chrono.h:1112:38: error: call to consteval function 'fmt::basic_format_string::basic_format_string' is not a constant expression)

Debian Bug Tracking System Tue, 27 Jan 2026 06:12:25 -0800

Your message dated Tue, 27 Jan 2026 12:40:05 +0000
with message-id <[email protected]>
and subject line Bug#1124167: fixed in justbuild 1.6.3-2
has caused the Debian Bug report #1124167,
regarding justbuild: FTBFS: /usr/include/fmt/chrono.h:1112:38: error: call to 
consteval function 'fmt::basic_format_string<char, double, int 
&>::basic_format_string<FMT_COMPILE_STRING, 0>' is not a constant expression
to be marked as done.


This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact [email protected]
immediately.)


-- 
1124167: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1124167
Debian Bug Tracking System
Contact [email protected] with problems

--- Begin Message ---

Package: src:justbuild
Version: 1.6.3-1
Severity: serious
Tags: ftbfs forky sid

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/202512/

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:justbuild, so that this is still
visible in the BTS web page for this package.

Thanks.

--------------------------------------------------------------------------------
[...]
 debian/rules clean
dh clean
   debian/rules override_dh_clean
make[1]: Entering directory '/<<PKGBUILDDIR>>'
make -f debian/justbuild.makefile clean
make[2]: Entering directory '/<<PKGBUILDDIR>>'
rm -rf /<<PKGBUILDDIR>>/debian/build
make[2]: Leaving directory '/<<PKGBUILDDIR>>'
dh_clean
make[1]: Leaving directory '/<<PKGBUILDDIR>>'
 debian/rules binary
dh binary
   dh_update_autotools_config
   dh_autoreconf
   debian/rules override_dh_auto_build

[... snipped ...]

