diff --git a/app/text/docbook-xsl/765567_non-recursive_string_subst.patch b/app/text/docbook-xsl/765567_non-recursive_string_subst.patch
new file mode 100644
index 00000000..2e0894f6
--- /dev/null
+++ b/app/text/docbook-xsl/765567_non-recursive_string_subst.patch
@@ -0,0 +1,31 @@
+Description: use EXSLT "replace" function when available
+ A recursive implementation  of string.subst is problematic,
+ long strings with many matches will cause stack overflows.
+Author: Peter De Wachter <pdewacht@gmail.com>
+Bug-Debian: https://bugs.debian.org/750593
+
+--- docbook-xsl-1.78.1+dfsg.orig/docbook-xsl/lib/lib.xsl
++++ docbook-xsl-1.78.1+dfsg/docbook-xsl/lib/lib.xsl
+@@ -6,7 +6,11 @@
+ 
+      This module implements DTD-independent functions
+ 
+-     ******************************************************************** --><xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
++     ******************************************************************** -->
++<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
++                xmlns:str="http://exslt.org/strings"
++                exclude-result-prefixes="str"
++                version="1.0">
+ 
+ <xsl:template name="dot.count">
+   <!-- Returns the number of "." characters in a string -->
+@@ -52,6 +56,9 @@
+   <xsl:param name="replacement"/>
+ 
+   <xsl:choose>
++    <xsl:when test="function-available('str:replace')">
++      <xsl:value-of select="str:replace($string, string($target), string($replacement))"/>
++    </xsl:when>
+     <xsl:when test="contains($string, $target)">
+       <xsl:variable name="rest">
+         <xsl:call-template name="string.subst">
diff --git a/app/text/docbook-xsl/docbook-xls.install b/app/text/docbook-xsl/docbook-xls.install
new file mode 100644
index 00000000..b4b98d27
--- /dev/null
+++ b/app/text/docbook-xsl/docbook-xls.install
@@ -0,0 +1,46 @@
+post_install() {
+  if [ ! -f /etc/xml/catalog ]; then
+    xmlcatalog --noout --create /etc/xml/catalog
+  fi
+  _NEW=`echo $1 | sed 's|\(.*\)\-.*|\1|'`
+
+  xmlcatalog --noout --add "rewriteSystem" \
+    "http://docbook.sourceforge.net/release/xsl/${_NEW}" \
+    "/usr/share/xml/docbook/xsl-stylesheets-${_NEW}" \
+    etc/xml/catalog
+
+  xmlcatalog --noout --add "rewriteURI" \
+    "http://docbook.sourceforge.net/release/xsl/${_NEW}" \
+    "/usr/share/xml/docbook/xsl-stylesheets-${_NEW}" \
+    etc/xml/catalog &&
+
+  xmlcatalog --noout --add "rewriteSystem" \
+    "http://docbook.sourceforge.net/release/xsl/current" \
+    "/usr/share/xml/docbook/xsl-stylesheets-${_NEW}" \
+    etc/xml/catalog &&
+
+  xmlcatalog --noout --add "rewriteURI" \
+    "http://docbook.sourceforge.net/release/xsl/current" \
+    "/usr/share/xml/docbook/xsl-stylesheets-${_NEW}" \
+    etc/xml/catalog
+}
+
+post_upgrade() {
+  post_remove $2
+  post_install $1
+}
+
+post_remove() {
+  _OLD=`echo $1 | sed 's|\(.*\)\-.*|\1|'`
+  xmlcatalog --noout --del "/usr/share/xml/docbook/xsl-stylesheets-${_OLD}" etc/xml/catalog
+
+  if [ $(vercmp $1 1.72.0-3) -lt 0 ]; then
+    xmlcatalog --noout --del "/usr/share/xml/docbook" etc/xml/catalog
+    xmlcatalog --noout --del "file:///etc/xml/docbook" etc/xml/catalog
+  fi
+}
+
+op=$1
+shift
+
+$op $*
diff --git a/app/text/docbook-xsl/ympbuild b/app/text/docbook-xsl/ympbuild
index 13386a2d..9ddf49dd 100644
--- a/app/text/docbook-xsl/ympbuild
+++ b/app/text/docbook-xsl/ympbuild
@@ -7,20 +7,21 @@ description='XML stylesheets for Docbook-xml transformations'
 email='akarsu@protonmail.com'
 maintainer='akarsu'
 license=('custom')
-source=(https://github.com/docbook/xslt10-stylesheets/releases/download/release/$version/docbook-xsl{,-nons}-$version.zip '765567_non-recursive_string_subst.patch')
+source=(https://github.com/docbook/xslt10-stylesheets/releases/download/release/${version}/docbook-xsl{,-nons}-${version}.zip
+    'docbook-xls.install'
+    '765567_non-recursive_string_subst.patch')
 depends=(docbook-xml libxml2 libxslt)
 makedepends=()
-md5sums=('39c12481817d5a57501d27621eeba9a8' 'df397633036d576f04431f1b00047910' 'd41d8cd98f00b204e9800998ecf8427e')
+md5sums=('39c12481817d5a57501d27621eeba9a8' 'df397633036d576f04431f1b00047910' 'SKIP' 'SKIP')
 group=(app.text)
 uses=()
 arch=('x86_64')
 
-install=$name.install
+install=../../$name.install
 cd $name-$version
 
-
+ls -l ../
 build(){
-
 	patch -Np2 -i ../765567_non-recursive_string_subst.patch
 	cd ../$name-nons-$version
 	patch -Np2 -i ../765567_non-recursive_string_subst.patch