Bug#984219: llvm-toolchain-9: ftbfs with GCC-11

Wed Mar 3 16:15:12 GMT 2021

Package: src:llvm-toolchain-9
Version: 1:9.0.1-16
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/llvm-toolchain-9_9.0.1-16_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.

[...]
cd /<<PKGBUILDDIR>>/build-llvm/tools/clang/stage2-bins/tools/polly/lib/External && /<<PKGBUILDDIR>>/build-llvm/./bin/clang -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/<<PKGBUILDDIR>>/build-llvm/tools/clang/stage2-bins/tools/polly/lib/External -I/<<PKGBUILDDIR>>/polly/lib/External -I/<<PKGBUILDDIR>>/polly/lib/External/pet/include -I/<<PKGBUILDDIR>>/polly/lib/External/ppcg/include -I/<<PKGBUILDDIR>>/polly/lib/External/ppcg/imath -I/<<PKGBUILDDIR>>/build-llvm/tools/clang/stage2-bins/tools/polly/lib/External/ppcg -I/<<PKGBUILDDIR>>/polly/lib/External/isl -I/<<PKGBUILDDIR>>/polly/lib/External/isl/include -I/<<PKGBUILDDIR>>/polly/lib/External/isl/imath -I/<<PKGBUILDDIR>>/build-llvm/tools/clang/stage2-bins/tools/polly/lib/External/isl -I/<<PKGBUILDDIR>>/build-llvm/tools/clang/stage2-bins/tools/polly/include -I/<<PKGBUILDDIR>>/build-llvm/tools/clang/stage2-bins/tools/polly/lib/External/isl/include -I/<<PKGBUILDDIR>>/polly/include -I/<<PKGBUILDDIR>>/build-llvm/tools/clang/stage2-bins/include -I/<<PKGBUILDDIR>>/llvm/include -fuse-ld=gold -fPIC -Wno-unused-command-line-argument -Wno-unknown-warning-option -fPIC -Werror=date-time -Werror=unguarded-availability-new -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wmissing-field-initializers -pedantic -Wno-long-long -Wimplicit-fallthrough -Wcovered-switch-default -Wdelete-non-virtual-dtor -Wstring-conversion -ffunction-sections -fdata-sections -O2 -g -DNDEBUG -w -std=gnu99 -o CMakeFiles/PollyISL.dir/isl/isl_vec.c.o -c /<<PKGBUILDDIR>>/polly/lib/External/isl/isl_vec.c
[ 22%] Building CXX object tools/clang/utils/TableGen/CMakeFiles/obj.clang-tblgen.dir/TableGen.cpp.o
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cd /<<PKGBUILDDIR>>/build-llvm/tools/clang/stage2-bins/tools/lld/lib/ReaderWriter/MachO && /<<PKGBUILDDIR>>/build-llvm/./bin/clang++ -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/<<PKGBUILDDIR>>/build-llvm/tools/clang/stage2-bins/tools/lld/lib/ReaderWriter/MachO -I/<<PKGBUILDDIR>>/lld/lib/ReaderWriter/MachO -I/<<PKGBUILDDIR>>/lld/include -I/<<PKGBUILDDIR>>/build-llvm/tools/clang/stage2-bins/tools/lld/include -I/<<PKGBUILDDIR>>/build-llvm/tools/clang/stage2-bins/include -I/<<PKGBUILDDIR>>/llvm/include -I/<<PKGBUILDDIR>>/lld/lib/ReaderWriter/MachO/. -fuse-ld=gold -fPIC -Wno-unused-command-line-argument -Wno-unknown-warning-option -fPIC -fvisibility-inlines-hidden -Werror=date-time -Werror=unguarded-availability-new -std=c++11 -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -pedantic -Wno-long-long -Wimplicit-fallthrough -Wcovered-switch-default -Wno-class-memaccess -Wno-noexcept-type -Wnon-virtual-dtor -Wdelete-non-virtual-dtor -Wstring-conversion -ffunction-sections -fdata-sections -O2 -DNDEBUG -g1  -fno-exceptions -o CMakeFiles/lldMachO.dir/StubsPass.cpp.o -c /<<PKGBUILDDIR>>/lld/lib/ReaderWriter/MachO/StubsPass.cpp
