* 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.
