inventor fails to compile 64-bit

[korsch@…]

The installation of "inventor" fails on Mac OS 10.6 (Snow Leopard) due to:

error: cast from 'void*' to 'int' loses precision

and

error: cast from 'void*' to 'XrmQuark' loses precision

I try to compile (port install) this on a MacBook Pro (32 bit), gcc 4.2.1

[css@…]

It looks like there are some definite 64-bit portability issues ... I don't know if Inventor ever supported 64-bit cleanly. Since the API is about 19 years old at this point, it's probably not something that can be cleanly resolved. I'll take a look into it, but I'm traveling this weekend, so it might be a while.

[css@…]

It does support 64-bit, so it might be a matter of tweaking the build settings. I'll have to dive through the upstream sources on this one.

[jmr@…]

Doesn't the description say this is happening on a 32-bit machine?

[css@…]

Replying to jmr@…:

Doesn't the description say this is happening on a 32-bit machine?

Yes, but the root cause of the issue is the change in pointer size. The compiler generates the error when casting from a 64-bit void* to a 32-bit integer. I'll have to check the build to get more details, but hopefully there are some flags to manage different data type sizes among the supported platforms.

[css@…]

The original SGI source does include support for 64-bit IRIX and Linux, but that support has never been investigated for Mac OS X. It should be possible, but it will take some time and dedicated effort to weed through the various build settings.

[jmr@…]

r74013

[css@…]

Very nice!