[R-pkg-team] Bug#1139528: r-cran-sets: FTBFS: LaTeX error

[Santiago Vila]

Package: src:r-cran-sets
Version: 1.0.25+ds-2
Severity: serious
Tags: ftbfs forky sid

Dear maintainer:

During a rebuild of all packages in unstable, this package failed to build.

Below you will find the last part of the build log (probably the most
relevant part, but not necessarily). If required, the full build log
is available here:

https://people.debian.org/~sanvila/build-logs/202606/

About the archive rebuild: The build was made on virtual machines from AWS,
using sbuild and a reduced chroot with only build-essential packages.

If you cannot reproduce the bug please contact me privately, as I
am willing to provide ssh access to a virtual machine where the bug is
fully reproducible.

If this is really a bug in one of the build-depends, please use
reassign and add an affects on src:r-cran-sets, so that this is still
visible in the BTS web page for this package.

Thanks.

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[...]
 debian/rules clean
dh clean --with vignette --buildsystem R
   dh_auto_clean -O--buildsystem=R
   dh_autoreconf_clean -O--buildsystem=R
   dh_clean -O--buildsystem=R
 debian/rules binary
dh binary --with vignette --buildsystem R
   dh_update_autotools_config -O--buildsystem=R
   dh_autoreconf -O--buildsystem=R
   dh_auto_configure -O--buildsystem=R
   dh_auto_build -O--buildsystem=R
   dh_auto_test -O--buildsystem=R
   create-stamp debian/debhelper-build-stamp
   dh_testroot -O--buildsystem=R
   dh_prep -O--buildsystem=R
   debian/rules execute_before_dh_vignette
make[1]: Entering directory '/<<PKGBUILDDIR>>'
dh_auto_install
I: R packages needed for DEP8: testthat
I: R Package: sets Version: 1.0-25
I: Building using R version 4.6.0-5
I: R API version: r-api-4.0
I: Using built-time from d/changelog: Wed, 11 Mar 2026 09:13:00 +0900
	mkdir -p /<<BUILDDIR>>/r-cran-sets-1.0.25\+ds/debian/r-cran-sets/usr/lib/R/site-library
	R CMD INSTALL -l /<<BUILDDIR>>/r-cran-sets-1.0.25\+ds/debian/r-cran-sets/usr/lib/R/site-library --clean . --built-timestamp="'Wed, 11 Mar 2026 09:13:00 +0900'"
* installing *source* package ‘sets’ ...
** this is package ‘sets’ version ‘1.0-25’
file ‘inst/doc/sets.pdf’ is missing
** using staged installation
** libs
using C compiler: ‘x86_64-linux-gnu-gcc (Debian 15.2.0-17) 15.2.0’
make[2]: Entering directory '/<<PKGBUILDDIR>>/src'
x86_64-linux-gnu-gcc -I"/usr/share/R/include" -DNDEBUG       -fpic  -g -O2 -ffile-prefix-map=/build/reproducible-path/r-base-4.6.0=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -Wdate-time -D_FORTIFY_SOURCE=2  -c closure.c -o closure.o
x86_64-linux-gnu-gcc -I"/usr/share/R/include" -DNDEBUG       -fpic  -g -O2 -ffile-prefix-map=/build/reproducible-path/r-base-4.6.0=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -Wdate-time -D_FORTIFY_SOURCE=2  -c init.c -o init.o
x86_64-linux-gnu-gcc -shared -L/usr/lib/R/lib -Wl,-z,relro -o sets.so closure.o init.o -L/usr/lib/R/lib -lR
make[2]: Leaving directory '/<<PKGBUILDDIR>>/src'
make[2]: Entering directory '/<<PKGBUILDDIR>>/src'
make[2]: Leaving directory '/<<PKGBUILDDIR>>/src'
installing to /<<PKGBUILDDIR>>/debian/r-cran-sets/usr/lib/R/site-library/00LOCK-r-cran-sets-1.0.25+ds/00new/sets/libs
** R
** data
** inst
** byte-compile and prepare package for lazy loading
** help
*** installing help indices
** building package indices
** installing vignettes
** testing if installed package can be loaded from temporary location
** checking absolute paths in shared objects and dynamic libraries
** testing if installed package can be loaded from final location
** testing if installed package keeps a record of temporary installation path
* DONE (sets)
W: Ignoring specified R dependency: R (>= 2.7.0)
I: Using r-cran-testthat for Recommends:testthat
I: Using r-cran-proxy for Suggests:proxy
I: Use r-cran-sets as Debian binary package for variables substitution
make[1]: Leaving directory '/<<PKGBUILDDIR>>'
   dh_vignette -O--buildsystem=R

R version 4.6.0 (2026-04-24) -- "Because it was There"
Copyright (C) 2026 The R Foundation for Statistical Computing
Platform: x86_64-pc-linux-gnu

R is free software and comes with ABSOLUTELY NO WARRANTY.
You are welcome to redistribute it under certain conditions.
Type 'license()' or 'licence()' for distribution details.

R is a collaborative project with many contributors.
Type 'contributors()' for more information and
'citation()' on how to cite R or R packages in publications.

Type 'demo()' for some demos, 'help()' for on-line help, or
'help.start()' for an HTML browser interface to help.
Type 'q()' to quit R.

>     tools::buildVignettes(dir=".", tangle=TRUE, quiet=TRUE)
--- re-building ‘sets.Rnw’ using Sweave

Attaching package: ‘proxy’

The following objects are masked from ‘package:stats’:

    as.dist, dist

The following object is masked from ‘package:base’:

    as.matrix

The "ward" method has been renamed to "ward.D"; note new "ward.D2"
The "ward" method has been renamed to "ward.D"; note new "ward.D2"
Error: processing vignette 'sets.Rnw' failed with diagnostics:
Running 'texi2dvi' on 'sets.tex' failed.
LaTeX errors:
! Undefined control sequence.
<argument> cite.\@citeb 
                        \@extra at b@citeb 
l.84 \begin{document}
                     
! Emergency stop.
<argument> cite.\@citeb 
                        \@extra at b@citeb 
l.84 \begin{document}
                     
!  ==> Fatal error occurred, no output PDF file produced!
--- failed re-building ‘sets.Rnw’

SUMMARY: processing the following file failed:
  ‘sets.Rnw’

Error: Vignette re-building failed.
Execution halted
make: *** [debian/rules:4: binary] Error 1
dpkg-buildpackage: error: debian/rules binary subprocess failed with exit status 2
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