[postgis-tickets] [PostGIS] #5539: URI of DocBook XSL doesn't work on Trisquel 10.0.1, which is our build-test docker image

[PostGIS]

#5539: URI of DocBook XSL doesn't work on Trisquel 10.0.1, which is our build-test
docker image
-----------------------------------+---------------------------
 Reporter:  strk                   |      Owner:  strk
     Type:  defect                 |     Status:  new
 Priority:  blocker                |  Milestone:  PostGIS 3.5.0
Component:  build/upgrade/install  |    Version:  master
 Keywords:                         |
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 The URI we're using right now (DOCBOOK_XSLBASE)  is
 http://cdn.docbook.org/release/xsl/current but some systems are not able
 to resolve it correctly with their xml catalog.

 On Trisquel 10.0.1 which is our current postgis-docker.osgeo.org:postgis
 /build-test docker image those URIs don't work:

 {{{
 # xmlcatalog '' http://cdn.docbook.org/release/xsl/current
 No entry for SYSTEM http://cdn.docbook.org/release/xsl/current
 No entry for URI http://cdn.docbook.org/release/xsl/current
 }}}

 But older (legacy) uri work:
 {{{
 # xmlcatalog '' http://docbook.sourceforge.net/release/xsl-
 ns/current/html/docbook.xsl
 file:///usr/share/xml/docbook/stylesheet/docbook-xsl-ns/html/docbook.xsl
 }}}

 This ticket is use the legacy URL or eventually add a configure-time check
 to see which URI works or give up if none work. Doing this at configure
 time would be similar to what we were doing before commit
 [b6583e98323ffe1a8438b51f3a9c70205fdbcf6b/git] that is allow some kind of
 configure-time switch to find those xsl. See also ticket #5537 and #5538
-- 
Ticket URL: <https://trac.osgeo.org/postgis/ticket/5539>
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