bug#70090: Build failure

[Konrad Podczeck]

With the code from today, 15.30, building Emacs failed, with the following 
error message:


Undefined symbols for architecture arm64:
  "_syms_of_json", referenced from:
      _main in emacs.o
ld: symbol(s) not found for architecture arm64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make[3]: *** [temacs] Error 1
make[2]: *** [src] Error 2
make[1]: *** [actual-bootstrap] Error 2
***
*** "make bootstrap" failed with exit status 2.

make[1]: *** [advice-on-failure] Error 2
make: *** [bootstrap] Error 2


Konrad Podczeck