CMake: Discover docbook stylesheet in other locations

Distributions seem to install this stuff all over the place, so
let's add a common list of paths we know about.

3 files changed, 3 insertions, 3 deletions

diff --git a/doc/docbook-html-style.xsl b/doc/docbook-html-style.xsl.cmake.in
index e4af9f557..9216d8e6e 100644
--- a/doc/docbook-html-style.xsl
+++ b/doc/docbook-html-style.xsl.cmake.in
@@ -2,7 +2,7 @@
 <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
 
   <!-- Import our base stylesheet -->
-  <xsl:import href="/usr/share/xml/docbook/stylesheet/docbook-xsl/xhtml-1_1/chunk.xsl" />
+  <xsl:import href="@DOCBOOK_XSL@/xhtml-1_1/chunk.xsl" />
 
   <!-- Since we use xsltproc (not saxon), add a workaround to ensure UTF-8 -->
   <xsl:template xmlns="http://www.w3.org/1999/xhtml" name="head.content.generator">
diff --git a/doc/docbook-text-style.xsl b/doc/docbook-text-style.xsl.cmake.in
index 376dded52..36af1bcb2 100644
--- a/doc/docbook-text-style.xsl
+++ b/doc/docbook-text-style.xsl.cmake.in
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
 
-  <xsl:import href="/usr/share/xml/docbook/stylesheet/docbook-xsl/xhtml-1_1/docbook.xsl" />
+  <xsl:import href="@DOCBOOK_XSL@/xhtml-1_1/docbook.xsl" />
 
   <!-- Parameters for optimal text output. -->
   <xsl:param name="callout.graphics" select="0"/>
diff --git a/doc/manpage-style.xsl b/doc/manpage-style.xsl.cmake.in
index a780bad13..53d6780cb 100644
--- a/doc/manpage-style.xsl
+++ b/doc/manpage-style.xsl.cmake.in
@@ -2,7 +2,7 @@
  xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
  version="1.0">
 
-<xsl:import href="/usr/share/xml/docbook/stylesheet/nwalsh/manpages/docbook.xsl" />
+<xsl:import href="@DOCBOOK_XSL@/manpages/docbook.xsl" />
 
 <xsl:param name="man.output.encoding" select="'UTF-8'" />