Latest master is broken

[Eli Zaretskii]

It produces a warning, and then aborts during loadup:

  In file included from fns.c:30:0:
  fns.c: In function 'make_hash_table':
  fns.c:3693:53: warning: implicit conversion from 'float' to 'double' to match 
other operand of binary expression [-Wdouble-promotion]
     eassert (0 < rehash_threshold && rehash_threshold <= 1.0);
                                                       ^
  lisp.h:196:27: note: in definition of macro 'eassert'
      (suppress_checking || (cond)     \
                             ^
  [...]
    CCLD     temacs.exe
  /bin/mkdir -p ../etc
  make -C ../lisp update-subdirs
  make[2]: Entering directory `/d/gnu/git/emacs/trunk/lisp'
  make[2]: Leaving directory `/d/gnu/git/emacs/trunk/lisp'
  ./temacs --batch  --load loadup bootstrap

  fns.c:3693: Emacs fatal error: assertion failed: 0 < rehash_threshold && 
rehash_threshold <= 1.0

Let me know if I can provide more information.