Public bug reported:
As seen in RVA23 test rebuild:
https://people.canonical.com/~ginggs/ftbfs-report/test-rebuild-20250731-questing-rva23-questing.html
In file included from /usr/include/Fcitx5/Config/fcitx-config/rawconfig.h:17,
from
/usr/include/Fcitx5/Config/fcitx-config/marshallfunction.h:14,
from /usr/include/Fcitx5/Config/fcitx-config/option.h:18,
from
/usr/include/Fcitx5/Config/fcitx-config/configuration.h:14,
from /<<PKGBUILDDIR>>/src/unix/fcitx5/mozc_engine.h:22,
from ../../unix/fcitx5/mozc_engine.cc:20:
/usr/include/Fcitx5/Utils/fcitx-utils/log.h:170:53: error: ‘span’ in namespace
‘std’ does not name a template type
170 | inline LogMessageBuilder &operator<<(const std::span<T> &vec) {
| ^~~~
/usr/include/Fcitx5/Utils/fcitx-utils/log.h:170:48: note: ‘std::span’ is only
available from C++20 onwards
170 | inline LogMessageBuilder &operator<<(const std::span<T> &vec) {
| ^~~
/usr/include/Fcitx5/Utils/fcitx-utils/log.h:170:57: error: expected ‘,’ or
‘...’ before ‘<’ token
170 | inline LogMessageBuilder &operator<<(const std::span<T> &vec) {
| ^
/usr/include/Fcitx5/Utils/fcitx-utils/log.h: In member function
‘fcitx::LogMessageBuilder& fcitx::LogMessageBuilder::operator<<(int)’:
/usr/include/Fcitx5/Utils/fcitx-utils/log.h:172:20: error: ‘vec’ was not
declared in this scope [-Wtemplate-body]
172 | printRange(vec.begin(), vec.end());
| ^~~
In file included from /usr/include/Fcitx5/Config/fcitx-config/iniparser.h:17,
from ../../unix/fcitx5/mozc_engine.cc:22:
/usr/include/Fcitx5/Utils/fcitx-utils/standardpaths.h: At global scope:
/usr/include/Fcitx5/Utils/fcitx-utils/standardpaths.h:131:10: error: ‘span’ in
namespace ‘std’ does not name a template type
131 | std::span<const std::filesystem::path>
| ^~~~
/usr/include/Fcitx5/Utils/fcitx-utils/standardpaths.h:131:5: note: ‘std::span’
is only available from C++20 onwards
131 | std::span<const std::filesystem::path>
| ^~~
cc1plus: note: unrecognized command-line option
‘-Wno-inconsistent-missing-override’ may have been intended to silence earlier
diagnostics
cc1plus: note: unrecognized command-line option ‘-Wno-unknown-warning-option’
may have been intended to silence earlier diagnostics
ninja: build stopped: subcommand failed.
Traceback (most recent call last):
File "/<<PKGBUILDDIR>>/src/build_mozc.py", line 991, in <module>
sys.exit(main())
~~~~^^
File "/<<PKGBUILDDIR>>/src/build_mozc.py", line 976, in main
BuildMain(cmd_opts, cmd_args)
~~~~~~~~~^^^^^^^^^^^^^^^^^^^^
File "/<<PKGBUILDDIR>>/src/build_mozc.py", line 714, in BuildMain
BuildWithNinja(options, targets)
~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^
File "/<<PKGBUILDDIR>>/src/build_mozc.py", line 685, in BuildWithNinja
RunOrDie([ninja, '-v', '-C', build_arg, target_name])
~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/<<PKGBUILDDIR>>/src/build_tools/util.py", line 140, in RunOrDie
raise RunOrDieError('\n'.join(['',
...<2 lines>...
'==========']))
build_tools.util.RunOrDieError:
==========
ERROR: ninja -v -C out_linux/Release fcitx5-mozc
==========
** Affects: mozc (Ubuntu)
Importance: Undecided
Status: New
** Tags: ftbfs rva23-ftbfs
** Tags added: ftbfs rva23-ftbfs
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https://bugs.launchpad.net/bugs/2121938
Title:
mozc: FTBFS with RVA23
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