#1134287 jsonnet: FTBFS: undefined reference to `c4::is_debugger_attached()'

#1134287#5
Date:
2026-04-18 17:31:48 UTC
From:
To:
Dear maintainer:

During a rebuild of all packages in unstable, this package failed to build.

Below you will find the last part of the build log (probably the most
relevant part, but not necessarily). If required, the full build log
is available here:

https://people.debian.org/~sanvila/build-logs/202604/

About the archive rebuild: The build was made on virtual machines from AWS,
using sbuild and a reduced chroot with only build-essential packages.

If you cannot reproduce the bug please contact me privately, as I
am willing to provide ssh access to a virtual machine where the bug is
fully reproducible.

If this is really a bug in one of the build-depends, please use
reassign and add an affects on src:jsonnet, so that this is still
visible in the BTS web page for this package.

Thanks.
--------------------------------------------------------------------------------
[...]
 debian/rules clean
dh clean -Scmake --with python3
   debian/rules override_dh_auto_clean
make[1]: Entering directory '/<<PKGBUILDDIR>>'
dh_auto_clean -O-Scmake
dh_auto_clean -O-Smakefile
	make -j2 clean
make[2]: Entering directory '/<<PKGBUILDDIR>>'
rm -rvf */*~ *~ .*~ */.*.swp .*.swp libjsonnet_test_snippet  [too-long-redacted] egg-info jsonnet-bin.tar.gz man
make[2]: Leaving directory '/<<PKGBUILDDIR>>'
make[1]: Leaving directory '/<<PKGBUILDDIR>>'
   dh_clean -O-Scmake
 debian/rules binary
dh binary -Scmake --with python3
   dh_update_autotools_config -O-Scmake

[... snipped ...]

