Building info fails because the maxima 5.43.0 source tarball seems to be missing include-maxima.texi.in file from doc/info/{de,pt,pt_BR}/, i.e. the info docs only build for the es locale where this file is indeed present. See build failure logs from here (when building packages for openSUSE):
https://build.opensuse.org/package/live_build_log/home:badshah400:branches:Education/maxima/openSUSE_Tumbleweed/x86_64
(also attached in full here and relevant portion pasted below)
[ 140s] Making all in de.utf8
[ 140s] make[3]: Entering directory '/home/abuild/rpmbuild/BUILD/maxima-5.43.0/doc/info/de.utf8'
[ 140s] rm -f maxima*.html 2>/dev/null
[ 140s] /usr/bin/env perl ./../texi2html --split_chapter --lang=de --output=. \
[ 140s] --css-include=./../manual.css \
[ 140s] -I ./../de -I ./../de \
[ 140s] --init-file ./texi2html.init \
[ 140s] ../de/maxima.texi
[ 140s] *** Error: can't read init file ./texi2html.init
[ 140s] *** Can't find include-maxima.de.texi, skipping (l. 6)
[ 140s] ** empty document
[ 140s] for f in maxima*.html; do \
[ 140s] if test x = xtrue ; then \
[ 140s] recode ISO-8859-1..UTF-8 $f ; \
[ 140s] else \
[ 140s] rm -f foo.$f 2>/dev/null ; \
[ 140s] iconv -f ISO-8859-1 -t UTF-8 $f > foo.$f ; \
[ 140s] mv -f foo.$f $f ; \
[ 140s] fi; \
[ 140s] done
[ 140s] iconv: cannot open input file `maxima*.html': No such file or directory
[ 140s] for f in maxima*.html; do \
[ 140s] rm -f foo.$f 2>/dev/null ; \
[ 140s] sed -e "s|charset=iso-8859-1|charset=utf-8|" < $f > foo.$f ; \
[ 140s] mv -f foo.$f $f ; \
[ 140s] done
[ 140s] /usr/bin/env perl ./../create_index `grep -l name..SEC_Contents maxima*.html`
[ 140s] create_index: No name of the file containing the index was Specified!
[ 140s] make[3]: *** [Makefile:821: contents.hhc] Error 255
[ 140s] make[3]: Leaving directory '/home/abuild/rpmbuild/BUILD/maxima-5.43.0/doc/info/de.utf8'
[ 140s] make[2]: *** [Makefile:1139: all-recursive] Error 1
[ 140s] make[2]: Leaving directory '/home/abuild/rpmbuild/BUILD/maxima-5.43.0/doc/info'
[ 140s] make[1]: *** [Makefile:400: all-recursive] Error 1
[ 141s] make[1]: Leaving directory '/home/abuild/rpmbuild/BUILD/maxima-5.43.0/doc'
[ 141s] make: *** [Makefile:464: all-recursive] Error 1
[ 141s] error: Bad exit status from /var/tmp/rpm-tmp.9bOsZF (%build)
Thanks.
I hope commit b7a412df7 resolves this issue. Thanks a lot for reporting it: A file missing from the tarball (but not from git) that is only used for a specific setup is quite hard to find during testing for the release.