clang compile error

[FFroehlich]

/Users/frohlif/Documents/projects/AMICI/src/misc.cpp:86:21: error: variable length arrays in C++ are a Clang extension [-Werror,-Wvla-cxx-extension]
   86 |     void* callstack[last_frame];
      |                     ^~~~~~~~~~
/Users/frohlif/Documents/projects/AMICI/src/misc.cpp:86:21: note: initializer of 'last_frame' is not a constant expression
/Users/frohlif/Documents/projects/AMICI/src/misc.cpp:85:15: note: declared here
   85 |     int const last_frame = first_frame + maxFrames;
      |               ^
1 error generated.
make[2]: *** [CMakeFiles/amici.dir/src/misc.cpp.o] Error 1
make[2]: *** Waiting for unfinished jobs....
make[1]: *** [CMakeFiles/amici.dir/all] Error 2

with

Apple clang version 17.0.0 (clang-1700.0.13.3)
Target: arm64-apple-darwin24.4.0
Thread model: posix

unclear why this only crops up now, looks like clang 17 is 2 years old, maybe change in error policy?