   24 | namespace jsonnet::internal {
      |           ^~~~~~~
/<<PKGBUILDDIR>>/core/lexer.h:32:11: warning: nested namespace definitions only available with ‘-std=c++17’ or ‘-std=gnu++17’ [-Wc++17-extensions]
   32 | namespace jsonnet::internal {
      |           ^~~~~~~
/<<PKGBUILDDIR>>/core/ast.h:32:11: warning: nested namespace definitions only available with ‘-std=c++17’ or ‘-std=gnu++17’ [-Wc++17-extensions]
   32 | namespace jsonnet::internal {
      |           ^~~~~~~
/<<PKGBUILDDIR>>/core/pass.h:22:11: warning: nested namespace definitions only available with ‘-std=c++17’ or ‘-std=gnu++17’ [-Wc++17-extensions]
   22 | namespace jsonnet::internal {
      |           ^~~~~~~
/<<PKGBUILDDIR>>/core/pass.cpp:19:11: warning: nested namespace definitions only available with ‘-std=c++17’ or ‘-std=gnu++17’ [-Wc++17-extensions]
   19 | namespace jsonnet::internal {
      |           ^~~~~~~
/<<PKGBUILDDIR>>/core/pass.h:22:11: warning: nested namespace definitions only available with ‘-std=c++17’ or ‘-std=gnu++17’ [-Wc++17-extensions]
   22 | namespace jsonnet::internal {
      |           ^~~~~~~
/<<PKGBUILDDIR>>/core/pass.cpp:19:11: warning: nested namespace definitions only available with ‘-std=c++17’ or ‘-std=gnu++17’ [-Wc++17-extensions]
   19 | namespace jsonnet::internal {
      |           ^~~~~~~
[ 36%] Building CXX object core/CMakeFiles/libjsonnet.dir/static_analysis.cpp.o
cd /<<PKGBUILDDIR>>/obj-x86_64-linux-gnu/core && /usr/bin/c++ -Dlibjsonnet_EXPORTS -I/<<PKGBUILDDIR>>/include -I/<<PKGBUILDDIR>>/third_party/md5 -I/<<PKGBUILDDIR>>/core -I/<<PKGBUILDDIR>>/cpp -g -O2 -ffile-prefix-map=/<<PKGBUILDDIR>>=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -Ithird_party/md5 -I/usr/include/nlohmann -Iinclude -fPIC -DC4CORE_NO_FAST_FLOAT -DNDEBUG -Wdate-time -D_FORTIFY_SOURCE=2 -Wdate-time -D_FORTIFY_SOURCE=2 -g -Wall -Wextra -Woverloaded-virtual -pedantic -std=c++11 -fPIC -O3 -std=gnu++11 -fPIC -MD -MT core/CMakeFiles/libjsonnet.dir/static_analysis.cpp.o -MF CMakeFiles/libjsonnet.dir/static_analysis.cpp.o.d -o CMakeFiles/libjsonnet.dir/static_analysis.cpp.o -c /<<PKGBUILDDIR>>/core/static_analysis.cpp
[ 38%] Building CXX object core/CMakeFiles/libjsonnet_static.dir/static_analysis.cpp.o
cd /<<PKGBUILDDIR>>/obj-x86_64-linux-gnu/core && /usr/bin/c++  -I/<<PKGBUILDDIR>>/include -I/<<PKGBUILDDIR>>/third_party/md5 -I/<<PKGBUILDDIR>>/core -I/<<PKGBUILDDIR>>/cpp -g -O2 -ffile-prefix-map=/<<PKGBUILDDIR>>=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -Ithird_party/md5 -I/usr/include/nlohmann -Iinclude -fPIC -DC4CORE_NO_FAST_FLOAT -DNDEBUG -Wdate-time -D_FORTIFY_SOURCE=2 -Wdate-time -D_FORTIFY_SOURCE=2 -g -Wall -Wextra -Woverloaded-virtual -pedantic -std=c++11 -fPIC -O3 -std=gnu++11 -MD -MT core/CMakeFiles/libjsonnet_static.dir/static_analysis.cpp.o -MF CMakeFiles/libjsonnet_static.dir/static_analysis.cpp.o.d -o CMakeFiles/libjsonnet_static.dir/static_analysis.cpp.o -c /<<PKGBUILDDIR>>/core/static_analysis.cpp
In file included from /<<PKGBUILDDIR>>/core/lexer.h:29,
                 from /<<PKGBUILDDIR>>/core/ast.h:29,
                 from /<<PKGBUILDDIR>>/core/static_analysis.cpp:19:
/<<PKGBUILDDIR>>/core/static_error.h:23:11: warning: nested namespace definitions only available with ‘-std=c++17’ or ‘-std=gnu++17’ [-Wc++17-extensions]
   23 | namespace jsonnet::internal {
      |           ^~~~~~~
In file included from /<<PKGBUILDDIR>>/core/lexer.h:30:
/<<PKGBUILDDIR>>/core/unicode.h:24:11: warning: nested namespace definitions only available with ‘-std=c++17’ or ‘-std=gnu++17’ [-Wc++17-extensions]
   24 | namespace jsonnet::internal {
      |           ^~~~~~~
/<<PKGBUILDDIR>>/core/lexer.h:32:11: warning: nested namespace definitions only available with ‘-std=c++17’ or ‘-std=gnu++17’ [-Wc++17-extensions]
   32 | namespace jsonnet::internal {
      |           ^~~~~~~
/<<PKGBUILDDIR>>/core/ast.h:32:11: warning: nested namespace definitions only available with ‘-std=c++17’ or ‘-std=gnu++17’ [-Wc++17-extensions]
