Experimental Physics and
Industrial Control System

"Pelaia II, Tom" <[email protected]> · Mon, 27 Jun 2011 13:15:11 -0400

I prefer the current mechanism which allows the option (opt in) for building fat binaries. It has worked well for us, and was absolutely critical for Leopard users. For example, under Leopard Java 1.6 was strictly 64 bit, but Safari (along with all other major browsers) was only 32 bit. So, to get JCA JNI working with Java we needed a 64 bit build and for CAML users we needed a 32 bit build. The fat binary just worked. I distributed a single fat binary to all the users and the end users didn't even have to know about the 32/64 bit stuff. 

By default, apps will run 64 bit unless the hardware is strictly 32 bit. Libraries will automatically be loaded to match the architecture of the calling process.

If you really want the EPICS_HOST_ARCH to report "64" just enable the 64 bit kernel (as I have). It is easy if your hardware supports it.

On Jun 27, 2011, at 12:29 PM, J. Lewis Muir wrote:

> EPICS build system supports it.  But I'm just saying that if, in
> the interest of simplifying the build system or checks like what
> Ben is trying to do, I'd be OK if support for fat binaries was
> dropped.

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System