Fix an issue while processing flex.skl in out-of-source build
Add disambiguation braces in multiple-levels `if’ in main.c
Fix warning about multiple definitions of `yytext_ptr’ macro in generated reentrant lexers
Add explicit cast of filename to (char*) in buf.c
Make lerrsf_fatal a “modern” multiple-parameters function
Fix implicit definitions warnings in test bison parsers
Replace autotools build system by CMake
Remove unused variable "num" in filter.c:filter_fix_linedirs
Remove unused variables "r", "readsz" and "buf" in filter.c:filter_apply_chain
Fix `unused agument' warning in parse.y:yyerror
Remove unused variable `opt' in scanopt.c:scanopt_err
Add build flags for pedantic error checking
Fix compiler warnings
Replace `char' type usages by YY_CHAR macro
Introduce charset backend declarations, options and tests
Introduce charset backend interface basic implementation
Add support of EBCDIC input charset
Add missing ';' in generated code
Increase flex stack size limit to 64MB
Increase CSIZE to Unicode alphabet size