   32 | namespace jsonnet::internal {
      |           ^~~~~~~
In file included from /<<PKGBUILDDIR>>/core/lexer.h:29,
                 from /<<PKGBUILDDIR>>/core/ast.h:29,
                 from /<<PKGBUILDDIR>>/core/static_analysis.cpp:19:
/<<PKGBUILDDIR>>/core/static_error.h:23:11: warning: nested namespace definitions only available with ‘-std=c++17’ or ‘-std=gnu++17’ [-Wc++17-extensions]
   23 | namespace jsonnet::internal {
      |           ^~~~~~~
In file included from /<<PKGBUILDDIR>>/core/lexer.h:30:
/<<PKGBUILDDIR>>/core/unicode.h:24:11: warning: nested namespace definitions only available with ‘-std=c++17’ or ‘-std=gnu++17’ [-Wc++17-extensions]
   24 | namespace jsonnet::internal {
      |           ^~~~~~~
/<<PKGBUILDDIR>>/core/lexer.h:32:11: warning: nested namespace definitions only available with ‘-std=c++17’ or ‘-std=gnu++17’ [-Wc++17-extensions]
   32 | namespace jsonnet::internal {
      |           ^~~~~~~
In file included from /<<PKGBUILDDIR>>/core/static_analysis.cpp:20:
/<<PKGBUILDDIR>>/core/static_analysis.h:22:11: warning: nested namespace definitions only available with ‘-std=c++17’ or ‘-std=gnu++17’ [-Wc++17-extensions]
   22 | namespace jsonnet::internal {
      |           ^~~~~~~
/<<PKGBUILDDIR>>/core/static_analysis.cpp:23:11: warning: nested namespace definitions only available with ‘-std=c++17’ or ‘-std=gnu++17’ [-Wc++17-extensions]
   23 | namespace jsonnet::internal {
      |           ^~~~~~~
/<<PKGBUILDDIR>>/core/ast.h:32:11: warning: nested namespace definitions only available with ‘-std=c++17’ or ‘-std=gnu++17’ [-Wc++17-extensions]
   32 | namespace jsonnet::internal {
      |           ^~~~~~~
In file included from /<<PKGBUILDDIR>>/core/static_analysis.cpp:20:
/<<PKGBUILDDIR>>/core/static_analysis.h:22:11: warning: nested namespace definitions only available with ‘-std=c++17’ or ‘-std=gnu++17’ [-Wc++17-extensions]
   22 | namespace jsonnet::internal {
      |           ^~~~~~~
/<<PKGBUILDDIR>>/core/static_analysis.cpp:23:11: warning: nested namespace definitions only available with ‘-std=c++17’ or ‘-std=gnu++17’ [-Wc++17-extensions]
   23 | namespace jsonnet::internal {
      |           ^~~~~~~
[ 40%] Building CXX object core/CMakeFiles/libjsonnet.dir/string_utils.cpp.o
cd /<<PKGBUILDDIR>>/obj-x86_64-linux-gnu/core && /usr/bin/c++ -Dlibjsonnet_EXPORTS -I/<<PKGBUILDDIR>>/include -I/<<PKGBUILDDIR>>/third_party/md5 -I/<<PKGBUILDDIR>>/core -I/<<PKGBUILDDIR>>/cpp -g -O2 -ffile-prefix-map=/<<PKGBUILDDIR>>=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -Ithird_party/md5 -I/usr/include/nlohmann -Iinclude -fPIC -DC4CORE_NO_FAST_FLOAT -DNDEBUG -Wdate-time -D_FORTIFY_SOURCE=2 -Wdate-time -D_FORTIFY_SOURCE=2 -g -Wall -Wextra -Woverloaded-virtual -pedantic -std=c++11 -fPIC -O3 -std=gnu++11 -fPIC -MD -MT core/CMakeFiles/libjsonnet.dir/string_utils.cpp.o -MF CMakeFiles/libjsonnet.dir/string_utils.cpp.o.d -o CMakeFiles/libjsonnet.dir/string_utils.cpp.o -c /<<PKGBUILDDIR>>/core/string_utils.cpp
[ 42%] Building CXX object core/CMakeFiles/libjsonnet_static.dir/string_utils.cpp.o
cd /<<PKGBUILDDIR>>/obj-x86_64-linux-gnu/core && /usr/bin/c++  -I/<<PKGBUILDDIR>>/include -I/<<PKGBUILDDIR>>/third_party/md5 -I/<<PKGBUILDDIR>>/core -I/<<PKGBUILDDIR>>/cpp -g -O2 -ffile-prefix-map=/<<PKGBUILDDIR>>=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -Ithird_party/md5 -I/usr/include/nlohmann -Iinclude -fPIC -DC4CORE_NO_FAST_FLOAT -DNDEBUG -Wdate-time -D_FORTIFY_SOURCE=2 -Wdate-time -D_FORTIFY_SOURCE=2 -g -Wall -Wextra -Woverloaded-virtual -pedantic -std=c++11 -fPIC -O3 -std=gnu++11 -MD -MT core/CMakeFiles/libjsonnet_static.dir/string_utils.cpp.o -MF CMakeFiles/libjsonnet_static.dir/string_utils.cpp.o.d -o CMakeFiles/libjsonnet_static.dir/string_utils.cpp.o -c /<<PKGBUILDDIR>>/core/string_utils.cpp
In file included from /<<PKGBUILDDIR>>/core/string_utils.cpp:19:
/<<PKGBUILDDIR>>/core/static_error.h:23:11: warning: nested namespace definitions only available with ‘-std=c++17’ or ‘-std=gnu++17’ [-Wc++17-extensions]
