Re: src/tools/msvc usage instructions

On Mon, 2 Oct 2006, Tom Lane wrote:

> Jeremy Drake <pgsql(at)jdrake(dot)com> writes:
> >> I grabbed flex and bison from GNUwin32
> >> (http://gnuwin32.sourceforge.net/packages/bison.htm)
>
> > This appears to not work out well. If I copy the generated files from
> > bison from a linux box, then they are ok, but if I try to use ones
> > generated using that version of bison, it does not compile.
>
> Hm, have you tried diff'ing the output files from the two cases? This
> is really probably a question for the flex and bison maintainers, not
> us, but it seems like it should work for moderately up-to-date versions
> of those tools. What compile failures do you get exactly?

I was just going to chalk it up to a bad matching of tool ports or
something and try to find a different bison, but if you are really
interested...

I get errors on any bison generated file. For simplicity of the diff, I
did not use the first failure I got, which was gram.c, but instead used
the much smaller bootparse.c file. I grabbed the bootparse.c files
generated on windows and on linux, did a diff -cw between them, and tarred
up the three files, which you can get from
http://www.jdrake.com/postgresql/bison-files-win32.tar.gz

The errors I got on this file were:
1>------ Build started: Project: postgres, Configuration: Release Win32 ------
1>Compiling...
1>bootparse.c
1>bootparse.tab.c(1065) : error C2449: found '{' at file scope (missing function header?)
1>bootparse.tab.c(1858) : error C2059: syntax error : '}'

and then a whole lot of random, uninteresting errors of the kind you get
when the compiler is so confused it no longer knows what it is doing.

I am currently trying to build a newer version of bison using mingw and
use it, but I am running into issues with that also.

Oh, I just got the email from Magnus which says do not use v2.1, but
1.875, so I guess that's what I did wrong. Oops!

>
> regards, tom lane
>
> ---------------------------(end of broadcast)---------------------------
> TIP 9: In versions below 8.0, the planner will ignore your desire to
> choose an index scan if your joining column's datatypes do not
> match
>
>

--
Drive defensively. Buy a tank.