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#1 (**permalink**) 04-10-2008, 08:18 AM

Chris Ruprecht <chris@ruprecht.org> writes:
> I am trying to build PG 8.3Beta4 for MacOS Leopard.
> It works fine when using the default i386 architecture. However, this
> is not an option as Apple, in their wisdom, have chosen to build
> Apache as a 64-bit application and their PHP 5.2.4 module without PG
> support as a Intel 32, Intel 64, PPC 32 and PPC 64 type module. For
> those that don't know: Under MacOS, it is possible to build
> executables that will run native on multiple architectures, all
> contained in a single file - kind of weird, and pretty bloated.

You're not going to have a lot of luck building PG for those four
architectures from a single build run --- you really need a different
pg_config.h for each case. The specific failure you're seeing seems
to stem from SIZEOF_DATUM not agreeing with sizeof(Datum), but you
can bet your bottom dollar that that's just the tip of the iceberg.

I'd be somewhat interested to see a build approach that supports this,
but I don't want to spend any of my own time on it. I have a vague
suspicion that Apple probably built PHP four separate times and then
melded the executables after the fact.

regards, tom lane

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#2 (**permalink**) 04-10-2008, 08:18 AM

Chris Ruprecht wrote:
> Hey Tom, Shane,

> I'm good to run with the x86_64 only binary since my Apache is built
> using that architecture.

That's not a real reason to run pg in 64 bit.

Although you would need php and libpq to be the same architecture as
apache (the running architect if multiple available) - the postgresql
server can be 32 bit. If apache is only 64 bit then you will need a 64
bit libpq.

Apache calls functions in the php module which then calls functions in
the libpq - they must all have matching architectures available to do
this which is why apple supplies fat binary libs with osx.

From there to postgresql is a network connection (or local socket) so
each program is just sending data to the other - they don't need to be
the same architecture any more than you need a 64 bit sparc browser to
connect to a 64 bit sparc web server.

--

Shane Ambler
pgSQL (at) Sheeky (dot) Biz

Get Sheeky @ http://Sheeky.Biz

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Re: MacOS X 10.5.1 and compiling for multiple Architectures