1YACC: w - -B flag unsupported, reconfigure with --enable-btyacc 2Usage: YACC [options] filename 3 4Options: 5 -b file_prefix set filename prefix (default "y.") 6 -B create a backtracking parser 7 -d write definitions (.tab.h) 8 -h print this help-message 9 -H defines_file write definitions to defines_file 10 -i write interface (y.tab.i) 11 -g write a graphical description 12 -l suppress #line directives 13 -L enable position processing, e.g., "%locations" 14 -o output_file (default ".tab.c") 15 -p symbol_prefix set symbol prefix (default "yy") 16 -P create a reentrant parser, e.g., "%pure-parser" 17 -r produce separate code and table files (y.code.c) 18 -s suppress #define's for quoted names in %token lines 19 -t add debugging support 20 -v write description (y.output) 21 -V show version information and exit 22 23Long options: 24 --defines -H 25 --file-prefix -b 26 --graph -g 27 --help -h 28 --name-prefix -p 29 --no-lines -l 30 --output -o 31 --version -V 32