Compilation Error with Meaty Skeleton

[aether]

Hi,
I'm having an issue compiling Meaty Skeleton on a machine (Make 4, OSX).

The script build.sh returns:

In file included from stdio/printf.c:4:
include/stdio.h:4:10: fatal error: sys/cdefs.h: No such file or directory
4 | #include <sys/cdefs.h>
| ^~~~~~~~~~~~~
compilation terminated.
make: *** [Makefile:72: stdio/printf.libk.o] Error 1

Any help appreciated.

[Octocontrabass]

Did you clone the git repo? Have you made any changes to the files?