[CCi] astfd.i -> astfd.o
astfd.c: In function ‘__ast_fdleak_fclose’:
astfd.c:283:24: error: argument 1 null where non-null expected [-Werror=nonnull]
  283 |                 return fclose(ptr);
      |                        ^~~~~~~~~~~
In file included from /usr/src/asterisk-21.5.0-rc1/include/asterisk/compat.h:49,
                 from /usr/src/asterisk-21.5.0-rc1/include/asterisk.h:22,
                 from astfd.c:30:
/usr/include/stdio.h:184:12: note: in a call to function ‘fclose’ declared ‘nonnull’
  184 | extern int fclose (FILE *__stream) __nonnull ((1));
      |            ^~~~~~
cc1: all warnings being treated as errors