(debug-gc-assert-parsed-dead #f "for memory debugging:
ensure that all refs to parsed objects are dead. This is an internal option, and is switched on automatically for -ddebug-gc.")
(debug-lexer #f "debug the flex lexer")
+ (debug-page-breaking-scoring #f "dump scores for many different page breaking configurations")
(debug-parser #f "debug the bison parser")
(debug-property-callbacks #f "debug cyclic callback chains")
(debug-skylines #f "debug skylines")