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Bug#984180: htdig: ftbfs with GCC-11



Package: src:htdig
Version: 1:3.2.0b6-18
Severity: normal
Tags: sid bookworm
User: debian-gcc@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/htdig_3.2.0b6-18_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.

[...]
In file included from WordDBPage.h:33,
                 from WordDBCompress.cc:22:
WordBitCompress.h:31:23: note:                 ‘typedef unsigned char byte’
   31 | typedef unsigned char byte;
      |                       ^~~~
In file included from WordDBCompress.cc:22:
WordDBPage.h:387:15: error: ‘gotdata’ was not declared in this scope; did you mean ‘getdate’?
  387 |         byte *gotdata=new byte[len];
      |               ^~~~~~~
      |               getdate
WordDBPage.h:387:27: error: reference to ‘byte’ is ambiguous
  387 |         byte *gotdata=new byte[len];
      |                           ^~~~
In file included from /usr/include/c++/11/bits/stl_algobase.h:61,
                 from /usr/include/c++/11/bits/char_traits.h:39,
                 from /usr/include/c++/11/ios:40,
                 from /usr/include/c++/11/ostream:38,
                 from /usr/include/c++/11/iostream:39,
                 from ../htlib/htString.h:23,
                 from ../htlib/HtPack.h:26,
                 from WordRecord.h:43,
                 from WordDBPage.h:34,
                 from WordDBCompress.cc:22:
/usr/include/c++/11/bits/cpp_type_traits.h:404:30: note: candidates are: ‘enum class std::byte’
  404 |   enum class byte : unsigned char;
      |                              ^~~~
In file included from WordDBPage.h:33,
                 from WordDBCompress.cc:22:
WordBitCompress.h:31:23: note:                 ‘typedef unsigned char byte’
   31 | typedef unsigned char byte;
      |                       ^~~~
In file included from WordDBCompress.cc:22:
WordDBPage.h:392:19: error: type ‘<type error>’ argument given to ‘delete’, expected pointer
  392 |         delete [] gotdata;
      |                   ^~~~~~~
WordDBPage.h: In constructor ‘WordDBPage::WordDBPage(int)’:
WordDBPage.h:491:25: error: reference to ‘byte’ is ambiguous
  491 |         pg=(PAGE *)(new byte[pgsz]);
      |                         ^~~~
In file included from /usr/include/c++/11/bits/stl_algobase.h:61,
                 from /usr/include/c++/11/bits/char_traits.h:39,
                 from /usr/include/c++/11/ios:40,
                 from /usr/include/c++/11/ostream:38,
                 from /usr/include/c++/11/iostream:39,
                 from ../htlib/htString.h:23,
                 from ../htlib/HtPack.h:26,
                 from WordRecord.h:43,
                 from WordDBPage.h:34,
                 from WordDBCompress.cc:22:
/usr/include/c++/11/bits/cpp_type_traits.h:404:30: note: candidates are: ‘enum class std::byte’
  404 |   enum class byte : unsigned char;
      |                              ^~~~
In file included from WordDBPage.h:33,
                 from WordDBCompress.cc:22:
WordBitCompress.h:31:23: note:                 ‘typedef unsigned char byte’
   31 | typedef unsigned char byte;
      |                       ^~~~
In file included from WordDBCompress.cc:22:
WordDBPage.h:491:29: error: expected ‘)’ before ‘[’ token
  491 |         pg=(PAGE *)(new byte[pgsz]);
      |                             ^
WordDBPage.h:491:20: note: to match this ‘(’
  491 |         pg=(PAGE *)(new byte[pgsz]);
      |                    ^
make[2]: *** [Makefile:523: WordDBCompress.lo] Error 1
make[2]: Leaving directory '/<<PKGBUILDDIR>>/htword'
make[1]: *** [Makefile:451: all-recursive] Error 1
make[1]: Leaving directory '/<<PKGBUILDDIR>>'
make: *** [debian/rules:20: build-stamp] Error 2
dpkg-buildpackage: error: debian/rules build subprocess returned exit status 2


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