   23 | namespace jsonnet::internal {
      |           ^~~~~~~
In file included from /<<PKGBUILDDIR>>/core/lexer.h:30,
                 from /<<PKGBUILDDIR>>/core/string_utils.h:20,
                 from /<<PKGBUILDDIR>>/core/string_utils.cpp:20:
/<<PKGBUILDDIR>>/core/unicode.h:24:11: warning: nested namespace definitions only available with ‘-std=c++17’ or ‘-std=gnu++17’ [-Wc++17-extensions]
   24 | namespace jsonnet::internal {
      |           ^~~~~~~
/<<PKGBUILDDIR>>/core/lexer.h:32:11: warning: nested namespace definitions only available with ‘-std=c++17’ or ‘-std=gnu++17’ [-Wc++17-extensions]
   32 | namespace jsonnet::internal {
      |           ^~~~~~~
/<<PKGBUILDDIR>>/core/string_utils.h:22:11: warning: nested namespace definitions only available with ‘-std=c++17’ or ‘-std=gnu++17’ [-Wc++17-extensions]
   22 | namespace jsonnet::internal {
      |           ^~~~~~~
/<<PKGBUILDDIR>>/core/string_utils.cpp:22:11: warning: nested namespace definitions only available with ‘-std=c++17’ or ‘-std=gnu++17’ [-Wc++17-extensions]
   22 | namespace jsonnet::internal {
      |           ^~~~~~~
In file included from /<<PKGBUILDDIR>>/core/string_utils.cpp:19:
/<<PKGBUILDDIR>>/core/static_error.h:23:11: warning: nested namespace definitions only available with ‘-std=c++17’ or ‘-std=gnu++17’ [-Wc++17-extensions]
   23 | namespace jsonnet::internal {
      |           ^~~~~~~
In file included from /<<PKGBUILDDIR>>/core/lexer.h:30,
                 from /<<PKGBUILDDIR>>/core/string_utils.h:20,
                 from /<<PKGBUILDDIR>>/core/string_utils.cpp:20:
/<<PKGBUILDDIR>>/core/unicode.h:24:11: warning: nested namespace definitions only available with ‘-std=c++17’ or ‘-std=gnu++17’ [-Wc++17-extensions]
   24 | namespace jsonnet::internal {
      |           ^~~~~~~
/<<PKGBUILDDIR>>/core/lexer.h:32:11: warning: nested namespace definitions only available with ‘-std=c++17’ or ‘-std=gnu++17’ [-Wc++17-extensions]
   32 | namespace jsonnet::internal {
      |           ^~~~~~~
/<<PKGBUILDDIR>>/core/string_utils.h:22:11: warning: nested namespace definitions only available with ‘-std=c++17’ or ‘-std=gnu++17’ [-Wc++17-extensions]
   22 | namespace jsonnet::internal {
      |           ^~~~~~~
/<<PKGBUILDDIR>>/core/string_utils.cpp:22:11: warning: nested namespace definitions only available with ‘-std=c++17’ or ‘-std=gnu++17’ [-Wc++17-extensions]
   22 | namespace jsonnet::internal {
      |           ^~~~~~~
[ 44%] Building CXX object core/CMakeFiles/libjsonnet.dir/vm.cpp.o
cd /<<PKGBUILDDIR>>/obj-x86_64-linux-gnu/core && /usr/bin/c++ -Dlibjsonnet_EXPORTS -I/<<PKGBUILDDIR>>/include -I/<<PKGBUILDDIR>>/third_party/md5 -I/<<PKGBUILDDIR>>/core -I/<<PKGBUILDDIR>>/cpp -g -O2 -ffile-prefix-map=/<<PKGBUILDDIR>>=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -Ithird_party/md5 -I/usr/include/nlohmann -Iinclude -fPIC -DC4CORE_NO_FAST_FLOAT -DNDEBUG -Wdate-time -D_FORTIFY_SOURCE=2 -Wdate-time -D_FORTIFY_SOURCE=2 -g -Wall -Wextra -Woverloaded-virtual -pedantic -std=c++11 -fPIC -O3 -std=gnu++11 -fPIC -MD -MT core/CMakeFiles/libjsonnet.dir/vm.cpp.o -MF CMakeFiles/libjsonnet.dir/vm.cpp.o.d -o CMakeFiles/libjsonnet.dir/vm.cpp.o -c /<<PKGBUILDDIR>>/core/vm.cpp
[ 46%] Building CXX object core/CMakeFiles/libjsonnet_static.dir/vm.cpp.o
cd /<<PKGBUILDDIR>>/obj-x86_64-linux-gnu/core && /usr/bin/c++  -I/<<PKGBUILDDIR>>/include -I/<<PKGBUILDDIR>>/third_party/md5 -I/<<PKGBUILDDIR>>/core -I/<<PKGBUILDDIR>>/cpp -g -O2 -ffile-prefix-map=/<<PKGBUILDDIR>>=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -Ithird_party/md5 -I/usr/include/nlohmann -Iinclude -fPIC -DC4CORE_NO_FAST_FLOAT -DNDEBUG -Wdate-time -D_FORTIFY_SOURCE=2 -Wdate-time -D_FORTIFY_SOURCE=2 -g -Wall -Wextra -Woverloaded-virtual -pedantic -std=c++11 -fPIC -O3 -std=gnu++11 -MD -MT core/CMakeFiles/libjsonnet_static.dir/vm.cpp.o -MF CMakeFiles/libjsonnet_static.dir/vm.cpp.o.d -o CMakeFiles/libjsonnet_static.dir/vm.cpp.o -c /<<PKGBUILDDIR>>/core/vm.cpp