In file included from 
/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/build_engine/expression/expression.cpp:15:
In file included from 
/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/build_engine/expression/expression.hpp:33:
In file included from 
/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/build_engine/base_maps/entity_name_data.hpp:30:
In file included from 
/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/build_engine/expression/expression_ptr.hpp:26:
In file included from 
/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/build_engine/expression/function_map.hpp:21:
In file included from 
/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/build_engine/expression/linked_map.hpp:30:
In file included from 
/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/multithreading/atomic_value.hpp:22:
/<<PKGBUILDDIR>>/debian/build/src/src/utils/cpp/atomic.hpp:127:21: warning: 
'atomic_load<bool>' is deprecated: use 'std::atomic<std::shared_ptr<T>>' 
instead [-Wdeprecated-declarations]
  127 |         return std::atomic_load(&value_);
      |                     ^
/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/multithreading/atomic_value.hpp:41:19:
 note: in instantiation of member function 'atomic_shared_ptr<bool>::load' 
requested here
   41 |         if (data_.load() == nullptr) {
      |                   ^
/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/build_engine/expression/expression.cpp:168:25:
 note: in instantiation of member function 'AtomicValue<bool>::SetOnceAndGet' 
requested here
  168 |     return is_cachable_.SetOnceAndGet([this] { return 
ComputeIsCacheable(); });
      |                         ^
/usr/lib/gcc/x86_64-linux-gnu/15/../../../../include/c++/15/bits/shared_ptr_atomic.h:140:5:
 note: 'atomic_load<bool>' has been explicitly marked deprecated here
  140 |     _GLIBCXX20_DEPRECATED_SUGGEST("std::atomic<std::shared_ptr<T>>")
      |     ^
/usr/lib/gcc/x86_64-linux-gnu/15/../../../../include/x86_64-linux-gnu/c++/15/bits/c++config.h:144:45:
 note: expanded from macro '_GLIBCXX20_DEPRECATED_SUGGEST'
  144 | # define _GLIBCXX20_DEPRECATED_SUGGEST(ALT) 
_GLIBCXX_DEPRECATED_SUGGEST(ALT)
      |                                             ^
/usr/lib/gcc/x86_64-linux-gnu/15/../../../../include/x86_64-linux-gnu/c++/15/bits/c++config.h:112:19:
 note: expanded from macro '_GLIBCXX_DEPRECATED_SUGGEST'
  112 |   __attribute__ ((__deprecated__ ("use '" ALT "' instead")))
      |                   ^
In file included from 
/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/build_engine/expression/expression.cpp:15:
In file included from 
/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/build_engine/expression/expression.hpp:33:
In file included from 
/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/build_engine/base_maps/entity_name_data.hpp:30:
In file included from 
/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/build_engine/expression/expression_ptr.hpp:26:
In file included from 
/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/build_engine/expression/function_map.hpp:21:
In file included from 
/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/build_engine/expression/linked_map.hpp:30:
In file included from 
/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/multithreading/atomic_value.hpp:22:
/<<PKGBUILDDIR>>/debian/build/src/src/utils/cpp/atomic.hpp:124:14: warning: 
'atomic_store<bool>' is deprecated: use 'std::atomic<std::shared_ptr<T>>' 
instead [-Wdeprecated-declarations]
  124 |         std::atomic_store(&value_, std::move(desired));
      |              ^
/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/multithreading/atomic_value.hpp:43:23:
 note: in instantiation of member function 'atomic_shared_ptr<bool>::store' 
requested here
   43 |                 data_.store(std::make_shared<T>(setter()));
      |                       ^
/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/build_engine/expression/expression.cpp:168:25:
 note: in instantiation of member function 'AtomicValue<bool>::SetOnceAndGet' 
requested here
  168 |     return is_cachable_.SetOnceAndGet([this] { return 
ComputeIsCacheable(); });
      |                         ^
/usr/lib/gcc/x86_64-linux-gnu/15/../../../../include/c++/15/bits/shared_ptr_atomic.h:181:5:
 note: 'atomic_store<bool>' has been explicitly marked deprecated here
  181 |     _GLIBCXX20_DEPRECATED_SUGGEST("std::atomic<std::shared_ptr<T>>")
      |     ^
/usr/lib/gcc/x86_64-linux-gnu/15/../../../../include/x86_64-linux-gnu/c++/15/bits/c++config.h:144:45:
 note: expanded from macro '_GLIBCXX20_DEPRECATED_SUGGEST'
  144 | # define _GLIBCXX20_DEPRECATED_SUGGEST(ALT) 
_GLIBCXX_DEPRECATED_SUGGEST(ALT)
      |                                             ^
/usr/lib/gcc/x86_64-linux-gnu/15/../../../../include/x86_64-linux-gnu/c++/15/bits/c++config.h:112:19:
 note: expanded from macro '_GLIBCXX_DEPRECATED_SUGGEST'
