Cannot build 2.9.3, get "different exception specifier"

user1@debian2:~/linuxcnc-dev/src$ make Reading 54/210 dependency files Done reading dependencies Reading 0/238 realtime dependency files Done reading realtime dependencies cp ../scripts/rtapi.conf ../tests/uspace/spawnv-root/rtapi.conf Compiling rtapi/uspace_rtai.cc In file included from rtapi/uspace_rtai.cc:10: /usr/include/x86_64-linux-gnu/sys/io.h:38:12: error: declaration of ‘int iopl(int) noexcept’ has a different exception specifier    38 | extern int iopl (int __level) __THROW;       |            ^~~~ In file included from /usr/include/rtai/rtai_lxrt.h:522,                  from rtapi/uspace_rtai.cc:6: /usr/include/rtai/asm/rtai_lxrt.h:170:38: note: from previous declaration ‘int iopl(int)’   170 | #define rtai_iopl()  do { extern int iopl(int); iopl(3); } while (0)       |                                      ^~~~ /usr/include/rtai/rtai_lxrt.h:605:9: note: in expansion of macro ‘rtai_iopl’   605 |         rtai_iopl();       |         ^~~~~~~~~ make: *** [Makefile:288: objects/rtapi/uspace_rtai.o] Error 1