In file included from /<<PKGBUILDDIR>>/core/lexer.h:29,
                 from /<<PKGBUILDDIR>>/core/ast.h:29,
                 from /<<PKGBUILDDIR>>/core/desugarer.h:23,
                 from /<<PKGBUILDDIR>>/core/vm.cpp:24:
/<<PKGBUILDDIR>>/core/static_error.h:23:11: warning: nested namespace definitions only available with ‘-std=c++17’ or ‘-std=gnu++17’ [-Wc++17-extensions]
   23 | namespace jsonnet::internal {
      |           ^~~~~~~
In file included from /<<PKGBUILDDIR>>/core/lexer.h:30:
/<<PKGBUILDDIR>>/core/unicode.h:24:11: warning: nested namespace definitions only available with ‘-std=c++17’ or ‘-std=gnu++17’ [-Wc++17-extensions]
   24 | namespace jsonnet::internal {
      |           ^~~~~~~
/<<PKGBUILDDIR>>/core/lexer.h:32:11: warning: nested namespace definitions only available with ‘-std=c++17’ or ‘-std=gnu++17’ [-Wc++17-extensions]
   32 | namespace jsonnet::internal {
      |           ^~~~~~~
/<<PKGBUILDDIR>>/core/ast.h:32:11: warning: nested namespace definitions only available with ‘-std=c++17’ or ‘-std=gnu++17’ [-Wc++17-extensions]
   32 | namespace jsonnet::internal {
      |           ^~~~~~~
In file included from /<<PKGBUILDDIR>>/core/lexer.h:29,
                 from /<<PKGBUILDDIR>>/core/ast.h:29,
                 from /<<PKGBUILDDIR>>/core/desugarer.h:23,
                 from /<<PKGBUILDDIR>>/core/vm.cpp:24:
/<<PKGBUILDDIR>>/core/static_error.h:23:11: warning: nested namespace definitions only available with ‘-std=c++17’ or ‘-std=gnu++17’ [-Wc++17-extensions]
   23 | namespace jsonnet::internal {
      |           ^~~~~~~
In file included from /<<PKGBUILDDIR>>/core/lexer.h:30:
/<<PKGBUILDDIR>>/core/unicode.h:24:11: warning: nested namespace definitions only available with ‘-std=c++17’ or ‘-std=gnu++17’ [-Wc++17-extensions]
   24 | namespace jsonnet::internal {
      |           ^~~~~~~
/<<PKGBUILDDIR>>/core/lexer.h:32:11: warning: nested namespace definitions only available with ‘-std=c++17’ or ‘-std=gnu++17’ [-Wc++17-extensions]
   32 | namespace jsonnet::internal {
      |           ^~~~~~~
/<<PKGBUILDDIR>>/core/ast.h:32:11: warning: nested namespace definitions only available with ‘-std=c++17’ or ‘-std=gnu++17’ [-Wc++17-extensions]
   32 | namespace jsonnet::internal {
      |           ^~~~~~~
In file included from /<<PKGBUILDDIR>>/core/desugarer.h:24:
/<<PKGBUILDDIR>>/core/vm.h:24:11: warning: nested namespace definitions only available with ‘-std=c++17’ or ‘-std=gnu++17’ [-Wc++17-extensions]
   24 | namespace jsonnet::internal {
      |           ^~~~~~~
/<<PKGBUILDDIR>>/core/desugarer.h:26:11: warning: nested namespace definitions only available with ‘-std=c++17’ or ‘-std=gnu++17’ [-Wc++17-extensions]
   26 | namespace jsonnet::internal {
      |           ^~~~~~~
In file included from /<<PKGBUILDDIR>>/core/desugarer.h:24:
/<<PKGBUILDDIR>>/core/vm.h:24:11: warning: nested namespace definitions only available with ‘-std=c++17’ or ‘-std=gnu++17’ [-Wc++17-extensions]
   24 | namespace jsonnet::internal {
      |           ^~~~~~~
/<<PKGBUILDDIR>>/core/desugarer.h:26:11: warning: nested namespace definitions only available with ‘-std=c++17’ or ‘-std=gnu++17’ [-Wc++17-extensions]
   26 | namespace jsonnet::internal {
      |           ^~~~~~~
In file included from /<<PKGBUILDDIR>>/core/vm.cpp:28:
/<<PKGBUILDDIR>>/core/parser.h:26:11: warning: nested namespace definitions only available with ‘-std=c++17’ or ‘-std=gnu++17’ [-Wc++17-extensions]
   26 | namespace jsonnet::internal {
      |           ^~~~~~~
In file included from /<<PKGBUILDDIR>>/core/vm.cpp:28:
/<<PKGBUILDDIR>>/core/parser.h:26:11: warning: nested namespace definitions only available with ‘-std=c++17’ or ‘-std=gnu++17’ [-Wc++17-extensions]
   26 | namespace jsonnet::internal {
      |           ^~~~~~~
In file included from /<<PKGBUILDDIR>>/core/vm.cpp:31:
/<<PKGBUILDDIR>>/core/state.h:20:11: warning: nested namespace definitions only available with ‘-std=c++17’ or ‘-std=gnu++17’ [-Wc++17-extensions]
