Log Message:
Update to 1.6.6:
Changes since Guile 1.6.5 (changes in 1.6.6):

* Changes to the distribution

** srfi-39 should work now - a file was missing from the distribution.

** A libltdl related build problem has been fixed.

* Changes to the C interface

** A bug has been fixed that caused uvec_equalp to function improperly.

** In scm_charnames and scm_charnums, sp is now an alias for space.