Re: [HACKERS] building Postgresql-9.0.10 with patching MERGE keyword

Lelisa Diriba <lelisa0404@gmail.com> writes:
> I am trying to build with Patching MERGE statement or  keyword in
> Postgresql 9.0.10 on ubuntu OS  and am getting a couple errors related to
> bootstrap libraries.

9.0 is a bit old to be of any interest ...

> In file included from bootparse.y:420:0:
> bootscanner.l: In function 'boot_yylex':
> bootscanner.l:110:10: error: 'XFORCE' undeclared (first use in this
> function)

In 9.5 and up, I see this in bootparse.y:

%token XFORCE XNOT XNULL

but previous versions have neither that declaration nor any uses of
those symbols.  I suspect you tried to back-patch a modern version
of bootscanner.l without also back-patching bootparse.y.  Or maybe
you just need to remove and rebuild bootparse.c.
        regards, tom lane