🚀 go-pugleaf

Emacs 19.25 preprocessor cruft:

#if tests that should perhaps be removed because nothing sets them,
or else they should be defined in the appropriate s/ or m/ files:

BROKEN_FASYNC src/sysdep.c
CANNOT_UNEXEC src/sysdep.c src/unexaix.c src/unexec.c
DID_REMOTE src/process.c
GCC_CTORS_IN_LIBC src/emacs.c
GETPGRP_NEEDS_ARG src/systty.h
NO_META_BIT lib-src/emacstool.c
RTPC_REGISTER_BUG src/data.c

#defines that should probably be removed because nothing uses them,
or else they should be checked in the appropriate src files:

BROKEN_SIGIO src/s/gnu.h
BUFFER_SIZE_FACTOR src/sysdep.c
CONSTANTLIM src/bytecode.c
CPTIME_SYMBOL src/m/hp800.h
DKSTAT_HEADER_FILE src/m/tahoe.h
DKXFER_SYMBOL src/m/hp800.h
DK_HEADER_FILE src/m/next.h
DONT_COPY_FLAG src/m/gec63.h
DONT_DEFINE_SIGNAL src/s/isc2-2.h
HIGHLIGHT_FACE src/dispextern.h
HIGHLIGHT_UNDERLINE_FACE src/dispextern.h