Good idea! I think it's mostly a Windows issue since macOS and Linux have been 64-bit for ages. On Windows this is how you can get the architecture:

1. open the file in binary mode
2. read the BYTE at location 0x3C to get the COFF header offset
3. seek to the COFF header offset
4. check that the first 4 bytes match the character sequence "PE\0\0" -> Windows binary
5. the next WORD is the machine type
6. 0x8664 -> x64, otherwise 32bit

https://docs.microsoft.com/en-us/windows/win32/debug/pe-format#machine-types https://superuser.com/a/889267

We would only need to do this check if LoadLibrary fails.

Christof

Gesendet: Freitag, 09. August 2019 um 18:22 Uhr Von: "Miller Puckette" msp@ucsd.edu An: rolfm@dds.nl Cc: "Pd list" pd-list@lists.iem.at Betreff: Re: [PD] [PD-announce] pd 0.50-0 test1 released

There should be a better error message for this... maybe I can find a way Pd can detect the mismatch instead of just failing. This is likely to cause a lot of people a lot of trouble.

thanks Miller

On Fri, Aug 09, 2019 at 01:05:09PM +0200, rolfm@dds.nl wrote:

...

rolfm@dds.nl schreef op 09-08-2019 13:00:

sorry, my bad: i used the 64-bits version instead of i386

...

opening my patch, which doesn't give problems in 0.48.1 or 0.49.0, with the test1 release it gives this:

C:\Users\Gebruiker\AppData\Roaming\Pd\zexy\list2symbol.dll: couldn't load list2symbol _ ... couldn't create C:\Users\Gebruiker\AppData\Roaming\Pd\zexy\s2l.dll: couldn't load s2l ... couldn't create C:\Users\Gebruiker\AppData\Roaming\Pd\zexy\l2s.dll: couldn't load l2s _ ... couldn't create C:\Users\Gebruiker\AppData\Roaming\Pd\zexy\l2s.dll: couldn't load

looks like something changed or is missing.

rolf

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