Irrlicht 1.5, Code::Blocks, Linux - Linker issue [SOLVED]

[Repgahroll]

Hello, im porting my small app to Linux platform, and everything went well, i compiled the examples through individual makefiles and everything was working (at extremely good performance i must add, comparing to the older 1.4.1 release) i followed a tutorial on the wiki and copied the needed files to the system paths (usr/local/include, /usr/local/lib) and i opened the example cpb files using Code::Blocks (8.2), but when i try to build the most simple example (HelloWorld) it returns a strange error:

Code: Select all

||=== Irrlicht Example 01 Hello World, default ===|
.objs/main.o||In function `main':|
/home/alan/irrlicht-1.5/examples/01.HelloWorld/main.cpp|130|undefined reference to `irr::createDevice(irr::video::E_DRIVER_TYPE, irr::core::dimension2d<int> const&, unsigned int, bool, bool, bool, irr::IEventReceiver*)'|
||=== Build finished: 1 errors, 0 warnings ===|

It doesn't make sense to me.

Thank you very much for your patience and sorry my english.

[Acki]

It doesn't make sense to me.

then learn a bit more about compiler/linker warnings/errors !!!
this error tells you that the linker can't find the lib or finds a wrong lib !!!
be sure you're using the correct lib and that it can found !!!
look into the menu "Project->Build Options..." there you should enter the correct search pathes...

[Repgahroll]

It doesn't make sense because the cbp files that come with the examples already have everything linked*. (at least i think but i'll check as soon as possible)

Thank you man!

[Acki]

It doesn't make sense because the cbp files that come with the examples already have everything linked*. (at least i think but i'll check as soon as possible)

I'm not sure about Linux, but the project files should only point to the Windows lib and I think that is wrong for Linux, isn't it ???
or are there special projects for Linux you're using ???

[hybrid]

Yes, we have both Linux and Windows targets At least for the main library, but I hope that also the examples have this set up. However, the wrong target would raise many error messages. So I guess it should work. Maybe you have an incompatible shared object somewhere in your system path?

[Repgahroll]

SOLVED!!

It was just a linking problem .

For some reason the libraries didn't came linked on the cbp file... (maybe different versions).

I just linked everything and now it works like a charm .

The needed libraries are (on a default linux installation):

/usr/lib/libX11.a
/usr/lib/libXext.a
/usr/lib/libXxf86vm.a
/usr/lib/libGL.so

and of course the libIrrlicht.a, wherever it is. (for the examples you can use the relative path to it: ../../lib/Linux/libIrrlicht.a)

The issue was so simple i'm ashamed... next time i'll surely double check such little things .

Thank you all!

PS: I posted on advanced help room 'cause i thought it was a damn hard issue to solve

[clemens]

or did you forget to add a -lIrrlicht to your LDFLAGS-Makefile entry so that the linker knows where to look for code?

[Acki]

It was just a linking problem .

For some reason the libraries didn't came linked on the cbp file... (maybe different versions).

I just linked everything and now it works like a charm .

wow, who would think about such ???