Akim Demaille 2127a37b83 Bison: enable all the warnings and fix them ...

First, fix 5547d36120: the definition of
YFLAGS was not passed into the Makefile: AC_SUBST does not suffice, we
need PHP_SUBST_OLD.  While at it, allow to pass variable and value at
the same time.

Then pass -Wall to bison, rather than only -Wempty-rules.

Use %precedence where associativity is useless.

Remove useless %precedence.
GH-5138

2020-02-01 14:21:21 +01:00

71 KiB

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