Created attachment 858524 [details]
user.log

fpc:doc fails to build on Tumbleweed due to a LaTex error:
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pdfTeX warning (ext4): destination with the same identifier (name{page.1}) has 
been already used, duplicate ignored
<to be read again> 
                   \relax 
l.58 \chapter
             {Introduction} [1

]
Chapter 1.
! Undefined control sequence.
\refref ->\htmladdnormallink 
                             {Reference Guide}{../ref/ref.html}\xspace 
l.67 \refref
             for these things. For a description of the possibilities and the
? 
! Emergency stop.
\refref ->\htmladdnormallink 
                             {Reference Guide}{../ref/ref.html}\xspace 
l.67 \refref
             for these things. For a description of the possibilities and the
End of file on the terminal!
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Latest build results are available at
https://build.opensuse.org/package/live_build_log/devel:languages:pascal/fpc:doc/openSUSE_Factory/x86_64