Fix check for yacc/bison in configure script.#63
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MrIron-no wants to merge 1 commit intoUndernetIRC:mainfrom
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Fix check for yacc/bison in configure script.#63MrIron-no wants to merge 1 commit intoUndernetIRC:mainfrom
MrIron-no wants to merge 1 commit intoUndernetIRC:mainfrom
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Backport the idea from PR #63: instead of checking yacc by piping empty input to '$YACC -V -v --version' (which was unreliable), test whether it can actually parse a minimal grammar. AC_PROG_YACC already prefers 'bison -y' over byacc over yacc, so the manual bison preference from PR #63 is unnecessary with our automake setup.
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