   20 | namespace jsonnet::internal {
      |           ^~~~~~~
In file included from /<<PKGBUILDDIR>>/core/vm.cpp:32:
/<<PKGBUILDDIR>>/core/static_analysis.h:22:11: warning: nested namespace definitions only available with ‘-std=c++17’ or ‘-std=gnu++17’ [-Wc++17-extensions]
   22 | namespace jsonnet::internal {
      |           ^~~~~~~
In file included from /<<PKGBUILDDIR>>/core/vm.cpp:33:
/<<PKGBUILDDIR>>/core/string_utils.h:22:11: warning: nested namespace definitions only available with ‘-std=c++17’ or ‘-std=gnu++17’ [-Wc++17-extensions]
   22 | namespace jsonnet::internal {
      |           ^~~~~~~
/<<PKGBUILDDIR>>/core/vm.cpp:36:11: warning: nested namespace definitions only available with ‘-std=c++17’ or ‘-std=gnu++17’ [-Wc++17-extensions]
   36 | namespace jsonnet::internal {
      |           ^~~~~~~
In file included from /<<PKGBUILDDIR>>/core/vm.cpp:31:
/<<PKGBUILDDIR>>/core/state.h:20:11: warning: nested namespace definitions only available with ‘-std=c++17’ or ‘-std=gnu++17’ [-Wc++17-extensions]
   20 | namespace jsonnet::internal {
      |           ^~~~~~~
In file included from /<<PKGBUILDDIR>>/core/vm.cpp:32:
/<<PKGBUILDDIR>>/core/static_analysis.h:22:11: warning: nested namespace definitions only available with ‘-std=c++17’ or ‘-std=gnu++17’ [-Wc++17-extensions]
   22 | namespace jsonnet::internal {
      |           ^~~~~~~
In file included from /<<PKGBUILDDIR>>/core/vm.cpp:33:
/<<PKGBUILDDIR>>/core/string_utils.h:22:11: warning: nested namespace definitions only available with ‘-std=c++17’ or ‘-std=gnu++17’ [-Wc++17-extensions]
   22 | namespace jsonnet::internal {
      |           ^~~~~~~
/<<PKGBUILDDIR>>/core/vm.cpp:36:11: warning: nested namespace definitions only available with ‘-std=c++17’ or ‘-std=gnu++17’ [-Wc++17-extensions]
   36 | namespace jsonnet::internal {
      |           ^~~~~~~
/<<PKGBUILDDIR>>/core/vm.cpp: In member function ‘void jsonnet::internal::{anonymous}::Interpreter::otherJsonToHeap(const jsonnet::internal::json&, bool&, jsonnet::internal::{anonymous}::Value&)’:
/<<PKGBUILDDIR>>/core/vm.cpp:1667:16: warning: enumeration value ‘binary’ not handled in switch [-Wswitch]
 1667 |         switch (v.type()) {
      |                ^
/<<PKGBUILDDIR>>/core/vm.cpp: In member function ‘void jsonnet::internal::{anonymous}::Interpreter::otherJsonToHeap(const jsonnet::internal::json&, bool&, jsonnet::internal::{anonymous}::Value&)’:
/<<PKGBUILDDIR>>/core/vm.cpp:1667:16: warning: enumeration value ‘binary’ not handled in switch [-Wswitch]
 1667 |         switch (v.type()) {
      |                ^
[ 48%] Linking CXX shared library ../libjsonnet.so
cd /<<PKGBUILDDIR>>/obj-x86_64-linux-gnu/core && /usr/bin/cmake -E cmake_link_script CMakeFiles/libjsonnet.dir/link.txt --verbose=1
[ 51%] Linking CXX static library ../libjsonnet.a
cd /<<PKGBUILDDIR>>/obj-x86_64-linux-gnu/core && /usr/bin/cmake -P CMakeFiles/libjsonnet_static.dir/cmake_clean_target.cmake
cd /<<PKGBUILDDIR>>/obj-x86_64-linux-gnu/core && /usr/bin/cmake -E cmake_link_script CMakeFiles/libjsonnet_static.dir/link.txt --verbose=1
/usr/bin/c++ -fPIC -g -O2 -ffile-prefix-map=/<<PKGBUILDDIR>> [too-long-redacted] nu: ../libmd5.a -lryml -lc4core
cd /<<PKGBUILDDIR>>/obj-x86_64-linux-gnu/core && /usr/bin/cmake -E cmake_symlink_library ../libjsonnet.so.0.20.0 ../libjsonnet.so.0 ../libjsonnet.so
make[4]: Leaving directory '/<<PKGBUILDDIR>>/obj-x86_64-linux-gnu'
[ 51%] Built target libjsonnet
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/usr/bin/x86_64-linux-gnu-ld.bfd: /usr/lib/gcc/x86_64-linux-gnu/15/../../../x86_64-linux-gnu/libryml.so: undefined reference to `c4::is_debugger_attached()'
/usr/bin/x86_64-linux-gnu-ld.bfd: /usr/lib/gcc/x86_64-linux-gnu/15/../../../x86_64-linux-gnu/libryml.so: undefined reference to `c4::handle_error(c4::srcloc, char const*, ...)'
/usr/bin/x86_64-linux-gnu-ld.bfd: /usr/lib/gcc/x86_64-linux-gnu/15/../../../x86_64-linux-gnu/libryml.so: undefined reference to `c4::get_error_flags()'
