Build failure (master; cygwin)

[Robert Pluim]

Hi,

it looks like the following change broke compilation of master under
cygwin:

  commit 825351bcce8a6697905310793d82c57449500755
  Author: Glenn Morris <address@hidden>
  Date:   Sun Nov 23 16:16:57 2014 -0800
  
      Reduce nt and src Makefile duplication wrt emacs.res

make -C ../nt ../src/emacs.res
make[3]: Entering directory '/cygdrive/c/users/rpluim/space/emacs.git/nt'
make[3]: *** No rule to make target 'emacs.rc', needed by '../src/emacs.res'.  
Stop.
make[3]: Leaving directory '/cygdrive/c/users/rpluim/space/emacs.git/nt'
Makefile:720: recipe for target 'emacs.res' failed

There's an emacs.rc.in in ../nt, but it looks like it's not been
processed into emacs.rc

Regards

Robert