  112 |   __attribute__ ((__deprecated__ ("use '" ALT "' instead")))
      |                   ^
1 warning generated.
Running ['clang++', '-Wno-error', '-Wno-pedantic', '-g', '-O2', 
'-ffile-prefix-map=/<<PKGBUILDDIR>>=.', '-fstack-protector-strong', 
'-fstack-clash-protection', '-Wformat', '-Werror=format-security', 
'-fcf-protection', '-fdebug-compilation-dir=.', '-gdwarf-4', 
'-I/<<PKGBUILDDIR>>/debian/build/include', '-std=c++20', 
'-DBOOTSTRAP_BUILD_TOOL', '-I', '/<<PKGBUILDDIR>>/debian/build/src', '-I', 
'/<<PKGBUILDDIR>>/debian/build/dep_includes', '-I', '/usr/include', '-c', 
'/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/common/location.cpp', '-o', 
'/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/common/location.o'] in 
'/<<PKGBUILDDIR>>/debian/build/src'
Running ['clang++', '-Wno-error', '-Wno-pedantic', '-g', '-O2', 
'-ffile-prefix-map=/<<PKGBUILDDIR>>=.', '-fstack-protector-strong', 
'-fstack-clash-protection', '-Wformat', '-Werror=format-security', 
'-fcf-protection', '-fdebug-compilation-dir=.', '-gdwarf-4', 
'-I/<<PKGBUILDDIR>>/debian/build/include', '-std=c++20', 
'-DBOOTSTRAP_BUILD_TOOL', '-I', '/<<PKGBUILDDIR>>/debian/build/src', '-I', 
'/<<PKGBUILDDIR>>/debian/build/dep_includes', '-I', '/usr/include', '-c', 
'/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/common/repository_config.cpp', 
'-o', 
'/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/common/repository_config.o'] 
in '/<<PKGBUILDDIR>>/debian/build/src'
Running ['clang++', '-Wno-error', '-Wno-pedantic', '-g', '-O2', 
'-ffile-prefix-map=/<<PKGBUILDDIR>>=.', '-fstack-protector-strong', 
'-fstack-clash-protection', '-Wformat', '-Werror=format-security', 
'-fcf-protection', '-fdebug-compilation-dir=.', '-gdwarf-4', 
'-I/<<PKGBUILDDIR>>/debian/build/include', '-std=c++20', 
'-DBOOTSTRAP_BUILD_TOOL', '-I', '/<<PKGBUILDDIR>>/debian/build/src', '-I', 
'/<<PKGBUILDDIR>>/debian/build/dep_includes', '-I', '/usr/include', '-c', 
'/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/common/remote/retry.cpp', 
'-o', '/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/common/remote/retry.o'] 
in '/<<PKGBUILDDIR>>/debian/build/src'
Running ['clang++', '-Wno-error', '-Wno-pedantic', '-g', '-O2', 
'-ffile-prefix-map=/<<PKGBUILDDIR>>=.', '-fstack-protector-strong', 
'-fstack-clash-protection', '-Wformat', '-Werror=format-security', 
'-fcf-protection', '-fdebug-compilation-dir=.', '-gdwarf-4', 
'-I/<<PKGBUILDDIR>>/debian/build/include', '-std=c++20', 
'-DBOOTSTRAP_BUILD_TOOL', '-I', '/<<PKGBUILDDIR>>/debian/build/src', '-I', 
'/<<PKGBUILDDIR>>/debian/build/dep_includes', '-I', '/usr/include', '-c', 
'/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/graph_traverser/graph_traverser.cpp',
 '-o', 
'/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/graph_traverser/graph_traverser.o']
 in '/<<PKGBUILDDIR>>/debian/build/src'
6 warnings generated.
3 warnings generated.
In file included from 
/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/common/repository_config.cpp:15:
In file included from 
/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/common/repository_config.hpp:31:
In file included from 
/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/file_system/file_root.hpp:42:
In file included from 
/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/file_system/git_tree.hpp:32:
In file included from 
/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/multithreading/atomic_value.hpp:22:
/<<PKGBUILDDIR>>/debian/build/src/src/utils/cpp/atomic.hpp:127:21: warning: 
'atomic_load<std::vector<std::pair<std::basic_string<char>, ExpressionPtr>>>' 
is deprecated: use 'std::atomic<std::shared_ptr<T>>' instead 
[-Wdeprecated-declarations]
  127 |         return std::atomic_load(&value_);
      |                     ^
/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/multithreading/atomic_value.hpp:30:67:
 note: in instantiation of member function 
'atomic_shared_ptr<std::vector<std::pair<std::basic_string<char>, 
ExpressionPtr>>>::load' requested here
   30 |     AtomicValue(AtomicValue&& other) noexcept : 
data_{other.data_.load()} {}
      |                                                                   ^
/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/build_engine/expression/linked_map.hpp:131:5:
 note: in instantiation of member function 
'AtomicValue<std::vector<std::pair<std::basic_string<char>, 
ExpressionPtr>>>::AtomicValue' requested here
  131 |     LinkedMap(LinkedMap&& other) noexcept = default;
      |     ^
/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/build_engine/expression/expression.hpp:141:33:
 note: in instantiation of function template specialization 
'Expression::Cast<LinkedMap<std::basic_string<char>, ExpressionPtr, 
ExpressionPtr>>' requested here
  141 |         return std::move(*this).Cast<map_t>();
      |                                 ^
