Replace *next_function declarations with nextdecl macro.
Replace *next_function declarations with nextdecl macro.

solderzzc/fakechroot,solderzzc/fakechroot,giuliolunati/fakechroot,giuliolunati/fakechroot,solderzzc/fakechroot,solderzzc/fakechroot,andrewgregory/fakechroot,andrewgregory/fakechroot,giuliolunati/fakechroot,andrewgregory/fakechroot,solderzzc/fakechroot