/usr/bin/x86_64-linux-gnu-ld.bfd: /usr/lib/gcc/x86_64-linux-gnu/15/../../../x86_64-linux-gnu/libryml.so: undefined reference to `c4::base64_encode(c4::basic_substring<char>, c4::blob_<char const>)'
/usr/bin/x86_64-linux-gnu-ld.bfd: /usr/lib/gcc/x86_64-linux-gnu/15/../../../x86_64-linux-gnu/libryml.so: undefined reference to `c4::decode_code_point(unsigned char*, unsigned long, unsigned int)'
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/usr/bin/c++ -g -O2 -ffile-prefix-map=/<<PKGBUILDDIR>>=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -Ithird_party/md5 -I/usr/include/nlohmann -Iinclude -fPIC -DC4CORE_NO_FAST_FLOAT -DNDEBUG -Wdate-time -D_FORTIFY_SOURCE=2 -Wdate-time -D_FORTIFY_SOURCE=2 -g -Wall -Wextra -Woverloaded-virtual -pedantic -std=c++11 -fPIC -O3 -Wl,-z,relro -Wl,-z,now -Wl,--dependency-file=CMakeFiles/jsonnetfmt.dir/link.d CMakeFiles/jsonnetfmt.dir/jsonnetfmt.cpp.o CMakeFiles/jsonnetfmt.dir/utils.cpp.o -o ../jsonnetfmt   -L/<<PKGBUILDDIR>>/obj-x86_64-linux-gnu  -Wl,-rpath,/<<PKGBUILDDIR>>/obj-x86_64-linux-gnu: ../libjsonnet.a ../libmd5.a -lryml
make[4]: *** [cmd/CMakeFiles/jsonnetfmt.dir/build.make:122: jsonnetfmt] Error 1
make[4]: Leaving directory '/<<PKGBUILDDIR>>/obj-x86_64-linux-gnu'
make[3]: *** [CMakeFiles/Makefile2:855: cmd/CMakeFiles/jsonnetfmt.dir/all] Error 2
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/usr/bin/x86_64-linux-gnu-ld.bfd: warning: libc4core.so.0.2.7, needed by /usr/lib/gcc/x86_64-linux-gnu/15/../../../x86_64-linux-gnu/libryml.so, not found (try using -rpath or -rpath-link)
/usr/bin/x86_64-linux-gnu-ld.bfd: /usr/lib/gcc/x86_64-linux-gnu/15/../../../x86_64-linux-gnu/libryml.so: undefined reference to `c4::is_debugger_attached()'
/usr/bin/x86_64-linux-gnu-ld.bfd: /usr/lib/gcc/x86_64-linux-gnu/15/../../../x86_64-linux-gnu/libryml.so: undefined reference to `c4::handle_error(c4::srcloc, char const*, ...)'
/usr/bin/x86_64-linux-gnu-ld.bfd: /usr/lib/gcc/x86_64-linux-gnu/15/../../../x86_64-linux-gnu/libryml.so: undefined reference to `c4::get_error_flags()'
/usr/bin/x86_64-linux-gnu-ld.bfd: /usr/lib/gcc/x86_64-linux-gnu/15/../../../x86_64-linux-gnu/libryml.so: undefined reference to `c4::base64_encode(c4::basic_substring<char>, c4::blob_<char const>)'
/usr/bin/x86_64-linux-gnu-ld.bfd: /usr/lib/gcc/x86_64-linux-gnu/15/../../../x86_64-linux-gnu/libryml.so: undefined reference to `c4::decode_code_point(unsigned char*, unsigned long, unsigned int)'
collect2: error: ld returned 1 exit status
/usr/bin/c++ -g -O2 -ffile-prefix-map=/<<PKGBUILDDIR>>=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -Ithird_party/md5 -I/usr/include/nlohmann -Iinclude -fPIC -DC4CORE_NO_FAST_FLOAT -DNDEBUG -Wdate-time -D_FORTIFY_SOURCE=2 -Wdate-time -D_FORTIFY_SOURCE=2 -g -Wall -Wextra -Woverloaded-virtual -pedantic -std=c++11 -fPIC -O3 -Wl,-z,relro -Wl,-z,now -Wl,--dependency-file=CMakeFiles/jsonnet.dir/link.d CMakeFiles/jsonnet.dir/jsonnet.cpp.o CMakeFiles/jsonnet.dir/utils.cpp.o -o ../jsonnet   -L/<<PKGBUILDDIR>>/obj-x86_64-linux-gnu  -Wl,-rpath,/<<PKGBUILDDIR>>/obj-x86_64-linux-gnu: ../libjsonnet.a ../libmd5.a -lryml
make[4]: *** [cmd/CMakeFiles/jsonnet.dir/build.make:122: jsonnet] Error 1
make[4]: Leaving directory '/<<PKGBUILDDIR>>/obj-x86_64-linux-gnu'
make[3]: *** [CMakeFiles/Makefile2:822: cmd/CMakeFiles/jsonnet.dir/all] Error 2
make[3]: Leaving directory '/<<PKGBUILDDIR>>/obj-x86_64-linux-gnu'
make[2]: *** [Makefile:149: all] Error 2
make[2]: Leaving directory '/<<PKGBUILDDIR>>/obj-x86_64-linux-gnu'
dh_auto_build: error: cd obj-x86_64-linux-gnu && make -j2 INSTALL="install --strip-program=true" VERBOSE=1 returned exit code 2
make[1]: *** [debian/rules:20: override_dh_auto_build] Error 25
make[1]: Leaving directory '/<<PKGBUILDDIR>>'
make: *** [debian/rules:9: binary] Error 2
dpkg-buildpackage: error: debian/rules binary subprocess failed with exit status 2
--------------------------------------------------------------------------------

