Fails to build on ArchLinux with both GCC-14.1.1 and clang-17.0.6 .

[perfStack]

clang-17.0.6

[2/8] Building CXX object CMakeFiles/ot.dir/src/opus.cc.o
FAILED: CMakeFiles/ot.dir/src/opus.cc.o 
/usr/bin/clang++ -D_GNU_SOURCE -I/dev/shm/testbuild/opustags/build -I/dev/shm/testbuild/opustags/src -march=native -pipe -O3 -DNDEBUG -std=gnu++20 -I/usr/include -MD -MT CMakeFiles/ot.dir/src/opus.cc.o -MF CMakeFiles/ot.dir/src/opus.cc.o.d -o CMakeFiles/ot.dir/src/opus.cc.o -c /dev/shm/testbuild/opustags/src/opus.cc
/dev/shm/testbuild/opustags/src/opus.cc:171:19: error: no member named 'find_if' in namespace 'std'; did you mean 'std::ranges::find_if'?
  171 |         auto cover_tag = std::find_if(tags.comments.begin(), tags.comments.end(), is_cover);
      |                          ^~~~~~~~~~~~
      |                          std::ranges::find_if
/usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/14.1.1/../../../../include/c++/14.1.1/bits/ranges_util.h:543:33: note: 'std::ranges::find_if' declared here
  543 |   inline constexpr __find_if_fn find_if{};
      |                                 ^
/dev/shm/testbuild/opustags/src/opus.cc:175:25: error: no member named 'find_if' in namespace 'std'; did you mean 'std::ranges::find_if'?
  175 |         auto extra_cover_tag = std::find_if(std::next(cover_tag), tags.comments.end(), is_cover);
      |                                ^~~~~~~~~~~~
      |                                std::ranges::find_if
/usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/14.1.1/../../../../include/c++/14.1.1/bits/ranges_util.h:543:33: note: 'std::ranges::find_if' declared here
  543 |   inline constexpr __find_if_fn find_if{};
      |                                 ^
2 errors generated.
[4/8] Building CXX object CMakeFiles/ot.dir/src/cli.cc.o
FAILED: CMakeFiles/ot.dir/src/cli.cc.o 
/usr/bin/clang++ -D_GNU_SOURCE -I/dev/shm/testbuild/opustags/build -I/dev/shm/testbuild/opustags/src -march=native -pipe -O3 -DNDEBUG -std=gnu++20 -I/usr/include -MD -MT CMakeFiles/ot.dir/src/cli.cc.o -MF CMakeFiles/ot.dir/src/cli.cc.o.d -o CMakeFiles/ot.dir/src/cli.cc.o -c /dev/shm/testbuild/opustags/src/cli.cc
/dev/shm/testbuild/opustags/src/cli.cc:177:8: error: no member named 'transform' in namespace 'std'
  177 |                 std::transform(local_to_add.begin(), local_to_add.end(),
      |                 ~~~~~^
/dev/shm/testbuild/opustags/src/cli.cc:179:8: error: no member named 'transform' in namespace 'std'
  179 |                 std::transform(local_to_delete.begin(), local_to_delete.end(),
      |                 ~~~~~^
/dev/shm/testbuild/opustags/src/cli.cc:185:9: error: no member named 'transform' in namespace 'std'
  185 |                         std::transform(local_to_add.begin(), local_to_add.end(),
      |                         ~~~~~^
/dev/shm/testbuild/opustags/src/cli.cc:187:9: error: no member named 'transform' in namespace 'std'
  187 |                         std::transform(local_to_delete.begin(), local_to_delete.end(),
      |                         ~~~~~^
/dev/shm/testbuild/opustags/src/cli.cc:243:28: error: no member named 'count' in namespace 'std'
  243 |         auto newline_count = std::count(source.begin(), source.end(), opt.tag_delimiter);
      |                              ~~~~~^
5 errors generated.
[6/8] Building CXX object CMakeFiles/ot.dir/src/system.cc.o
ninja: build stopped: subcommand failed.
==> ERROR: A failure occurred in build().
    Aborting...