/usr/lib/gcc/x86_64-linux-gnu/15/../../../../include/c++/15/bits/shared_ptr_atomic.h:140:5:
 note: 'atomic_load<std::vector<std::pair<std::basic_string<char>, 
ExpressionPtr>>>' has been explicitly marked deprecated here
  140 |     _GLIBCXX20_DEPRECATED_SUGGEST("std::atomic<std::shared_ptr<T>>")
      |     ^
/usr/lib/gcc/x86_64-linux-gnu/15/../../../../include/x86_64-linux-gnu/c++/15/bits/c++config.h:144:45:
 note: expanded from macro '_GLIBCXX20_DEPRECATED_SUGGEST'
  144 | # define _GLIBCXX20_DEPRECATED_SUGGEST(ALT) 
_GLIBCXX_DEPRECATED_SUGGEST(ALT)
      |                                             ^
/usr/lib/gcc/x86_64-linux-gnu/15/../../../../include/x86_64-linux-gnu/c++/15/bits/c++config.h:112:19:
 note: expanded from macro '_GLIBCXX_DEPRECATED_SUGGEST'
  112 |   __attribute__ ((__deprecated__ ("use '" ALT "' instead")))
      |                   ^
In file included from 
/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/common/repository_config.cpp:15:
In file included from 
/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/common/repository_config.hpp:31:
In file included from 
/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/file_system/file_root.hpp:42:
In file included from 
/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/file_system/git_tree.hpp:32:
In file included from 
/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/multithreading/atomic_value.hpp:22:
/<<PKGBUILDDIR>>/debian/build/src/src/utils/cpp/atomic.hpp:124:14: warning: 
'atomic_store<std::vector<std::pair<std::basic_string<char>, ExpressionPtr>>>' 
is deprecated: use 'std::atomic<std::shared_ptr<T>>' instead 
[-Wdeprecated-declarations]
  124 |         std::atomic_store(&value_, std::move(desired));
      |              ^
/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/multithreading/atomic_value.hpp:43:23:
 note: in instantiation of member function 
'atomic_shared_ptr<std::vector<std::pair<std::basic_string<char>, 
ExpressionPtr>>>::store' requested here
   43 |                 data_.store(std::make_shared<T>(setter()));
      |                       ^
/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/build_engine/expression/linked_map.hpp:276:23:
 note: in instantiation of member function 
'AtomicValue<std::vector<std::pair<std::basic_string<char>, 
ExpressionPtr>>>::SetOnceAndGet' requested here
  276 |         return items_.SetOnceAndGet([this] { return 
ComputeSortedItems(); });
      |                       ^
/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/build_engine/expression/linked_map.hpp:247:16:
 note: in instantiation of member function 'LinkedMap<std::basic_string<char>, 
ExpressionPtr, ExpressionPtr>::Items' requested here
  247 |         return Items().cbegin();
      |                ^
/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/build_engine/expression/configuration.hpp:70:43:
 note: in instantiation of member function 'LinkedMap<std::basic_string<char>, 
ExpressionPtr, ExpressionPtr>::begin' requested here
   70 |             for (auto const& [key, value] : expr_->Map()) {
      |                                           ^
/usr/lib/gcc/x86_64-linux-gnu/15/../../../../include/c++/15/bits/shared_ptr_atomic.h:181:5:
 note: 'atomic_store<std::vector<std::pair<std::basic_string<char>, 
ExpressionPtr>>>' has been explicitly marked deprecated here
  181 |     _GLIBCXX20_DEPRECATED_SUGGEST("std::atomic<std::shared_ptr<T>>")
      |     ^
/usr/lib/gcc/x86_64-linux-gnu/15/../../../../include/x86_64-linux-gnu/c++/15/bits/c++config.h:144:45:
 note: expanded from macro '_GLIBCXX20_DEPRECATED_SUGGEST'
  144 | # define _GLIBCXX20_DEPRECATED_SUGGEST(ALT) 
_GLIBCXX_DEPRECATED_SUGGEST(ALT)
      |                                             ^
/usr/lib/gcc/x86_64-linux-gnu/15/../../../../include/x86_64-linux-gnu/c++/15/bits/c++config.h:112:19:
 note: expanded from macro '_GLIBCXX_DEPRECATED_SUGGEST'
  112 |   __attribute__ ((__deprecated__ ("use '" ALT "' instead")))
      |                   ^
In file included from 
/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/common/repository_config.cpp:15:
In file included from 
/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/common/repository_config.hpp:31:
In file included from 
/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/file_system/file_root.hpp:42:
In file included from 
/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/file_system/git_tree.hpp:32:
In file included from 
/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/multithreading/atomic_value.hpp:22:
/<<PKGBUILDDIR>>/debian/build/src/src/utils/cpp/atomic.hpp:117:14: warning: 
'atomic_store<std::optional<ArtifactDigest>>' is deprecated: use 
'std::atomic<std::shared_ptr<T>>' instead [-Wdeprecated-declarations]
  117 |         std::atomic_store(&value_, desired);
      |              ^
/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/multithreading/atomic_value.hpp:59:15:
 note: in instantiation of member function 
