Hi,

How to I create a GUID under Linux? I executed the code below under Windows without error. I then tested my code under Linux and it tells me "Identifier not found 'CreateGUID'". When I Ctrl+Click on CreateGUID, it takes me to sysutilh.inc at line 174, which is a function that does exist!

I am running Ubuntu Linux 5.10, Lazarus 0.9.13 and FPC 2.0.2

uses
 SysUtils;
...
var
 lGUID : TGUID;
begin
 CreateGUID(lGUID);

Regards,
- Graeme -

It works fine for me with fpc 2.0.2 under Darwin, can't see either why it wouldn't work on Linux.

Jonas

Implementations don't seem the same?

- Linux seems to try kernel then falls back to generating an own using urandom.
- Solaris, FreeBSD4 and Darwin always use urandom.
- FreeBSD5 uses syscall or libc function depending on FPC_USE_LIBC

I assume Solaris/Darwin could attempt kernel generation too (depending on major OS version maybe, like FreeBSD), Linux is missing libc implementation and always does an own thing bypassing system libs.

His problem is that it doesn't compile at all, not that it doesn't work.

Jonas

Under Linux it uses some kernel file (/var/proc/....) which if I "cat" returns a different GUID everytime, so that part works.

His problem is that it doesn't compile at all, not that it doesn't work.

Yup, so does that mean everybody else can compile and use CreateGUID under Linux? If so, I guess I will download a fresh copy of FPC, and see if that sorts out my problem.

Regards,
- Graeme -