Irrlicht on Linux

Pink Floyd · Post by **Pink Floyd** » Sat Jan 29, 2005 1:45 pm

Hello guys,
can someone tell me how to configure the libraries for working with Irrlicht on Linux?
I tried to pass to g++ the .a files as options:
g++ mysource.cpp -libIrrlicht.a .....
but /usr/bin/ld doesn't find them (I've placed them in my app's same directory)

any suggestion?

Andreas · Post by **Andreas** » Sat Jan 29, 2005 4:01 pm

Hi there,

i had some trouble compilling the first tutorial, this is what finally worked for me:

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g++ -I/usr/include/irrlicht/ -o main main.c  -lIrrlicht

Of course you have to change the pathname according to your installation...

If i misunderstood your problem, please ignore my post.

so long
andreas

Pink Floyd · Post by **Pink Floyd** » Sat Jan 29, 2005 4:27 pm

where did you place the .a libs?

deprecated · Post by **deprecated** » Sat Jan 29, 2005 5:02 pm

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 g++ main.cpp -o main -I"[path to IRR include]/include" -I"/usr/X11R6/include" -L"/usr/X11R6/lib" -L"[path to irr lib]/lib/Linux" -lIrrlicht -lGL -lXxf86vm -lXext -lX11 -lz -ljpeg

-I is where your irrlicht headers (and X11 headers) are located.
-L where the irrlich lib is located.

The other libs use ld to fine em...

I keep my libs / includes in the Irrlicht dir, so that i can have multiple versions of the engine without having to keep more than a makefile up-to-date.

(note.. if you untar source and end up modifying it, remove old include dir and make a sybolic link from ./Irrlicht/include --- to ---> ./Irrlicht/source/Irrlicht/include)

Pink Floyd · Post by **Pink Floyd** » Sat Jan 29, 2005 5:47 pm

here's what happens

pinkfloyd@pinkfloyd:~/Desktop/programmazione/3d/progs $ g++ model.cpp -o model -I"/h*/p*/D*/pro*/3d/irr*/inc*/" -I"/usr/X11R6/include" -L"/h*/p*/D*/pro*/3d/irr*/lib/" -L"/usr/X11R6/lib" -lIrrlicht -lGL -lXxf86vm -lXext -lX11 -lz -ljpeg /usr/bin/ld: cannot find -lIrrlicht
collect2: ld returned 1 exit status

I'm sure that the include and lib directories are true
I've also tried to keep them in an easier path (simply "/include/" and "/lib/") but I always get that error:

cannot find lIrrlicht

Pink Floyd · Post by **Pink Floyd** » Mon Jan 31, 2005 8:29 pm

can someone give me a help?
(sorry for the double post)

mm765 · Post by **mm765** » Mon Jan 31, 2005 9:24 pm

id try it with full pathnames instead of the shortened ones(*)

Andreas · Post by **Andreas** » Tue Feb 01, 2005 9:15 am

Hi again.

OK, i'll explain how it works on my system, but in short, i guess the problem is that you don't specify the path to libIrrlicht.a correctly (I think it needs a "-L")...

so, my system:
-Gentoo Linux with kernel 2.6.10,
-Irrlicht version 0.7 (extracted zip, not the ebuild)

the important paths:

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/home/sensen/Coden/main.cpp

the code from tutorial1 copy & pasted, see http://irrlicht.sourceforge.net/tut001.html

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/opt/noebuild/irrlicht

the location where i unziped the irrlicht.zip

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/usr/X11R6

this is the path of needed X libraries

Now to compile main.cpp while in the directory /home/sensen/Coden i simply run:

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g++ -I/opt/noebuild/irrlicht/include/ -o main main.cpp -L/opt/noebuild/irrlicht/lib/Linux/ -lIrrlicht -L/usr/X11R6 -lX11 -lXxf86vm -ljpeg -lz -lGL

I hope this helps, a short notice of success would be nice

so long,
Andreas

Pink Floyd · Post by **Pink Floyd** » Tue Feb 01, 2005 12:54 pm

wohaaaa! it works, thank you Andreas

The only thing I had to change was the location of X11 libraries, which is not (for me) /usr/X11R6 but /usr/X11R6/lib

Now I can start working with Irrlicht on both Windows and Linux

(I use Ubuntu)