'atomic_shared_ptr<std::optional<ArtifactDigest>>::operator=' requested here
   59 |         data_ = nullptr;
      |               ^
/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/common/repository_config.hpp:62:26:
 note: in instantiation of member function 
'AtomicValue<std::optional<ArtifactDigest>>::Reset' requested here
   62 |         repos_[repo].key.Reset();
      |                          ^
/usr/lib/gcc/x86_64-linux-gnu/15/../../../../include/c++/15/bits/shared_ptr_atomic.h:181:5:
 note: 'atomic_store<std::optional<ArtifactDigest>>' has been explicitly marked 
deprecated here
  181 |     _GLIBCXX20_DEPRECATED_SUGGEST("std::atomic<std::shared_ptr<T>>")
      |     ^
/usr/lib/gcc/x86_64-linux-gnu/15/../../../../include/x86_64-linux-gnu/c++/15/bits/c++config.h:144:45:
 note: expanded from macro '_GLIBCXX20_DEPRECATED_SUGGEST'
  144 | # define _GLIBCXX20_DEPRECATED_SUGGEST(ALT) 
_GLIBCXX_DEPRECATED_SUGGEST(ALT)
      |                                             ^
/usr/lib/gcc/x86_64-linux-gnu/15/../../../../include/x86_64-linux-gnu/c++/15/bits/c++config.h:112:19:
 note: expanded from macro '_GLIBCXX_DEPRECATED_SUGGEST'
  112 |   __attribute__ ((__deprecated__ ("use '" ALT "' instead")))
      |                   ^
In file included from 
/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/common/repository_config.cpp:15:
In file included from 
/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/common/repository_config.hpp:31:
In file included from 
/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/file_system/file_root.hpp:42:
In file included from 
/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/file_system/git_tree.hpp:32:
In file included from 
/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/multithreading/atomic_value.hpp:22:
/<<PKGBUILDDIR>>/debian/build/src/src/utils/cpp/atomic.hpp:117:14: warning: 
'atomic_store<std::unordered_map<std::basic_string<char>, 
std::basic_string<char>>>' is deprecated: use 'std::atomic<std::shared_ptr<T>>' 
instead [-Wdeprecated-declarations]
  117 |         std::atomic_store(&value_, desired);
      |              ^
/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/multithreading/atomic_value.hpp:59:15:
 note: in instantiation of member function 
'atomic_shared_ptr<std::unordered_map<std::basic_string<char>, 
std::basic_string<char>>>::operator=' requested here
   59 |         data_ = nullptr;
      |               ^
/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/common/repository_config.hpp:63:21:
 note: in instantiation of member function 
'AtomicValue<std::unordered_map<std::basic_string<char>, 
std::basic_string<char>>>::Reset' requested here
   63 |         duplicates_.Reset();
      |                     ^
/usr/lib/gcc/x86_64-linux-gnu/15/../../../../include/c++/15/bits/shared_ptr_atomic.h:181:5:
 note: 'atomic_store<std::unordered_map<std::basic_string<char>, 
std::basic_string<char>>>' has been explicitly marked deprecated here
  181 |     _GLIBCXX20_DEPRECATED_SUGGEST("std::atomic<std::shared_ptr<T>>")
      |     ^
/usr/lib/gcc/x86_64-linux-gnu/15/../../../../include/x86_64-linux-gnu/c++/15/bits/c++config.h:144:45:
 note: expanded from macro '_GLIBCXX20_DEPRECATED_SUGGEST'
  144 | # define _GLIBCXX20_DEPRECATED_SUGGEST(ALT) 
_GLIBCXX_DEPRECATED_SUGGEST(ALT)
      |                                             ^
/usr/lib/gcc/x86_64-linux-gnu/15/../../../../include/x86_64-linux-gnu/c++/15/bits/c++config.h:112:19:
 note: expanded from macro '_GLIBCXX_DEPRECATED_SUGGEST'
  112 |   __attribute__ ((__deprecated__ ("use '" ALT "' instead")))
      |                   ^
In file included from 
/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/common/repository_config.cpp:15:
In file included from 
/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/common/repository_config.hpp:31:
In file included from 
/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/file_system/file_root.hpp:42:
In file included from 
/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/file_system/git_tree.hpp:32:
In file included from 
/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/multithreading/atomic_value.hpp:22:
/<<PKGBUILDDIR>>/debian/build/src/src/utils/cpp/atomic.hpp:127:21: warning: 
'atomic_load<std::optional<ArtifactDigest>>' is deprecated: use 
'std::atomic<std::shared_ptr<T>>' instead [-Wdeprecated-declarations]
  127 |         return std::atomic_load(&value_);
      |                     ^
/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/multithreading/atomic_value.hpp:41:19:
 note: in instantiation of member function 
'atomic_shared_ptr<std::optional<ArtifactDigest>>::load' requested here
   41 |         if (data_.load() == nullptr) {
      |                   ^
/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/common/repository_config.cpp:46:26:
 note: in instantiation of member function 
'AtomicValue<std::optional<ArtifactDigest>>::SetOnceAndGet' requested here
