[MacOSX] Fails to link with Irrlicht 1.1. SVN

jonasled · Post by **jonasled** » Fri Sep 22, 2006 1:50 am

Checked out Irrlicht 1.1 SVN revision 239. It compiles, but when I try to link to the "libIrrlicht.a" I get a build error in Xcode:

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/usr/bin/ld: Undefined symbols:
irr::video::ITriangleRenderer2::setTexture(unsigned int, irr::video::CSoftwareTexture2*)
irr::video::ITriangleRenderer2::setRenderTarget(irr::video::IImage*, irr::core::rect<int> const&)
irr::video::ITriangleRenderer2::ITriangleRenderer2(irr::video::IZBuffer2*)
irr::video::ITriangleRenderer2::~ITriangleRenderer2()
irr::video::ITriangleRenderer2::~ITriangleRenderer2()
irr::video::ITriangleRenderer2::~ITriangleRenderer2()
typeinfo for irr::video::ITriangleRenderer2
virtual thunk to irr::video::ITriangleRenderer2::~ITriangleRenderer2()
virtual thunk to irr::video::ITriangleRenderer2::~ITriangleRenderer2()

This looks like the Xcode project is out of sync with the latest changes! If I do not remember to add "writepng.c" I get some Undefined symbols errors for that as well. What files do I need to add or is something else the matter?

vitek · Post by **vitek** » Fri Sep 22, 2006 2:53 am

Add ITriangleRenderer2.cpp to the project.

jonasled · Post by **jonasled** » Sat Sep 23, 2006 9:44 am

vitek wrote:Add ITriangleRenderer2.cpp to the project.

Thanks! Stupid me, that was pretty obvious once you pointed it out.

EDIT: In SVN revision 242 the following results in a build error on MacOS X and Linux:

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#ifdef _IRR_WINDOWS_

	c8 fpath[_MAX_PATH];
	p = _fullpath( fpath, filename.c_str(), _MAX_PATH);
	ret = p;

#elif (defined(LINUX) || defined(MACOSX))

	c8 fpath[PATH_MAX];
	p = realpath(filename.c_str(), fpath);
	ret = p;

#endif

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CFileSystem.cpp:183: error: 'PATH_MAX' was not declared in this scope
CFileSystem.cpp:184: error: 'fpath' was not declared in this scope
CFileSystem.cpp:184: error: 'realpath' was not declared in this scope

hybrid · Post by **hybrid** » Sat Sep 23, 2006 10:58 am

Fixed in revision 243 (but needs some more work because the realpath function is BAD

)

bitplane · Post by **bitplane** » Sat Sep 23, 2006 2:14 pm

oops sorry.. haven't got a linux box or a mac to test on

how is realpath bad? should it check for existence of the file before calling, or is there something really ugly about this function? i searched google but couldn't find anything

hybrid · Post by **hybrid** » Sat Sep 23, 2006 7:56 pm

If you read the man page of the function you'll find the note "Don't ever use this method". Basically because the MAX_PATH is not necessarily long enough and thus buffer overruns may occur. There is no alternative proposed, though.

jmiles · Post by **jmiles** » Tue Oct 24, 2006 11:49 pm

I apologize for being such a noob on this one, but...I am getting the same undefined symbols errors when building the samples. I have tried to add ITriangleRenderer2.cpp to the project but must not know what I am doing. I right clicked on the heading MacOSX-Irrlicht-Engine then selected add-existing files and added ITriangleRenderer2.cpp and on building again, received the same error...what did I do wrong?

thanks

jmiles · Post by **jmiles** » Tue Oct 31, 2006 5:54 pm

never mind, I got it figured out...i was getting a new set of linking errors and didn't read them closely enough to realize that they were seperate from the ITraingleRenderer2 issues