jack-capture FTBFS

0.9.73-4 in proposed is FTBFS for all architectures with the error

jack_capture.c:912:5: error: conflicting types for ‘asprintf’; have ‘int(char **, char *, ...)’
  912 | int asprintf(char **buffer, char *fmt, ...) {
      | ^~~~~~~~
In file included from jack_capture.c:24:
/usr/include/stdio.h:401:12: note: previous declaration of ‘asprintf’ with type ‘int(char ** restrict, const char * restrict, ...)’
  401 | extern int asprintf (char **__restrict __ptr,
      | ^~~~~~~~

I also noticed that the currently released version 0.9.73-3 is failing with the same error in my local build environment, so could be due to the gcc upgrade, or another external factor.