   46 |         return data->key.SetOnceAndGet(
      |                          ^
/usr/lib/gcc/x86_64-linux-gnu/15/../../../../include/c++/15/bits/shared_ptr_atomic.h:140:5:
 note: 'atomic_load<std::optional<ArtifactDigest>>' has been explicitly marked 
deprecated here
  140 |     _GLIBCXX20_DEPRECATED_SUGGEST("std::atomic<std::shared_ptr<T>>")
      |     ^
/usr/lib/gcc/x86_64-linux-gnu/15/../../../../include/x86_64-linux-gnu/c++/15/bits/c++config.h:144:45:
 note: expanded from macro '_GLIBCXX20_DEPRECATED_SUGGEST'
  144 | # define _GLIBCXX20_DEPRECATED_SUGGEST(ALT) 
_GLIBCXX_DEPRECATED_SUGGEST(ALT)
      |                                             ^
/usr/lib/gcc/x86_64-linux-gnu/15/../../../../include/x86_64-linux-gnu/c++/15/bits/c++config.h:112:19:
 note: expanded from macro '_GLIBCXX_DEPRECATED_SUGGEST'
  112 |   __attribute__ ((__deprecated__ ("use '" ALT "' instead")))
      |                   ^
In file included from 
/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/common/repository_config.cpp:15:
In file included from 
/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/common/repository_config.hpp:31:
In file included from 
/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/file_system/file_root.hpp:42:
In file included from 
/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/file_system/git_tree.hpp:32:
In file included from 
/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/multithreading/atomic_value.hpp:22:
/<<PKGBUILDDIR>>/debian/build/src/src/utils/cpp/atomic.hpp:124:14: warning: 
'atomic_store<std::optional<ArtifactDigest>>' is deprecated: use 
'std::atomic<std::shared_ptr<T>>' instead [-Wdeprecated-declarations]
  124 |         std::atomic_store(&value_, std::move(desired));
      |              ^
/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/multithreading/atomic_value.hpp:43:23:
 note: in instantiation of member function 
'atomic_shared_ptr<std::optional<ArtifactDigest>>::store' requested here
   43 |                 data_.store(std::make_shared<T>(setter()));
      |                       ^
/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/common/repository_config.cpp:46:26:
 note: in instantiation of member function 
'AtomicValue<std::optional<ArtifactDigest>>::SetOnceAndGet' requested here
   46 |         return data->key.SetOnceAndGet(
      |                          ^
/usr/lib/gcc/x86_64-linux-gnu/15/../../../../include/c++/15/bits/shared_ptr_atomic.h:181:5:
 note: 'atomic_store<std::optional<ArtifactDigest>>' has been explicitly marked 
deprecated here
  181 |     _GLIBCXX20_DEPRECATED_SUGGEST("std::atomic<std::shared_ptr<T>>")
      |     ^
/usr/lib/gcc/x86_64-linux-gnu/15/../../../../include/x86_64-linux-gnu/c++/15/bits/c++config.h:144:45:
 note: expanded from macro '_GLIBCXX20_DEPRECATED_SUGGEST'
  144 | # define _GLIBCXX20_DEPRECATED_SUGGEST(ALT) 
_GLIBCXX_DEPRECATED_SUGGEST(ALT)
      |                                             ^
/usr/lib/gcc/x86_64-linux-gnu/15/../../../../include/x86_64-linux-gnu/c++/15/bits/c++config.h:112:19:
 note: expanded from macro '_GLIBCXX_DEPRECATED_SUGGEST'
  112 |   __attribute__ ((__deprecated__ ("use '" ALT "' instead")))
      |                   ^
In file included from 
/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/common/repository_config.cpp:15:
In file included from 
/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/common/repository_config.hpp:31:
In file included from 
/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/file_system/file_root.hpp:42:
In file included from 
/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/file_system/git_tree.hpp:32:
In file included from 
/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/multithreading/atomic_value.hpp:22:
/<<PKGBUILDDIR>>/debian/build/src/src/utils/cpp/atomic.hpp:127:21: warning: 
'atomic_load<std::unordered_map<std::basic_string<char>, 
std::basic_string<char>>>' is deprecated: use 'std::atomic<std::shared_ptr<T>>' 
instead [-Wdeprecated-declarations]
  127 |         return std::atomic_load(&value_);
      |                     ^
/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/multithreading/atomic_value.hpp:41:19:
 note: in instantiation of member function 
'atomic_shared_ptr<std::unordered_map<std::basic_string<char>, 
std::basic_string<char>>>::load' requested here
   41 |         if (data_.load() == nullptr) {
      |                   ^
/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/common/repository_config.cpp:64:42:
 note: in instantiation of member function 
'AtomicValue<std::unordered_map<std::basic_string<char>, 
std::basic_string<char>>>::SetOnceAndGet' requested here
   64 |     auto const& duplicates = duplicates_.SetOnceAndGet([this, 
&hash_function] {
      |                                          ^
/usr/lib/gcc/x86_64-linux-gnu/15/../../../../include/c++/15/bits/shared_ptr_atomic.h:140:5:
