CEGUI (Crazy Eddie's GUI) Forums

Hello CrazyEddie,

Out of curiosity, do you know by chance why Ubuntu 10.04 ships libcegui-mk2-1 with version 0.6.2-3 only while Ubuntu 9.10 had already been shipped with version 0.6.2-1?

Second question: Is it known that the Ubuntu 9.10 binary package 'libcegui-mk2-1' in combination with its developer package 'libcegui-mk2-dev' throws compiler errors in the CEGUIListHeaderSegment.h file?



In my applications i use the following includes:



Thank you for your prompt answer.

Hi,

Out of curiosity, do you know by chance why Ubuntu 10.04 ships libcegui-mk2-1 with version 0.6.2-3 only while Ubuntu 9.10 had already been shipped with version 0.6.2-1?

Isn't 0.6.2-3 greater than 0.6.2-1?

Is it known that the Ubuntu 9.10 binary package 'libcegui-mk2-1' in combination with its developer package 'libcegui-mk2-dev' throws compiler errors in the CEGUIListHeaderSegment.h file?

I don't recall any issues with out version(s) of the files - I can't speak for downstream maintainers though. It seems to me that something is interfering with definitions within that file, perhaps a macro of some kind? Which other headers are included prior to CEGUI.h? What happens if you ensure that CEGUI.h is seen first?

CE.

Hi Eddie,

Thank you for your answer.

CrazyEddie wrote:Isn't 0.6.2-3 greater than 0.6.2-1?

Sure, what I wanted to point out is why there is "only" a 0.6.2-3 release when you've already commited 0.7.x in your svn trunk.

I don't recall any issues with out version(s) of the files - I can't speak for downstream maintainers though. It seems to me that something is interfering with definitions within that file, perhaps a macro of some kind? Which other headers are included prior to CEGUI.h? What happens if you ensure that CEGUI.h is seen first?

I think the conflicting part is here:



Somehow None, Ascending and Descending seem not to be defined...

In my application the only includes are:




Thank you for your help.

RayMcCooney

I'll run some tests on the headers and get back to you

what I wanted to point out is why there is "only" a 0.6.2-3 release when you've already commited 0.7.x in your svn trunk.

We have no contact with the maintainers of the packages for the various distros, so I have no information as regards to this

CE.

I got around to testing this issue and it was easily reproduced. The problem is here:


Which basically means once X.h is included, any instance anywhere of the text 'None' is going to be replaced with 0L. This just goes to highlight why preprocessor macros are evil There are two possible solutions: ensure that any file that contains an instance of the text 'None' you wish to keep appears before any inclusion (explicit or implicit) of the X.h header, or undefine the macro prior to including any file affected by this.

HTH

CE.

Hi Eddie,

Putting my FreeGLUT includes below the CEGUI includes indeed solved the problem!
I can understand that you have no contact to the package maintainers, as most people probably use the library on microsoft windows anyway...

Thank you very much for your help!

Ray McCooney

Wow, what kind of asshole library has a preproc def for "None"?

X does

A lot of the issues are that some of these libs have huge amounts of historical baggage. It's a similar situation to the min / max macro definitions in the Windows.h header - seems like madness today, but aeons ago, probably made some kind of sense.

In fact, due to the amount of 'legacy' crap hanging around, especially in C headers and libs, it's pretty amazing that such conflicts and issues do not arise more often

CE.