Bug#984099: libebml: ftbfs with GCC-11
Package: src:libebml
Version: 1.4.2-1
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/libebml_1.4.2-1_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.
[...]
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Scanning dependencies of target ebml
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[ 4%] Building CXX object CMakeFiles/ebml.dir/src/EbmlContexts.cpp.o
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[ 58%] Building CXX object CMakeFiles/ebml.dir/src/EbmlSubHead.cpp.o
/usr/bin/c++ -Debml_EXPORTS -I/<<PKGBUILDDIR>>/obj-x86_64-linux-gnu -I/<<PKGBUILDDIR>> -g -O2 -ffile-prefix-map=/<<PKGBUILDDIR>>=. -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -fPIC -fvisibility=hidden -fvisibility-inlines-hidden -std=gnu++11 -o CMakeFiles/ebml.dir/src/EbmlSubHead.cpp.o -c /<<PKGBUILDDIR>>/src/EbmlSubHead.cpp
/<<PKGBUILDDIR>>/src/EbmlString.cpp: In member function ‘virtual filepos_t libebml::EbmlString::ReadData(libebml::IOCallback&, libebml::ScopeMode)’:
/<<PKGBUILDDIR>>/src/EbmlString.cpp:147:41: error: ‘numeric_limits’ is not a member of ‘std’
147 | auto Buffer = (GetSize() + 1 < std::numeric_limits<std::size_t>::max()) ? new (std::nothrow) char[GetSize() + 1] : nullptr;
| ^~~~~~~~~~~~~~
/<<PKGBUILDDIR>>/src/EbmlString.cpp:147:67: error: expected primary-expression before ‘>’ token
147 | auto Buffer = (GetSize() + 1 < std::numeric_limits<std::size_t>::max()) ? new (std::nothrow) char[GetSize() + 1] : nullptr;
| ^
/<<PKGBUILDDIR>>/src/EbmlString.cpp:147:70: error: ‘::max’ has not been declared; did you mean ‘std::max’?
147 | auto Buffer = (GetSize() + 1 < std::numeric_limits<std::size_t>::max()) ? new (std::nothrow) char[GetSize() + 1] : nullptr;
| ^~~
| std::max
In file included from /usr/include/c++/11/algorithm:62,
from /<<PKGBUILDDIR>>/ebml/EbmlEndian.h:41,
from /<<PKGBUILDDIR>>/ebml/EbmlTypes.h:38,
from /<<PKGBUILDDIR>>/ebml/EbmlString.h:41,
from /<<PKGBUILDDIR>>/src/EbmlString.cpp:38:
/usr/include/c++/11/bits/stl_algo.h:3467:5: note: ‘std::max’ declared here
3467 | max(initializer_list<_Tp> __l, _Compare __comp)
| ^~~
/<<PKGBUILDDIR>>/src/EbmlString.cpp:157:17: error: type ‘<type error>’ argument given to ‘delete’, expected pointer
157 | delete [] Buffer;
| ^~~~~~
make[3]: *** [CMakeFiles/ebml.dir/build.make:241: CMakeFiles/ebml.dir/src/EbmlString.cpp.o] Error 1
make[3]: *** Waiting for unfinished jobs....
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make[2]: Leaving directory '/<<PKGBUILDDIR>>/obj-x86_64-linux-gnu'
make[1]: *** [Makefile:152: all] Error 2
make[1]: Leaving directory '/<<PKGBUILDDIR>>/obj-x86_64-linux-gnu'
dh_auto_build: error: cd obj-x86_64-linux-gnu && make -j4 "INSTALL=install --strip-program=true" VERBOSE=1 returned exit code 2
make: *** [debian/rules:4: binary] Error 25
dpkg-buildpackage: error: debian/rules binary subprocess returned exit status 2
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