 note: 'atomic_load<std::unordered_map<std::basic_string<char>, 
std::basic_string<char>>>' has been explicitly marked deprecated here
  140 |     _GLIBCXX20_DEPRECATED_SUGGEST("std::atomic<std::shared_ptr<T>>")
      |     ^
/usr/lib/gcc/x86_64-linux-gnu/15/../../../../include/x86_64-linux-gnu/c++/15/bits/c++config.h:144:45:
 note: expanded from macro '_GLIBCXX20_DEPRECATED_SUGGEST'
  144 | # define _GLIBCXX20_DEPRECATED_SUGGEST(ALT) 
_GLIBCXX_DEPRECATED_SUGGEST(ALT)
      |                                             ^
/usr/lib/gcc/x86_64-linux-gnu/15/../../../../include/x86_64-linux-gnu/c++/15/bits/c++config.h:112:19:
 note: expanded from macro '_GLIBCXX_DEPRECATED_SUGGEST'
  112 |   __attribute__ ((__deprecated__ ("use '" ALT "' instead")))
      |                   ^
In file included from 
/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/common/repository_config.cpp:15:
In file included from 
/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/common/repository_config.hpp:31:
In file included from 
/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/file_system/file_root.hpp:42:
In file included from 
/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/file_system/git_tree.hpp:32:
In file included from 
/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/multithreading/atomic_value.hpp:22:
/<<PKGBUILDDIR>>/debian/build/src/src/utils/cpp/atomic.hpp:124:14: warning: 
'atomic_store<std::unordered_map<std::basic_string<char>, 
std::basic_string<char>>>' is deprecated: use 'std::atomic<std::shared_ptr<T>>' 
instead [-Wdeprecated-declarations]
  124 |         std::atomic_store(&value_, std::move(desired));
      |              ^
/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/multithreading/atomic_value.hpp:43:23:
 note: in instantiation of member function 
'atomic_shared_ptr<std::unordered_map<std::basic_string<char>, 
std::basic_string<char>>>::store' requested here
   43 |                 data_.store(std::make_shared<T>(setter()));
      |                       ^
/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/common/repository_config.cpp:64:42:
 note: in instantiation of member function 
'AtomicValue<std::unordered_map<std::basic_string<char>, 
std::basic_string<char>>>::SetOnceAndGet' requested here
   64 |     auto const& duplicates = duplicates_.SetOnceAndGet([this, 
&hash_function] {
      |                                          ^
/usr/lib/gcc/x86_64-linux-gnu/15/../../../../include/c++/15/bits/shared_ptr_atomic.h:181:5:
 note: 'atomic_store<std::unordered_map<std::basic_string<char>, 
std::basic_string<char>>>' has been explicitly marked deprecated here
  181 |     _GLIBCXX20_DEPRECATED_SUGGEST("std::atomic<std::shared_ptr<T>>")
      |     ^
/usr/lib/gcc/x86_64-linux-gnu/15/../../../../include/x86_64-linux-gnu/c++/15/bits/c++config.h:144:45:
 note: expanded from macro '_GLIBCXX20_DEPRECATED_SUGGEST'
  144 | # define _GLIBCXX20_DEPRECATED_SUGGEST(ALT) 
_GLIBCXX_DEPRECATED_SUGGEST(ALT)
      |                                             ^
/usr/lib/gcc/x86_64-linux-gnu/15/../../../../include/x86_64-linux-gnu/c++/15/bits/c++config.h:112:19:
 note: expanded from macro '_GLIBCXX_DEPRECATED_SUGGEST'
  112 |   __attribute__ ((__deprecated__ ("use '" ALT "' instead")))
      |                   ^
8 warnings generated.
5 warnings generated.
Running ['clang++', '-Wno-error', '-Wno-pedantic', '-g', '-O 
[too-long-redacted] PKGBUILDDIR>>/debian/build/src'
clang++: error: no such file or directory: 
'/<<PKGBUILDDIR>>/debian/build/src/src/buildtool/main/main.o'
Traceback (most recent call last):
  File "/<<PKGBUILDDIR>>/./bin/bootstrap.py", line 509, in <module>
    main(sys.argv)
    ~~~~^^^^^^^^^^
  File "/<<PKGBUILDDIR>>/./bin/bootstrap.py", line 504, in main
    bootstrap()
    ~~~~~~~~~^^
  File "/<<PKGBUILDDIR>>/./bin/bootstrap.py", line 446, in bootstrap
    run(final_cmd, cwd=src_wrkdir)
    ~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/<<PKGBUILDDIR>>/./bin/bootstrap.py", line 172, in run
    subprocess.run(cmd, cwd=cwd, check=True, **kwargs)
    ~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.13/subprocess.py", line 577, in run
    raise CalledProcessError(retcode, process.args,
                             output=stdout, stderr=stderr)
subprocess.CalledProcessError: Command '['clang++', '-Wno-er 
[too-long-redacted] eturned non-zero exit status 1.
make[2]: *** [debian/justbuild.makefile:92: 
/<<PKGBUILDDIR>>/debian/build/out/bin/just] Error 1
make[2]: Leaving directory '/<<PKGBUILDDIR>>'
dh_auto_build: error: make -j2 INSTALL="install --strip-program=true" -f 
debian/justbuild.makefile returned exit code 2
make[1]: *** [debian/rules:12: override_dh_auto_build] Error 25
make[1]: Leaving directory '/<<PKGBUILDDIR>>'
make: *** [debian/rules:5: binary] Error 2
dpkg-buildpackage: error: debian/rules binary subprocess failed with exit 
status 2
--------------------------------------------------------------------------------

