[MacPorts] #37149: fontconfig @2.10.1 fails with docbook-utils installed

[MacPorts]

#37149: fontconfig @2.10.1 fails with docbook-utils installed
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 Reporter:  lockhart@…  |      Owner:  macports-tickets@…
     Type:  defect      |     Status:  new
 Priority:  Normal      |  Milestone:
Component:  ports       |    Version:  2.1.2
 Keywords:  haspatch    |       Port:  fontconfig
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 docbook-utils provides tools to build SGML-based documentation. The
 fontconfig configuration step finds these tools and automatically tries to
 rebuild its own documentation, which otherwise is obtained from pre-built
 versions in the source tarball. atm the docbook-utils utility to build
 hardcopy is broken due to other missing packages so the doc build step
 fails.
 This patch adds a single argument to the fontconfig configure step to
 suppress building new documentation (which is the expected behavior).
 Additionally, the documentation sources are patched to build against
 current versions of docbook-sgml (though as mentioned above the final step
 for this fails).

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Ticket URL: <https://trac.macports.org/ticket/37149>
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