Am Mittwoch, dem 28.08.2024 um 21:29 +0100 schrieb Jonathan Wakely: > It was intentional, to clean up and formalise which headers are > usable > in freestanding mode. > See > https://gcc.gnu.org/onlinedocs/libstdc++/manual/using_dynamic_or_shared.html#manual.intro.using.linkage.freestanding > for details on the support in GCC 13 and 14. > > However, I think we need to revisit the decision and relax some of > the > new headers so they work for freestanding again. > See https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109814 and > https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113398 > Most of <chrono> is in the same category and would Just Work if we > removed the #error > > Hi Jonathan, thanks for the enlightment! As i read through your links i am happy that the newer compilers are more compliant to the standard. The past showed me, it's always better to stay as close to the standard as possible. For my chrono problem, i switched to boost::chrono (header only without error code). This was pretty straight forward. As i already use boost no big hassle. As i looked for the freestanding c++ standard i found that: https://en.cppreference.com/w/cpp/freestanding I wasn't aware about that... Now i can use my 14.2 compiler. Bye Georg