* libguile/Makefile.am (AM_CPPFLAGS):
(libguile_@GUILE_EFFECTIVE_VERSION@_la_SOURCES): If ENABLE_JIT, build
lightning.
(EXTRA_DIST): Add lightning files.
* libguile/lightning/lightning.am (lightning_extra_files): Add COPYING
and related files to the dist.
* libguile/jit.c:
* libguile/jit.h: New files.
* libguile/lightning/Makefile.am:
* libguile/lightning/lib/Makefile.am: Remove.
* libguile/lightning/lightning.am: Add all the C and H files here.
* libguile/lightning/configure.ac: Remove AC_OUTPUT clause.
* libguile/lightning/lightning.am: New file. libguile will include
this. Contents initially from include/Makefile.am and
include/lightning/Makefile.am.
* libguile/lightning/include/Makefile.am:
* libguile/lightning/include/lightning/Makefile.am: Remove.
* libguile/lightning/configure.ac: Remove output of include Makefiles.