demo problem compiling in Linux with codeblocks....

[budword]

I'm trying to get the demo from examples to run on Kubuntu, coding with codeblocks. I opened up the source with codeblocks, when I compiled, I got some errors about irrklang, I downloaded irrklang, (found no linux binarys though), and added them to the search path, and compiled again, this time it said, "no errors", but I can't find the result, and it doesn't start on it's own when I use "build and run" from the drop down menu. (The hello world tutorial does, so I have the basics set up correctly at least.)

The only clues I have to go by aren't even error messeges, just some messeges from the build log. Here they are, I have no idea what they mean.

Linking console executable: ../../bin/Linux/Demo
irrlicht/examples/Demo/CDemo.o: No such file or directory
irrlicht/examples/Demo/CMainMenu.o: No such file or directory
irrlicht/examples/Demo/resscript.res: No such file or directory

No executable shows up there though, and codeblocks says everything compiled without errors, so I have no idea what I'm doing wrong.

Can anyone point me in the right direction ?

Thanks much...

David

P.S. When I got the hello world tutorial to run I had to change the relative paths to the model to an absolute path, is there some chance that something similar is going on here ?

[hybrid]

It sounds as if it does not work at all. You will laso need a library under Linux for irrKlang, set up proper path for linking etc. But if no .o file is created (or found) you won't get anything.

[Wyszo]

The simplest solution would be to just use make instead of Code::Blocks.

[budword]

I don't mind using the command line at all, but I don't know anything about make. Is there an option with make to identify the include folder of irrlicht ? And all the other lib's I have to define in the build options of codeblocks ? Or is that what a makefile is for ? Just for the demo project in codeblocks there are 3 folders with a million subfolders for sources, headers and "resources", whatever the hell I need those for. It's an awful lot for a novice to get his head around all at once.

Has anyone run across any good tutorials on building irrlicht projects via the command line ? I've googled about irrlicht for the last 2 weeks or so and I've never seen one. Even just a good read on using command line tools on a complex project would come in handy for a novice.

I prefer the console with the smaller projects I'm used to, if I make an error it's much easier to track down and fix, with an IDE I'm not sure if the problem is code or configuration, so I would love to just use the command line, but I don't really see how that's possible when you start working on a larger project.

Has anyone here had success with just using command line tools on a larger project ?

Thanks much for sharing your thoughts...

David

[Wyszo]

I don't have time to write detailed answer, but here is what you need to do:

1. open terminal
2. enter the directory with irrlicht
3. enter directory "source/irrlicht"
4. run make under fakeroot (type: sudo make)

There should be no compiler or linker errors. You will find your compiled libirrlicht.a in /usr/local/lib directory (or /usr/local/lib/irrlicht - I don't really remember). That's exactly where gcc looks for library files. So now you just have to add -lirrlicht in your project to linker options under code::blocks. Simple.

[hybrid]

Of course you will never run make as root, neither sudo nor su nor anyway else. The onyl time you might have to be root is with 'make install'.

[Wyszo]

Of course hybrid is absolutely right. I was in hurry when I was writting previous post, sorry - my mistake

[budword]

I've already used codeblocks to build the hello world example, and solved a few minor bugs, so I know that part is working at least. I did copy the irrlicht.a to /usr/lobal/lib, but still came out with a bunch of errors, that I had before I defined the correct lib locations in codeblocks, so I don't believe gcc is finding irrlicht.a.

Ok, I guess that might be a little confusing. So, I tried to compile the demo from the command line, just using "make" from the demo directory. I got these errors.

g++ -O3 -ffast-math -I../../include -I/usr/X11R6/include -c -o CDemo.o CDemo.cpp
In file included from CDemo.cpp:4:
CDemo.h:21:91: error: irrKlang.h: No such file or directory
CDemo.h:65: error: ‘audio’ has not been declared
CDemo.h:65: error: ISO C++ forbids declaration of ‘ISoundEngine’ with no type
CDemo.h:65: error: expected ‘;’ before ‘*’ token
CDemo.h:66: error: ‘audio’ has not been declared
CDemo.h:66: error: ISO C++ forbids declaration of ‘ISoundSource’ with no type
CDemo.h:66: error: expected ‘;’ before ‘*’ token
CDemo.h:67: error: ‘audio’ has not been declared
CDemo.h:67: error: ISO C++ forbids declaration of ‘ISoundSource’ with no type
CDemo.h:67: error: expected ‘;’ before ‘*’ token
CDemo.cpp: In constructor ‘CDemo::CDemo(bool, bool, bool, bool, bool, irr::video::E_DRIVER_TYPE)’:
CDemo.cpp:14: error: ‘irrKlang’ was not declared in this scope
CDemo.cpp: In destructor ‘virtual CDemo::~CDemo()’:
CDemo.cpp:28: error: ‘irrKlang’ was not declared in this scope
CDemo.cpp: In member function ‘void CDemo::run()’:
CDemo.cpp:74: error: ‘irrKlang’ was not declared in this scope
CDemo.cpp: In member function ‘void CDemo::shoot()’:
CDemo.cpp:670: error: ‘ballSound’ was not declared in this scope
CDemo.cpp:671: error: ‘irrKlang’ was not declared in this scope
CDemo.cpp: In member function ‘void CDemo::createParticleImpacts()’:
CDemo.cpp:718: error: ‘irrKlang’ was not declared in this scope
CDemo.cpp:720: error: ‘audio’ has not been declared
CDemo.cpp:720: error: ‘sound’ was not declared in this scope
CDemo.cpp:721: error: ‘impactSound’ was not declared in this scope
CDemo.cpp: In member function ‘void CDemo::startIrrKlang()’:
CDemo.cpp:748: error: ‘irrKlang’ was not declared in this scope
CDemo.cpp:748: error: ‘audio’ has not been declared
CDemo.cpp:755: error: ‘audio’ has not been declared
CDemo.cpp:755: error: ‘snd’ was not declared in this scope
CDemo.cpp:767: error: ‘ballSound’ was not declared in this scope
CDemo.cpp:768: error: ‘impactSound’ was not declared in this scope
make: *** [CDemo.o] Error 1

I think gcc can't find irrlicht or irrklang. Do you solve this by editing the makefile ? Or calling an option when invoking make ? Seems like an ide would simplify matters here, it seems to work a little better anyway. Once again, I have no idea what I'm doing wrong.

Thanks much for all your help, and taking the time to point me in the right direction.

David

[Wyszo]

First of all - read the output Everything is written there.
Second of all - find irrKlang.h, copy path to irrklang.h and add option -Iyour_path_to_irrKlang.h to during your compilation.

Oh, and if you haven't install irrKlang - better don't tell us about it
And one last thing - you have internet access - try to learn self-dependence.