gcc-14.1.1

FAILED: CMakeFiles/ot.dir/src/opus.cc.o 
/usr/bin/c++ -D_GNU_SOURCE -I/dev/shm/testbuild/spe/opustags/build -I/dev/shm/testbuild/spe/opustags/src -O3 -DNDEBUG -std=gnu++20 -I/usr/include -MD -MT CMakeFiles/ot.dir/src/opus.cc.o -MF CMakeFiles/ot.dir/src/opus.cc.o.d -o CMakeFiles/ot.dir/src/opus.cc.o -c /dev/shm/testbuild/spe/opustags/src/opus.cc
In file included from /dev/shm/testbuild/spe/opustags/src/opus.cc:24:
/dev/shm/testbuild/spe/opustags/src/opustags.h:127:54: warning: ignoring attributes on template argument ‘int (*)(FILE*)’ [-Wignored-attributes]
  127 | struct file : std::unique_ptr<FILE, decltype(&fclose)> {
      |                                                      ^
/dev/shm/testbuild/spe/opustags/src/opustags.h: In constructor ‘ot::file::file(FILE*)’:
/dev/shm/testbuild/spe/opustags/src/opustags.h:128:74: warning: ignoring attributes on template argument ‘int (*)(FILE*)’ [-Wignored-attributes]
  128 |         file(FILE* f = nullptr) : std::unique_ptr<FILE, decltype(&fclose)>(f, &fclose) {}
      |                                                                          ^
/dev/shm/testbuild/spe/opustags/src/opus.cc: In function ‘std::optional<ot::picture> ot::extract_cover(const opus_tags&)’:
/dev/shm/testbuild/spe/opustags/src/opus.cc:171:31: error: ‘find_if’ is not a member of ‘std’; did you mean ‘find’?
  171 |         auto cover_tag = std::find_if(tags.comments.begin(), tags.comments.end(), is_cover);
      |                               ^~~~~~~
      |                               find
/dev/shm/testbuild/spe/opustags/src/opus.cc:175:37: error: ‘find_if’ is not a member of ‘std’; did you mean ‘find’?
  175 |         auto extra_cover_tag = std::find_if(std::next(cover_tag), tags.comments.end(), is_cover);
      |                                     ^~~~~~~
      |                                     find
[3/8] Building CXX object CMakeFiles/ot.dir/src/cli.cc.o
FAILED: CMakeFiles/ot.dir/src/cli.cc.o 
/usr/bin/c++ -D_GNU_SOURCE -I/dev/shm/testbuild/spe/opustags/build -I/dev/shm/testbuild/spe/opustags/src -O3 -DNDEBUG -std=gnu++20 -I/usr/include -MD -MT CMakeFiles/ot.dir/src/cli.cc.o -MF CMakeFiles/ot.dir/src/cli.cc.o.d -o CMakeFiles/ot.dir/src/cli.cc.o -c /dev/shm/testbuild/spe/opustags/src/cli.cc
In file included from /dev/shm/testbuild/spe/opustags/src/cli.cc:9:
/dev/shm/testbuild/spe/opustags/src/opustags.h:127:54: warning: ignoring attributes on template argument ‘int (*)(FILE*)’ [-Wignored-attributes]
  127 | struct file : std::unique_ptr<FILE, decltype(&fclose)> {
      |                                                      ^
/dev/shm/testbuild/spe/opustags/src/opustags.h: In constructor ‘ot::file::file(FILE*)’:
/dev/shm/testbuild/spe/opustags/src/opustags.h:128:74: warning: ignoring attributes on template argument ‘int (*)(FILE*)’ [-Wignored-attributes]
  128 |         file(FILE* f = nullptr) : std::unique_ptr<FILE, decltype(&fclose)>(f, &fclose) {}
      |                                                                          ^
/dev/shm/testbuild/spe/opustags/src/cli.cc: In function ‘ot::options ot::parse_options(int, char**, FILE*)’:
/dev/shm/testbuild/spe/opustags/src/cli.cc:177:22: error: ‘transform’ is not a member of ‘std’
  177 |                 std::transform(local_to_add.begin(), local_to_add.end(),
      |                      ^~~~~~~~~
/dev/shm/testbuild/spe/opustags/src/cli.cc:179:22: error: ‘transform’ is not a member of ‘std’
  179 |                 std::transform(local_to_delete.begin(), local_to_delete.end(),
      |                      ^~~~~~~~~
/dev/shm/testbuild/spe/opustags/src/cli.cc:185:30: error: ‘transform’ is not a member of ‘std’
  185 |                         std::transform(local_to_add.begin(), local_to_add.end(),
      |                              ^~~~~~~~~
/dev/shm/testbuild/spe/opustags/src/cli.cc:187:30: error: ‘transform’ is not a member of ‘std’
  187 |                         std::transform(local_to_delete.begin(), local_to_delete.end(),
      |                              ^~~~~~~~~
/dev/shm/testbuild/spe/opustags/src/cli.cc: In function ‘std::u8string format_value(const std::u8string&, const ot::options&)’:
/dev/shm/testbuild/spe/opustags/src/cli.cc:243:35: error: ‘count’ is not a member of ‘std’; did you mean ‘popcount’?
  243 |         auto newline_count = std::count(source.begin(), source.end(), opt.tag_delimiter);
      |                                   ^~~~~
      |                                   popcount

Likely due to ArchLinux's recent upgrade to GCC 14.1.1
Version : Release 1.10.0

[fmang]

Thank you for the report. The broken .cc files likely miss an #include <algorithm>. Would you like to make a pull request for that?