Merge branches 'ng/check-typos-at-make-runtime' and 'ng/yacc-lex-fixlets' into ng...

* ng/check-typos-at-make-runtime:
  [ng] cleanup: unused variable in the automake script removed
  [ng] warns: also report typos for 'LOG_DEPENDENCIES' variables
  [ng] warns: typos in '_DEPENDENCIES' variables are now reported
  [ng] warns: typos in _SOURCES etc. reported at make runtime
  [ng] refactor: new make variables am__all_libs and am__all_ltlibs
  [ng] automake: new global variable '%known_ltlibraries'
  [ng] coverage: conditional defn of lib_LIBRARIES and lib_LTLIBRARIES

* ng/yacc-lex-fixlets:
  [ng] yacc: prefer use of automatic variables over automake-time transforms
  [ng] yacc/c++: prefer make-time processing over recipe-time one
  [ng] lex: fix a (mostly harmless) typo in code
  [ng] refactor: merge lang_{yacc,lex}_finish functions
  [ng] cleanup: don't error on 'YACCFLAGS' usage

diff --cc automake.in
Simple merge