Linux Build error [solved]

hi,

I was trying to build the last CVS version of PagingLandscape and I got this error message:


g++ -DHAVE_CONFIG_H -I. -I. -I../../.. -I../../../PlugIns/PagingLandScape2/include -DEXT_HASH -I/usr/include/OGRE -g -O2 -MT OgrePagingLandScapeAxisAlignedBoxSceneQuery.lo -MD -MP -MF .deps/OgrePagingLandScapeAxisAlignedBoxSceneQuery.Tpo -c OgrePagingLandScapeAxisAlignedBoxSceneQuery.cpp -fPIC -DPIC -o .libs/OgrePagingLandScapeAxisAlignedBoxSceneQuery.o
OgrePagingLandScapeAxisAlignedBoxSceneQuery.cpp: In member function 'bool<unnamed>::LodTracker::GetWorldVertex(int, int, Ogre::Vector3&)':
OgrePagingLandScapeAxisAlignedBoxSceneQuery.cpp:272: error: invalid use of undefined type 'const struct Ogre::PagingLandScapePage'
../../../PlugIns/PagingLandScape2/include/OgrePagingLandScapePrerequisites.h:124: error: forward declaration of 'const struct Ogre::PagingLandScapePage'
OgrePagingLandScapeAxisAlignedBoxSceneQuery.cpp:277: error: invalid use of undefined type 'const struct Ogre::PagingLandScapeData2D'
../../../PlugIns/PagingLandScape2/include/OgrePagingLandScapePrerequisites.h:179: error: forward declaration of 'const struct Ogre::PagingLandScapeData2D'
OgrePagingLandScapeAxisAlignedBoxSceneQuery.cpp:278: error: invalid use of undefined type 'const struct Ogre::PagingLandScapePage'
../../../PlugIns/PagingLandScape2/include/OgrePagingLandScapePrerequisites.h:124: error: forward declaration of 'const struct Ogre::PagingLandScapePage'
OgrePagingLandScapeAxisAlignedBoxSceneQuery.cpp: In member function 'void<unnamed>::LodTracker::SetPage(const Ogre::PagingLandScapePage*)':
OgrePagingLandScapeAxisAlignedBoxSceneQuery.cpp:289: error: invalid use of undefined type 'const struct Ogre::PagingLandScapePage'
../../../PlugIns/PagingLandScape2/include/OgrePagingLandScapePrerequisites.h:124: error: forward declaration of 'const struct Ogre::PagingLandScapePage'
OgrePagingLandScapeAxisAlignedBoxSceneQuery.cpp:291: error: invalid use of undefined type 'const struct Ogre::PagingLandScapePage'
../../../PlugIns/PagingLandScape2/include/OgrePagingLandScapePrerequisites.h:124: error: forward declaration of 'const struct Ogre::PagingLandScapePage'
OgrePagingLandScapeAxisAlignedBoxSceneQuery.cpp: In member function 'void<unnamed>::LodTracker::SetPage(int, int)':
OgrePagingLandScapeAxisAlignedBoxSceneQuery.cpp:299: error: invalid use of undefined type 'struct Ogre::PagingLandScapePageManager'
../../../PlugIns/PagingLandScape2/include/OgrePagingLandScapePrerequisites.h:126: error: forward declaration of 'struct Ogre::PagingLandScapePageManager'
OgrePagingLandScapeAxisAlignedBoxSceneQuery.cpp:300: error: invalid use of undefined type 'const struct Ogre::PagingLandScapePage'
../../../PlugIns/PagingLandScape2/include/OgrePagingLandScapePrerequisites.h:124: error: forward declaration of 'const struct Ogre::PagingLandScapePage'
OgrePagingLandScapeAxisAlignedBoxSceneQuery.cpp: In member function 'void<unnamed>::LodTracker::UpdateTile(int, int)':
OgrePagingLandScapeAxisAlignedBoxSceneQuery.cpp:311: error: invalid use of undefined type 'const struct Ogre::PagingLandScapePage'
../../../PlugIns/PagingLandScape2/include/OgrePagingLandScapePrerequisites.h:124: error: forward declaration of 'const struct Ogre::PagingLandScapePage'
OgrePagingLandScapeAxisAlignedBoxSceneQuery.cpp:315: error: invalid use of undefined type 'struct Ogre::PagingLandScapeTile'
../../../PlugIns/PagingLandScape2/include/OgrePagingLandScapePrerequisites.h:155: error: forward declaration of 'struct Ogre::PagingLandScapeTile'
OgrePagingLandScapeAxisAlignedBoxSceneQuery.cpp:315: error: invalid use of undefined type 'struct Ogre::PagingLandScapeTile'
../../../PlugIns/PagingLandScape2/include/OgrePagingLandScapePrerequisites.h:155: error: forward declaration of 'struct Ogre::PagingLandScapeTile'
OgrePagingLandScapeAxisAlignedBoxSceneQuery.cpp:316: error: invalid use of undefined type 'struct Ogre::PagingLandScapeTile'
../../../PlugIns/PagingLandScape2/include/OgrePagingLandScapePrerequisites.h:155: error: forward declaration of 'struct Ogre::PagingLandScapeTile'
OgrePagingLandScapeAxisAlignedBoxSceneQuery.cpp: In member function 'virtual void Ogre::PagingLandScapeAxisAlignedBoxSceneQuery::execute(Ogre::SceneQueryListener*)':
OgrePagingLandScapeAxisAlignedBoxSceneQuery.cpp:617: warning: passing 'const Ogre::Real' for argument 2 to '<unnamed>::LodTracker::LodTracker(Ogre::Vector3, int, int, Ogre::uint, Ogre::uint, Ogre::uint, Ogre::PagingLandScapePageManager*, Ogre::PagingLandScapeData2DManager*)'
OgrePagingLandScapeAxisAlignedBoxSceneQuery.cpp:617: warning: passing 'const Ogre::Real' for argument 3 to '<unnamed>::LodTracker::LodTracker(Ogre::Vector3, int, int, Ogre::uint, Ogre::uint, Ogre::uint, Ogre::PagingLandScapePageManager*, Ogre::PagingLandScapeData2DManager*)'
make[4]: *** [OgrePagingLandScapeAxisAlignedBoxSceneQuery.lo] Error 1


