3rd_party/alphanum/alphanum.hpp:298:38: error: no template named 'binary_function' in namespace 'std'; did you mean '__binary_function'?

[yurivict]

Build failure with clang-16 which now defaults to c++20.
std::binary_function has been deprecated in c++17, and you don't set the -std=c++xx argument, so the sources are treated as c++20.

Please define the C++ level in your makefiles, and remove deprecated functions.

Version: 2.5.0
FreeBSD 14

[carrotIndustries]

and you don't set the -std=c++xx argument

I do, so what's not working?

horizon/Makefile

Line 928 in 2a7aedc

CXXFLAGS += $(DEBUGFLAGS) $(DEFINES) $(OPTIMIZE) $(PKG_CONFIG_LIBS) -MP -MD -pthread $(WARNFLAGS) -std=c++17

[yurivict]

std::binary_function is deprecated in c++17.
This means the C++ code is invalid: it uses a non-existent feature.

[carrotIndustries]

Here's the patch: https://github.com/horizon-eda/horizon/commit/1efad3028a1953af2cf62b518a54ffeb309977bc.patch

[yurivict]

Thanks!