https://gitlab.gnome.org/GNOME/libxml2/-/issues/252

From 5d6403682a3463f29a1f7c27aa54ecb5e3971547 Mon Sep 17 00:00:00 2001
From: Sam James <sam@gentoo.org>
Date: Thu, 13 May 2021 17:40:22 +0000
Subject: [PATCH] Disable fuzz tests

Not all of the fuzz files are included with the dist tarball,
so disabling them for now to get the release in with most tests
given the security bug.
--- a/Makefile.am
+++ b/Makefile.am
@@ -2,9 +2,9 @@
 
 ACLOCAL_AMFLAGS = -I m4
 
-SUBDIRS = include . doc example fuzz xstc $(PYTHON_SUBDIR)
+SUBDIRS = include . doc example xstc $(PYTHON_SUBDIR)
 
-DIST_SUBDIRS = include . doc example fuzz python xstc
+DIST_SUBDIRS = include . doc example python xstc
 
 AM_CPPFLAGS = -I$(top_builddir)/include -I$(srcdir)/include
 
@@ -210,7 +210,6 @@ runtests: runtest$(EXEEXT) testrecurse$(EXEEXT) testapi$(EXEEXT) \
 	    $(CHECKER) ./runxmlconf$(EXEEXT)
 	@(if [ "$(PYTHON_SUBDIR)" != "" ] ; then cd python ; \
 	    $(MAKE) tests ; fi)
-	@cd fuzz; $(MAKE) tests
 
 check: all runtests
 
--