I'm using Ogre 1.2.4 and GCC 4.1.1

Sorry, using precompiled headers here make incorrect headers for platform not supporting those...

Add

#include "OgrePagingLandScapeTile.h"
#include "OgrePagingLandScapePage.h"
#include "OgrePagingLandScapePageManager.h"

at end of header includes of the OgrePagingLandScapeAxisAlignedBoxSceneQuery.cpp file.

updated in CVS.

ok, thanks that's it, but you need to add one last header to that file OgrePagingLandScapeAxisAlignedBoxSceneQuery.cpp

#include "OgrePagingLandScapeData2D.h"


I'll add that asap.
Btw, I really have to find how to enable precompiled headers under linux, that would speed up build overthere too, I guess. under WIN32, that's an impressive time boost.

well, I can't help you there, I never used precompiled headers on linux, neither on windows...

I'm trying to build the new cvs version of paging landscape to use this new Decals thing, but I'm getting this new error...

*** Warning: Linking the executable PagingLandScape2 against the loadable module
*** Plugin_PagingLandScape2.so is not portable!
g++ -g -O2 -o .libs/PagingLandScape2 PagingLandScape.o ../../../PlugIns/PagingLandScape2/src/.libs/Plugin_PagingLandScape2.so /usr/lib/libOgreMain.so /usr/lib/libfreetype.so /usr/lib/libzzip.so -lCg -L/var/tmp/portage/devil-1.6.7-r1/work/DevIL-1.6.7/src-IL/src -lpthread /usr/lib/libILU.so /usr/lib/libIL.so /usr/lib/libpng12.so /usr/lib/libjpeg.so -lz -lm -ldl -Wl,--rpath -Wl,/usr/lib/OGRE
../../../PlugIns/PagingLandScape2/src/.libs/Plugin_PagingLandScape2.so: undefined reference to `vtable for Ogre::PagingLandScapeMeshDecalFactory'
collect2: ld returned 1 exit status


any idea?

The undefined vtable reference usually means there is a virtual function declared for a class but no implemented. Just do a quick comparison of the header and cpp files.

Precompilied headers for gcc and this nice article on using them you have probably already read.

ok, I just compared the files where the PagingLandScapeMeshDecalFactory class is defined, no problems found. About the precompiled headers, what I understood reading those docs is that I'm building this code using the precompiled headers, If the programer uses them, I must be using them too. I tryed to undefine the PRECOMPILED_HEADERS define and nothing works then.

So I'm kind of lost right now...

Is OgrePagingLandScapeMeshDecal.o actually being linked into the .so file? I'm not running linux here.

Ahh, looking at the Makefile.am in the src dir, I didn't not update this with my patch. I'll submit another patch, but in the meantime, just add OgrePagingLandScapeMeshDecal.cpp to the list of sources.

Apologies!

sklug

that's it...