"帅猛" <shuaimeng@db.pku.edu.cn> writes:
> make[4]: Entering directory `/home/sm/pgsql7.4/src/pl/plpgsql/src'
> bison -y -d gram.y
> NONE:0: /usr/bin/m4: ERROR: EOF in string
I'd say you have a broken bison installation; or possibly bison is okay
but m4 isn't (recent bisons depend on m4, and I think require it to be
reasonably late-model gnu m4).
regards, tom lane