Bug#921807: sketch: FTBFS (LaTeX error)

[Santiago Vila]

Package: src:sketch
Version: 1:0.3.7-10
Severity: serious
Tags: ftbfs

Dear maintainer:

I tried to build this package in buster but it failed:

--------------------------------------------------------------------------------
[...]
 debian/rules build-indep
dh build-indep
   dh_update_autotools_config -i
   dh_autoreconf -i
   debian/rules override_dh_auto_configure
make[1]: Entering directory '/<<PKGBUILDDIR>>'
perl makever.pl
not generating web page
make[1]: Leaving directory '/<<PKGBUILDDIR>>'
   debian/rules override_dh_auto_build
make[1]: Entering directory '/<<PKGBUILDDIR>>'
dh_auto_build
	make -j1
make[2]: Entering directory '/<<PKGBUILDDIR>>'

[... snipped ...]

(/usr/share/texlive/texmf-dist/tex/generic/pst-node/pst-node.tex)))
(/usr/share/texlive/texmf-dist/tex/latex/pst-text/pst-text.sty
(/usr/share/texlive/texmf-dist/tex/generic/pst-text/pst-text.tex
 v1.01, 2018/12/22(tvz,hv)))
(/usr/share/texlive/texmf-dist/tex/latex/pst-3d/pst-3d.sty
(/usr/share/texlive/texmf-dist/tex/generic/pst-3d/pst-3d.tex))
(/usr/share/texlive/texmf-dist/tex/latex/pst-eps/pst-eps.sty
(/usr/share/texlive/texmf-dist/tex/generic/pst-eps/pst-eps.tex
 v1.00, 2006/11/04))
(/usr/share/texlive/texmf-dist/tex/latex/pst-fill/pst-fill.sty
(/usr/share/texlive/texmf-dist/tex/generic/pst-fill/pst-fill.tex
`PST-Fill' v1.01, 2007/03/10 (tvz,dg,hv)))
(/usr/share/texlive/texmf-dist/tex/latex/pstricks-add/pstricks-add.sty
(/usr/share/texlive/texmf-dist/tex/latex/pst-math/pst-math.sty
(/usr/share/texlive/texmf-dist/tex/latex/pst-calculate/pst-calculate.sty
(/usr/share/texlive/texmf-dist/tex/latex/l3packages/xparse/xparse.sty
(/usr/share/texlive/texmf-dist/tex/latex/l3kernel/expl3.sty
(/usr/share/texlive/texmf-dist/tex/latex/l3kernel/expl3-code.tex)
(/usr/share/texlive/texmf-dist/tex/latex/l3kernel/l3dvips.def)))
(/usr/share/texlive/texmf-dist/tex/latex/siunitx/siunitx.sty
(/usr/share/texlive/texmf-dist/tex/latex/amsmath/amstext.sty
(/usr/share/texlive/texmf-dist/tex/latex/amsmath/amsgen.sty))
(/usr/share/texlive/texmf-dist/tex/latex/tools/array.sty)
(/usr/share/texlive/texmf-dist/tex/latex/l3packages/l3keys2e/l3keys2e.sty)
(/usr/share/texlive/texmf-dist/tex/latex/translator/translator.sty)))
(/usr/share/texlive/texmf-dist/tex/generic/oberdiek/ifluatex.sty)

! LaTeX Error: File `xstring.sty' not found.

Type X to quit or <RETURN> to proceed,
or enter new name. (Default extension: sty)

Enter file name: 
! Emergency stop.
<read *> 
         
l.19 \input
            pst-math.tex^^M
No pages of output.
Transcript written on ex000-tmp.log.
Inappropriate ioctl for device at make.pl line 34, <F> line 1.
make[1]: *** [debian/rules:28: override_dh_auto_build] Error 25
make[1]: Leaving directory '/<<PKGBUILDDIR>>'
make: *** [debian/rules:21: build-indep] Error 2
dpkg-buildpackage: error: debian/rules build-indep subprocess returned exit status 2
--------------------------------------------------------------------------------

(The above is just how the build ends and not necessarily the most relevant part)

The build was made in my autobuilder with "dpkg-buildpackage -A"
and it also fails here:

https://tests.reproducible-builds.org/debian/rb-pkg/unstable/amd64/sketch.html

where you can get a full build log if you need it.

If this is really a bug in one of the build-depends, please use reassign and affects,
so that this is still visible in the BTS web page for this package.

Thanks.