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cd /<<PKGBUILDDIR>>/build-llvm/tools/clang/stage2-bins/tools/lld/lib/ReaderWriter/MachO && /<<PKGBUILDDIR>>/build-llvm/./bin/clang++ -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/<<PKGBUILDDIR>>/build-llvm/tools/clang/stage2-bins/tools/lld/lib/ReaderWriter/MachO -I/<<PKGBUILDDIR>>/lld/lib/ReaderWriter/MachO -I/<<PKGBUILDDIR>>/lld/include -I/<<PKGBUILDDIR>>/build-llvm/tools/clang/stage2-bins/tools/lld/include -I/<<PKGBUILDDIR>>/build-llvm/tools/clang/stage2-bins/include -I/<<PKGBUILDDIR>>/llvm/include -I/<<PKGBUILDDIR>>/lld/lib/ReaderWriter/MachO/. -fuse-ld=gold -fPIC -Wno-unused-command-line-argument -Wno-unknown-warning-option -fPIC -fvisibility-inlines-hidden -Werror=date-time -Werror=unguarded-availability-new -std=c++11 -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -pedantic -Wno-long-long -Wimplicit-fallthrough -Wcovered-switch-default -Wno-class-memaccess -Wno-noexcept-type -Wnon-virtual-dtor -Wdelete-non-virtual-dtor -Wstring-conversion -ffunction-sections -fdata-sections -O2 -DNDEBUG -g1  -fno-exceptions -o CMakeFiles/lldMachO.dir/TLVPass.cpp.o -c /<<PKGBUILDDIR>>/lld/lib/ReaderWriter/MachO/TLVPass.cpp
[ 22%] Building CXX object tools/lld/lib/ReaderWriter/MachO/CMakeFiles/lldMachO.dir/WriterMachO.cpp.o
cd /<<PKGBUILDDIR>>/build-llvm/tools/clang/stage2-bins/tools/lld/lib/ReaderWriter/MachO && /<<PKGBUILDDIR>>/build-llvm/./bin/clang++ -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/<<PKGBUILDDIR>>/build-llvm/tools/clang/stage2-bins/tools/lld/lib/ReaderWriter/MachO -I/<<PKGBUILDDIR>>/lld/lib/ReaderWriter/MachO -I/<<PKGBUILDDIR>>/lld/include -I/<<PKGBUILDDIR>>/build-llvm/tools/clang/stage2-bins/tools/lld/include -I/<<PKGBUILDDIR>>/build-llvm/tools/clang/stage2-bins/include -I/<<PKGBUILDDIR>>/llvm/include -I/<<PKGBUILDDIR>>/lld/lib/ReaderWriter/MachO/. -fuse-ld=gold -fPIC -Wno-unused-command-line-argument -Wno-unknown-warning-option -fPIC -fvisibility-inlines-hidden -Werror=date-time -Werror=unguarded-availability-new -std=c++11 -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -pedantic -Wno-long-long -Wimplicit-fallthrough -Wcovered-switch-default -Wno-class-memaccess -Wno-noexcept-type -Wnon-virtual-dtor -Wdelete-non-virtual-dtor -Wstring-conversion -ffunction-sections -fdata-sections -O2 -DNDEBUG -g1  -fno-exceptions -o CMakeFiles/lldMachO.dir/WriterMachO.cpp.o -c /<<PKGBUILDDIR>>/lld/lib/ReaderWriter/MachO/WriterMachO.cpp
[ 22%] Linking CXX static library ../../../../../lib/liblldMachO.a
cd /<<PKGBUILDDIR>>/build-llvm/tools/clang/stage2-bins/tools/lld/lib/ReaderWriter/MachO && /usr/bin/cmake -P CMakeFiles/lldMachO.dir/cmake_clean_target.cmake
cd /<<PKGBUILDDIR>>/build-llvm/tools/clang/stage2-bins/tools/lld/lib/ReaderWriter/MachO && /usr/bin/cmake -E cmake_link_script CMakeFiles/lldMachO.dir/link.txt --verbose=1
/usr/bin/ar Dqc ../../../../../lib/liblldMachO.a CMakeFiles/lldMachO.dir/ArchHandler.cpp.o CMakeFiles/lldMachO.dir/ArchHandler_arm.cpp.o CMakeFiles/lldMachO.dir/ArchHandler_arm64.cpp.o CMakeFiles/lldMachO.dir/ArchHandler_x86.cpp.o CMakeFiles/lldMachO.dir/ArchHandler_x86_64.cpp.o CMakeFiles/lldMachO.dir/CompactUnwindPass.cpp.o CMakeFiles/lldMachO.dir/GOTPass.cpp.o CMakeFiles/lldMachO.dir/LayoutPass.cpp.o CMakeFiles/lldMachO.dir/MachOLinkingContext.cpp.o CMakeFiles/lldMachO.dir/MachONormalizedFileBinaryReader.cpp.o CMakeFiles/lldMachO.dir/MachONormalizedFileBinaryWriter.cpp.o CMakeFiles/lldMachO.dir/MachONormalizedFileFromAtoms.cpp.o CMakeFiles/lldMachO.dir/MachONormalizedFileToAtoms.cpp.o CMakeFiles/lldMachO.dir/MachONormalizedFileYAML.cpp.o CMakeFiles/lldMachO.dir/ObjCPass.cpp.o CMakeFiles/lldMachO.dir/ShimPass.cpp.o CMakeFiles/lldMachO.dir/StubsPass.cpp.o CMakeFiles/lldMachO.dir/TLVPass.cpp.o CMakeFiles/lldMachO.dir/WriterMachO.cpp.o
/usr/bin/ranlib -D ../../../../../lib/liblldMachO.a
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