Hi,

I am having trouble building the latest version of seastar (master branch).

Platform: Ubuntu 22.04.4 LTS
g++ version: 12.3.0
Boost version: 1.73

Configured with command:
./configure.py --mode=release --prefix=/opt/seastar --without-tests

The compilation fails with log
[53/100] Building CXX object CMakeFiles/seastar.dir/src/net/ethernet.cc.o FAILED: CMakeFiles/seastar.dir/src/net/ethernet.cc.o /usr/bin/g++ -DBOOST_NO_CXX98_FUNCTION_BASE -DFMT_LOCALE -DFMT_SHARED -DSEASTAR_API_LEVEL=7 -DSEASTAR_DEFERRED_ACTION_REQUIRE_NOEXCEPT -DSEASTAR_DEPRECATED_OSTREAM_FORMATTERS -DSEASTAR_HAS_MEMBARRIER -DSEASTAR_HAVE_ASAN_FIBER_SUPPORT -DSEASTAR_HAVE_HWLOC -DSEASTAR_HAVE_NUMA -DSEASTAR_HAVE_SYSTEMTAP_SDT -DSEASTAR_HAVE_URING -DSEASTAR_LOGGER_COMPILE_TIME_FMT -DSEASTAR_LOGGER_TYPE_STDOUT -DSEASTAR_PTHREAD_ATTR_SETAFFINITY_NP -DSEASTAR_SCHEDULING_GROUPS_COUNT=16 -DSEASTAR_SSTRING -DSEASTAR_STRERROR_R_CHAR_P -I/home/alevandal/work/seastar/include -I/home/alevandal/work/seastar/build/release/gen/include -I/home/alevandal/work/seastar/build/release/gen/src -I/home/alevandal/work/seastar/src -isystem /home/alevandal/work/boost_1_73_0 -O2 -g -DNDEBUG -Wno-maybe-uninitialized -Wno-error=unused-result -fno-semantic-interposition -UNDEBUG -Wall -Werror -Wimplicit-fallthrough -Wdeprecated -Wno-error=deprecated -Wno-error=stringop-overflow -Wno-error=array-bounds -Wdeprecated-declarations -Wno-error=deprecated-declarations -fvisibility=hidden -gz -std=gnu++23 -MD -MT CMakeFiles/seastar.dir/src/net/ethernet.cc.o -MF CMakeFiles/seastar.dir/src/net/ethernet.cc.o.d -o CMakeFiles/seastar.dir/src/net/ethernet.cc.o -c /home/alevandal/work/seastar/src/net/ethernet.cc /home/alevandal/work/seastar/src/net/ethernet.cc: In function ‘std::ostream& seastar::net::operator<<(std::ostream&, ethernet_address)’: /home/alevandal/work/seastar/src/net/ethernet.cc:34:15: error: no matching function for call to ‘print(std::ostream&, const char [42], u, u, u, u, u, u)’ 34 | fmt::print(os, "{:02x}:{:02x}:{:02x}:{:02x}:{:02x}:{:02x}", | ~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 35 | u(m[0]), u(m[1]), u(m[2]), u(m[3]), u(m[4]), u(m[5])); | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ In file included from /usr/include/fmt/format.h:48, from /home/alevandal/work/seastar/include/seastar/core/sstring.hh:40, from /home/alevandal/work/seastar/include/seastar/core/format.hh:24, from /home/alevandal/work/seastar/include/seastar/core/print.hh:24, from /home/alevandal/work/seastar/src/net/ethernet.cc:22: /usr/include/fmt/core.h:3206:17: note: candidate: ‘void fmt::v8::print(format_string<T ...>, T&& ...) [with T = {const char (&)[42], unsigned int, unsigned int, unsigned int, unsigned int, unsigned int, unsigned int}; format_string<T ...> = basic_format_string<char, const char (&)[42], unsigned int, unsigned int, unsigned int, unsigned int, unsigned int, unsigned int>]’ 3206 | FMT_INLINE void print(format_string<T...> fmt, T&&... args) { | ^~~~~ /usr/include/fmt/core.h:3206:43: note: no known conversion for argument 1 from ‘std::ostream’ {aka ‘std::basic_ostream<char>’} to ‘fmt::v8::format_string<const char (&)[42], unsigned int, unsigned int, unsigned int, unsigned int, unsigned int, unsigned int>’ {aka ‘fmt::v8::basic_format_string<char, const char (&)[42], unsigned int, unsigned int, unsigned int, unsigned int, unsigned int, unsigned int>’} 3206 | FMT_INLINE void print(format_string<T...> fmt, T&&... args) { | ~~~~~~~~~~~~~~~~~~~~^~~ /usr/include/fmt/core.h:3223:17: note: candidate: ‘template<class ... T> void fmt::v8::print(FILE*, format_string<T ...>, T&& ...)’ 3223 | FMT_INLINE void print(std::FILE* f, format_string<T...> fmt, T&&... args) { | ^~~~~ /usr/include/fmt/core.h:3223:17: note: template argument deduction/substitution failed: /home/alevandal/work/seastar/src/net/ethernet.cc:34:16: note: cannot convert ‘os’ (type ‘std::ostream’ {aka ‘std::basic_ostream<char>’}) to type ‘FILE*’ 34 | fmt::print(os, "{:02x}:{:02x}:{:02x}:{:02x}:{:02x}:{:02x}", | ^~ [62/100] Building CXX object CMakeFiles/seastar.dir/src/core/reactor.cc.o ninja: build stopped: subcommand failed.

I have tried boost-1.78, boost-1.86, g++ 11, clang 14, still without success.

Could you provide any advise?