cc -pthread  -Wall -Wextra -Werror -Wno-error=deprecated -Wno-error=deprecated-declarations fmtmsg/MM_NULLMC.c -o fmtmsg/MM_NULLMC -D_POSIX_C_SOURCE=202405L -lm -lpthread -lrt 
relibc getrlimit(3, 0x7ffffffffc80): not implemented
relibc getrlimit(3, 0x7ffffffffbb0): not implemented
relibc getrlimit(9, 0x7ffffffffb70): not implemented
relibc getrlimit(9, 0x7ffffffffba0): not implemented
relibc getrlimit(5, 0x7ffffffffba0): not implemented
relibc getrlimit(9, 0x7ffffffffb70): not implemented
fmtmsg/MM_NULLMC.c:7:10: fatal error: fmtmsg.h: No such file or directory
    7 | #include <fmtmsg.h>
      |          ^~~~~~~~~~
compilation terminated.