2004-09-07 14:56:14 +08:00
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#
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# Check for Bison.
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#
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# This macro verifies that Bison is installed. If successful, then
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# 1) YACC is set to bison -y (to emulate YACC calls)
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# 2) BISON is set to bison
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#
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AC_DEFUN([AC_PROG_BISON],
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2004-11-25 12:42:25 +08:00
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[AC_CACHE_CHECK([],[llvm_cv_has_bison],
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2004-09-07 14:56:14 +08:00
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[AC_PROG_YACC()
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])
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if test "$YACC" != "bison -y"; then
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AC_MSG_ERROR([bison not found but required])
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else
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AC_SUBST(BISON,[bison],[location of bison])
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fi
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])
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