source-highlight fails to make docs

[dubiousjim]

I have source-highlight @3.1.8_4 installed and cannot upgrade to source-highlight @3.1.8_5. This is a different problem than reported in ​https://trac.macports.org/ticket/59004.

Build fails with:

Making all in doc
make[2]: Entering directory `/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_textproc_source-highlight/source-highlight/work/source-highlight-3.1.8/doc'
Makefile:1643: warning: overriding commands for target `styleformatter.h.texinfo'
Makefile:1634: warning: ignoring old commands for target `styleformatter.h.texinfo'
../src/source-highlight --data-dir ../src/ -s java -f html  --style-file ../src/default.style  -i ./Hello.java -o Hello1.html
../src/source-highlight --data-dir ../src/ -s java -f html  --style-file ../src/default.style  --input ./Hello.java --output Hello2.html --doc
../src/source-highlight --data-dir ../src/ -s java -f html  --style-file ../src/default.style  -i ./Hello.java -o Hello3.html --title "Happy Java with java2html :-)" --tab 3
../src/source-highlight --data-dir ../src/ -s java -f html  --style-file ../src/default.style  < ./Hello.java > Hello4.html --title "and what about CSS :-)" --css "Hello.css"
outlaoutlanng.map:ogu.tmla1n:g .mwaapp:1r::oong  1w: wrsruoong pspeecctlnagin sfiicpaetigc.fmoapni:caihfi1c: taitotnmilohwt r=omn nhtg sl =pec ihmhlftimtl.cm.louattliao non=html u=tglang html.out
 htlmaln.goutlang
make[2]: *** [Hello3.html] Error 1
make[2]: *** Waiting for unfinished jobs....
make[2]: *** [Hello2.html] Error 1
make[2]: *** [Hello1.html] Error 1
make[2]: *** [Hello4.html] Error 1
make[2]: Leaving directory `/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_textproc_source-highlight/source-highlight/work/source-highlight-3.1.8/doc'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_textproc_source-highlight/source-highlight/work/source-highlight-3.1.8'
make: *** [all] Error 2
make: Leaving directory `/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_textproc_source-highlight/source-highlight/work/source-highlight-3.1.8'
Command failed:  cd "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_textproc_source-highlight/source-highlight/work/source-highlight-3.1.8" && /usr/bin/make -j4 -w all 
Exit code: 2
Error: Failed to build source-highlight: command execution failed

Log attached.