--- End Message ---

--- Begin Message ---

Source: justbuild
Source-Version: 1.6.3-2
Done: Oliver Reiche <[email protected]>

We believe that the bug you reported is fixed in the latest version of
justbuild, 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 [email protected],
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
Oliver Reiche <[email protected]> (supplier of updated justbuild 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 [email protected])


-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512

Format: 1.8
Date: Tue, 27 Jan 2026 11:14:15 +0100
Source: justbuild
Architecture: source
Version: 1.6.3-2
Distribution: unstable
Urgency: medium
Maintainer: Oliver Reiche <[email protected]>
Changed-By: Oliver Reiche <[email protected]>
Closes: 1124167
Changes:
 justbuild (1.6.3-2) unstable; urgency=medium
 .
   * Fix libfmt compile error (Closes: #1124167)
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justbuild_1.6.3-2.debian.tar.xz
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Files:
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 21147f962100e6fb88f83ee2aa49b754 9267292 devel optional 
justbuild_1.6.3-2.debian.tar.xz
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justbuild_1.6.3-2_source.buildinfo

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--- End Message ---

Bug#1124167: marked as done (justbuild: FTBFS: /usr/include/fmt/chrono.h:1112:38: error: call to consteval function 'fmt::basic_format_string::basic_format_string' is not a constant expression)

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