[R-pkg-team] Bug#957742: r-cran-vgam: ftbfs with GCC-10

[Matthias Klose]

Package: src:r-cran-vgam
Version: 1.1-2-1
Severity: normal
Tags: sid bullseye
User: debian-gcc at lists.debian.org
Usertags: ftbfs-gcc-10

Please keep this issue open in the bug tracker for the package it
was filed for.  If a fix in another package is required, please
file a bug for the other package (or clone), and add a block in this
package. Please keep the issue open until the package can be built in
a follow-up test rebuild.

The package fails to build in a test rebuild on at least amd64 with
gcc-10/g++-10, but succeeds to build with gcc-9/g++-9. The
severity of this report will be raised before the bullseye release,
so nothing has to be done for the buster release.

The full build log can be found at:
http://people.debian.org/~doko/logs/gcc10-20200225/r-cran-vgam_1.1-2-1_unstable_gcc10.log
The last lines of the build log are at the end of this report.

To build with GCC 10, either set CC=gcc-10 CXX=g++-10 explicitly,
or install the gcc, g++, gfortran, ... packages from experimental.

  apt-get -t=experimental install g++ 

Common build failures are new warnings resulting in build failures with
-Werror turned on, or new/dropped symbols in Debian symbols files.
For other C/C++ related build failures see the porting guide at
http://gcc.gnu.org/gcc-10/porting_to.html

[...]
dpkg-buildpackage: info: source version 1.1-2-1
dpkg-buildpackage: info: source distribution unstable
dpkg-buildpackage: info: source changed by Andreas Tille <tille at debian.org>
 dpkg-source --before-build .
dpkg-buildpackage: info: host architecture amd64
 fakeroot debian/rules clean
dh clean --buildsystem R
   dh_auto_clean -O--buildsystem=R
   dh_autoreconf_clean -O--buildsystem=R
   dh_clean -O--buildsystem=R
 debian/rules build
make: 'build' is up to date.
 fakeroot debian/rules binary
dh binary --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
   dh_auto_install -O--buildsystem=R
I: R Package: VGAM Version: 1.1-2
I: Building using R version 3.6.2.20200221-1
I: R API version: r-api-3.5
I: Using built-time from d/changelog: Thu, 28 Nov 2019 10:46:47 +0100
	mkdir -p /<<PKGBUILDDIR>>/debian/r-cran-vgam/usr/lib/R/site-library
	R CMD INSTALL -l /<<PKGBUILDDIR>>/debian/r-cran-vgam/usr/lib/R/site-library --clean . "--built-timestamp='Thu, 28 Nov 2019 10:46:47 +0100'"
* installing *source* package ‘VGAM’ ...
** package ‘VGAM’ successfully unpacked and MD5 sums checked
** using staged installation
** libs
make[1]: Entering directory '/<<PKGBUILDDIR>>/src'
gcc -std=gnu99 -I"/usr/share/R/include" -DNDEBUG     -fpic  -g -O2 -fdebug-prefix-map=/build/r-base-8eWJoV/r-base-3.6.2.20200221=. -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -g  -c VGAM_init.c -o VGAM_init.o
gcc -std=gnu99 -I"/usr/share/R/include" -DNDEBUG     -fpic  -g -O2 -fdebug-prefix-map=/build/r-base-8eWJoV/r-base-3.6.2.20200221=. -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -g  -c caqo3.c -o caqo3.o
gfortran -fno-optimize-sibling-calls  -fpic  -g -O2 -fdebug-prefix-map=/build/r-base-8eWJoV/r-base-3.6.2.20200221=. -fstack-protector-strong  -c cqof.f -o cqof.o
cqof.f:1646:32:

 1614 |       call dblepr("cqo1f: vm4xjosb()",-1,vm4xjosb,kuzxj1lo)
      |                                         2
......
 1646 |       call dblepr("rpto5qwb",-1,rpto5qwb,1)
      |                                1
Error: Rank mismatch between actual argument at (1) and actual argument at (2) (rank-1 and scalar)
cqof.f:1694:33:

 1579 |      *-: ",-1,hbsl0gto,1)
      |              2                   
......
 1694 |       call intpr("ges1xpkr: ",-1,ges1xpkr,xlpjcg3s)
      |                                 1
Error: Rank mismatch between actual argument at (1) and actual argument at (2) (scalar and rank-1)
cqof.f:1772:39:

 1614 |       call dblepr("cqo1f: vm4xjosb()",-1,vm4xjosb,kuzxj1lo)
      |                                         2
......
 1772 |       call dblepr("cqo1f: wiptsjx8",-1,wiptsjx8,1)
      |                                       1
Error: Rank mismatch between actual argument at (1) and actual argument at (2) (rank-1 and scalar)
make[1]: *** [/usr/lib/R/etc/Makeconf:191: cqof.o] Error 1
make[1]: Leaving directory '/<<PKGBUILDDIR>>/src'
make[1]: Entering directory '/<<PKGBUILDDIR>>/src'
make[1]: Leaving directory '/<<PKGBUILDDIR>>/src'
ERROR: compilation failed for package ‘VGAM’
* removing ‘/<<PKGBUILDDIR>>/debian/r-cran-vgam/usr/lib/R/site-library/VGAM’
dh_auto_install: error: R CMD INSTALL -l /<<PKGBUILDDIR>>/debian/r-cran-vgam/usr/lib/R/site-library --clean . "--built-timestamp='Thu, 28 Nov 2019 10:46:47 +0100'" returned exit code 1
make: *** [debian/rules:4: binary] Error 25
dpkg-buildpackage: error: fakeroot debian/rules binary subprocess returned exit status 2