[Debian-med-packaging] Bug#984296: praat: ftbfs with GCC-11

[Matthias Klose]

Package: src:praat
Version: 6.1.38-1
Severity: normal
Tags: sid bookworm
User: debian-gcc at lists.debian.org
Usertags: ftbfs-gcc-11

[This bug is not targeted to the upcoming bullseye release]

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-11/g++-11, but succeeds to build with gcc-10/g++-10. The
severity of this report will be raised before the bookworm release,
so nothing has to be done for the bullseye release.

The full build log can be found at:
http://people.debian.org/~doko/logs/20210228/filtered/gcc11/praat_6.1.38-1_unstable_gcc11.log
The last lines of the build log are at the end of this report.

To build with GCC 11, either set CC=gcc-11 CXX=g++-11 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-11/porting_to.html

GCC 11 defaults to the GNU++17 standard.  If your package installs
header files in /usr/include, please don't work around C++17 issues
by choosing a lower C++ standard for the package build, but fix these
issues to build with the C++17 standard.

[...]
   61 |         double min = std::numeric_limits<double>::max();
      |                           ^~~~~~~~~~~~~~
../../melder/melder_real.h:61:42: error: expected primary-expression before ‘double’
   61 |         double min = std::numeric_limits<double>::max();
      |                                          ^~~~~~
../../melder/melder_real.h:62:27: error: ‘numeric_limits’ is not a member of ‘std’
   62 |         double max = std::numeric_limits<double>::lowest();
      |                           ^~~~~~~~~~~~~~
../../melder/melder_real.h:62:42: error: expected primary-expression before ‘double’
   62 |         double max = std::numeric_limits<double>::lowest();
      |                                          ^~~~~~
In file included from ../../melder/melder.h:52,
                 from clapack.h:4,
                 from lapack_dg.cpp:1:
../../melder/melder_real.h:61:27: error: ‘numeric_limits’ is not a member of ‘std’
   61 |         double min = std::numeric_limits<double>::max();
      |                           ^~~~~~~~~~~~~~
../../melder/melder_real.h:61:42: error: expected primary-expression before ‘double’
   61 |         double min = std::numeric_limits<double>::max();
      |                                          ^~~~~~
../../melder/melder_real.h:62:27: error: ‘numeric_limits’ is not a member of ‘std’
   62 |         double max = std::numeric_limits<double>::lowest();
      |                           ^~~~~~~~~~~~~~
../../melder/melder_real.h:62:42: error: expected primary-expression before ‘double’
   62 |         double max = std::numeric_limits<double>::lowest();
      |                                          ^~~~~~
make[3]: *** [<builtin>: blas.o] Error 1
make[3]: *** Waiting for unfinished jobs....
lapack.cpp: In function ‘integer iparmq_(integer*, const char*, const char*, integer*, integer*, integer*, integer*)’:
lapack.cpp:21930:62: warning: unused parameter ‘name__’ [-Wunused-parameter]
21930 | /* Subroutine */ integer iparmq_(integer *ispec, const char *name__, const char *opts, integer *n, integer
      |                                                  ~~~~~~~~~~~~^~~~~~
lapack.cpp:21930:82: warning: unused parameter ‘opts’ [-Wunused-parameter]
21930 | /* Subroutine */ integer iparmq_(integer *ispec, const char *name__, const char *opts, integer *n, integer
      |                                                                      ~~~~~~~~~~~~^~~~
lapack.cpp:21930:97: warning: unused parameter ‘n’ [-Wunused-parameter]
21930 | /* Subroutine */ integer iparmq_(integer *ispec, const char *name__, const char *opts, integer *n, integer
      |                                                                                        ~~~~~~~~~^
lapack.cpp:21931:38: warning: unused parameter ‘lwork’ [-Wunused-parameter]
21931 |         *ilo, integer *ihi, integer *lwork)
      |                             ~~~~~~~~~^~~~~
In file included from ../melder/melder.h:52,
                 from longchar.h:21,
                 from longchar.cpp:38:
../melder/melder_real.h:61:27: error: ‘numeric_limits’ is not a member of ‘std’
   61 |         double min = std::numeric_limits<double>::max();
      |                           ^~~~~~~~~~~~~~
../melder/melder_real.h:61:42: error: expected primary-expression before ‘double’
   61 |         double min = std::numeric_limits<double>::max();
      |                                          ^~~~~~
../melder/melder_real.h:62:27: error: ‘numeric_limits’ is not a member of ‘std’
   62 |         double max = std::numeric_limits<double>::lowest();
      |                           ^~~~~~~~~~~~~~
../melder/melder_real.h:62:42: error: expected primary-expression before ‘double’
   62 |         double max = std::numeric_limits<double>::lowest();
      |                                          ^~~~~~
make[3]: *** [<builtin>: lapack.o] Error 1
make[3]: *** [<builtin>: lapack_dg.o] Error 1
make[3]: Leaving directory '/<<PKGBUILDDIR>>/external/clapack'
make[2]: *** [Makefile:34: all-external] Error 2
make[2]: *** Waiting for unfinished jobs....
make[3]: *** [<builtin>: longchar.o] Error 1
make[3]: Leaving directory '/<<PKGBUILDDIR>>/kar'
make[2]: *** [Makefile:45: all-self] Error 2
make[2]: Leaving directory '/<<PKGBUILDDIR>>'
dh_auto_build: error: make -j4 "INSTALL=install --strip-program=true" returned exit code 2
make[1]: *** [debian/rules:70: override_dh_auto_build] Error 25
make[1]: Leaving directory '/<<PKGBUILDDIR>>'
make: *** [debian/rules:27: binary] Error 2
dpkg-buildpackage: error: debian/rules binary subprocess returned exit status 2