#1134287#10
Date:
2026-04-29 09:52:53 UTC
From:
To:
I believe this FTBFS is caused by  the missed transitions in c4core
[1] and rapidyaml [2].


[1] https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1134117
[2] https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1134119

#1134287#21
Date:
2026-08-25 08:10:19 UTC
From:
To:
We believe that the bug you reported is fixed in the latest version of
c4core, which is due to be installed in the Debian FTP archive.

A summary of the changes between this version and the previous one is
attached.

Thank you for reporting the bug, which will now be closed.  If you
have further comments please address them to 1134117@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
Fukui Daichi <a.dog.will.talk@akane.waseda.jp> (supplier of updated c4core package)

(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing ftpmaster@ftp-master.debian.org)
Format: 1.8
Date: Fri, 10 Jul 2026 10:45:22 +0900
Source: c4core
Binary: libc4core-dev libc4core0 libc4core0.6 libc4core0.6-dbgsym
Architecture: source amd64
Version: 0.6.0-1
Distribution: unstable
Urgency: medium
Maintainer: Gabriel Barrantes <gabriel.barrantes.dev@outlook.com>
Changed-By: Fukui Daichi <a.dog.will.talk@akane.waseda.jp>
Description:
 libc4core-dev - low-latency, low-level C++ library (development files)
 libc4core0 - transitional dummy package for libc4core
 libc4core0.6 - low-latency, low-level C++ library
Closes: 1134117
Changes:
 c4core (0.6.0-1) unstable; urgency=medium
 .
   * New upstream release (Closes: #1134117).
   * d/patches:
     - Drop 0006-Soversion.patch to restore upstream SONAME versioning.
     - Drop multiarch install-dir patches as they are applied upstream.
   * d/control:
     - Rename runtime package to libc4core0.6 to match upstream SONAME.
     - Add transitional libc4core0 package.
     - Update libc4core-dev dependency.
   * Rename libc4core0.install to libc4core0.6.install.
   * Rename and update symbols file for libc4core0.6.
   * Remove obsolete lintian override for SONAME mismatch.
     All changes above are to restore upstream SONAME versioning.
   * d/control:
     - Bump Standards-Version to 4.7.4.
     - Drop redundant Priority and Rules-Requires-Root fields.
   * d/rules: Remove trailing whitespace.
   * d/patches: Add headers or update headers to comply with DEP-3
   * d/copyright: Refresh d/copyright for the 0.6.0 source tree.
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