configure: error: You need at least version 2.2 of the 'bison' parser generator to compile WebKit correctly for ARM
/usr/local/bin/./bison -d -p cssyy WebCore/css/CSSGrammar.y -o ./DerivedSources/CSSGrammar.cpp WebCore/css/CSSGrammar.y:352.11-20: symbol maybe_sgml redefined make: *** [DerivedSources/CSSGrammar.cpp] Error 1