></tr>
<tr><td><span title='2023-03-05 23:42:28 +0100'>2023-03-05</span></td><td><a href='/guix/commit/gnu/packages/abiword.scm?id=a268115ca3d62a09ad2be216295cdeaff37872f0'>gnu: abiword: Use librsvg-for-system.</a><span class='msg-avail'>...<span class='msg-tooltip'>This allows us to build abiword for i686-linux.

* gnu/packages/abiword.scm (abiword)[inputs]: Replace librsvg with
librsvg-for-system.
</span></span></td><td>Ricardo Wurmus</td></tr>
<tr><td><span title='2023-02-16 22:41:03 +0200'>2023-02-16</span></td><td><a href='/guix/commit/gnu/packages/abiword.scm?id=672036c6dfe508810b565f4cf38e4f2aad2f7151'>gnu: Remove unneeded module imports.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/abiword.scm,
* gnu/packages/ada.scm,
* gnu/packages/agda.scm,
* gnu/packages/backup.scm,
* gnu/packages/barrier.scm,
* gnu/packages/bioinformatics.scm,
* gnu/packages/bootstrap.scm,
* gnu/packages/bqn.scm,
* gnu/packages/c.scm,
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* gnu/packages/jami.scm,
* gnu/packages/java-maths.scm,
* gnu/packages/kde-frameworks.scm,
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* gnu/packages/language.scm,
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* gnu/packages/linphone.scm,
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* gnu/packages/minetest.scm,
* gnu/packages/monitoring.scm,
* gnu/packages/nfs.scm,
* gnu/packages/ocr.scm,
* gnu/packages/opencl.scm,
* gnu/packages/pdf.scm,
* gnu/packages/python-xyz.scm,
* gnu/packages/racket.scm,
* gnu/packages/rust.scm,
* gnu/packages/syncthing.scm,
* gnu/packages/syndication.scm,
* gnu/packages/telegram.scm,
* gnu/packages/vulkan.scm,
* gnu/packages/web-browsers.scm,
* gnu/packages/web.scm,
* gnu/packages/webkit.scm: Remove some unecessary module imports.
</span></span></td><td>Efraim Flashner</td></tr>