With code downloaded via svn this evening (revision 7671), I'm seeing a compilation error for osgDB SharedStateManager.cpp in Win32 Release mode.
Excerpt of error description: C3848: expression having type 'const osgDB::SharedStateManager::CompareStateAttributes' would lose some const-volatile qualifiers in order to call 'bool osgDB::SharedStateManager::CompareStateAttributes::operator ()(const osg::ref_ptr<T> &,const osg::ref_ptr<T> &)' Build environment is: WinXP SP2, MS VS 8.1 SP1, using Microsoft Platform SDK for Windows Server 2003 R2. Full output for osgDB rebuild follows: 1>------ Rebuild All started: Project: osgDB, Configuration: Release Win32 ------ 1>Deleting intermediate and output files for project 'osgDB', configuration 'Release|Win32' 1>Building Custom Rule E:/OpenSceneGraph/src/osgDB/CMakeLists.txt 1>-- searching TIFF -->tiff.h<--><-->E:/3rdparty<-- 1>-- searching FREETYPE -->ft2build.h<--><-->E:/3rdparty<-- 1>-- searching JPEG -->jpeglib.h<--><-->E:/3rdparty<-- 1>-- searching GLUT -->GL/glut.h<--><-->E:/3rdparty<-- 1>-- searching GIFLIB -->gif_lib.h<--><-->E:/3rdparty<-- 1>-- searching ZLIB -->zlib.h<--><-->E:/3rdparty<-- 1>-- searching PNG -->png.h<--><-->E:/3rdparty<-- 1>-- ERROR: wxWidgets was not found. 1>-- Found JPEG: E:/3rdParty/lib/libjpeg.lib 1>-- Found PNG: E:/3rdParty/lib/libpng.lib 1>-- Configuring done 1>-- Generating done 1>-- Build files have been written to: E:/OpenSceneGraph 1>Compiling... 1>WriteFile.cpp 1>E:\OpenSceneGraph\include\osgDB/DatabasePager(337) : warning C4800: 'osg::Texture::TextureObject *' : forcing value to bool 'true' or 'false' (performance warning) 1>Version.cpp 1>SharedStateManager.cpp 1>C:\Program Files\Microsoft Visual Studio 8\VC\include\xtree(1174) : error C3848: expression having type 'const osgDB::SharedStateManager::CompareStateAttributes' would lose some const-volatile qualifiers in order to call 'bool osgDB::SharedStateManager::CompareStateAttributes::operator ()(const osg::ref_ptr<T> &,const osg::ref_ptr<T> &)' 1> with 1> [ 1> T=osg::StateAttribute 1> ] 1> C:\Program Files\Microsoft Visual Studio 8\VC\include\xtree(1169) : while compiling class template member function 'std::_Tree_nod<_Traits>::_Node *std::_Tree<_Traits>::_Lbound(const osg::ref_ptr<T> &) const' 1> with 1> [ 1> _Traits=std::_Tset_traits<osg::ref_ptr<osg::StateAttribute>,osgDB::SharedStateManager::CompareStateAttributes,std::allocator<osg::ref_ptr<osg::StateAttribute>>,false>, 1> T=osg::StateAttribute 1> ] 1> C:\Program Files\Microsoft Visual Studio 8\VC\include\set(69) : see reference to class template instantiation 'std::_Tree<_Traits>' being compiled 1> with 1> [ 1> _Traits=std::_Tset_traits<osg::ref_ptr<osg::StateAttribute>,osgDB::SharedStateManager::CompareStateAttributes,std::allocator<osg::ref_ptr<osg::StateAttribute>>,false> 1> ] 1> E:\OpenSceneGraph\include\osgDB/SharedStateManager(88) : see reference to class template instantiation 'std::set<_Kty,_Pr>' being compiled 1> with 1> [ 1> _Kty=osg::ref_ptr<osg::StateAttribute>, 1> _Pr=osgDB::SharedStateManager::CompareStateAttributes 1> ] 1>Registry.cpp 1>E:\OpenSceneGraph\include\osgDB/DatabasePager(337) : warning C4800: 'osg::Texture::TextureObject *' : forcing value to bool 'true' or 'false' (performance warning) 1>ReaderWriter.cpp 1>E:\OpenSceneGraph\include\osgDB/DatabasePager(337) : warning C4800: 'osg::Texture::TextureObject *' : forcing value to bool 'true' or 'false' (performance warning) 1>ReadFile.cpp 1>E:\OpenSceneGraph\include\osgDB/DatabasePager(337) : warning C4800: 'osg::Texture::TextureObject *' : forcing value to bool 'true' or 'false' (performance warning) 1>Output.cpp 1>E:\OpenSceneGraph\include\osgDB/DatabasePager(337) : warning C4800: 'osg::Texture::TextureObject *' : forcing value to bool 'true' or 'false' (performance warning) 1>Input.cpp 1>E:\OpenSceneGraph\include\osgDB/DatabasePager(337) : warning C4800: 'osg::Texture::TextureObject *' : forcing value to bool 'true' or 'false' (performance warning) 1>ImageOptions.cpp 1>FileUtils.cpp 1>E:\OpenSceneGraph\include\osgDB/DatabasePager(337) : warning C4800: 'osg::Texture::TextureObject *' : forcing value to bool 'true' or 'false' (performance warning) 1>FileNameUtils.cpp 1>E:\OpenSceneGraph\include\osgDB/DatabasePager(337) : warning C4800: 'osg::Texture::TextureObject *' : forcing value to bool 'true' or 'false' (performance warning) 1>FieldReaderIterator.cpp 1>FieldReader.cpp 1>Field.cpp 1>DynamicLibrary.cpp 1>E:\OpenSceneGraph\include\osgDB/DatabasePager(337) : warning C4800: 'osg::Texture::TextureObject *' : forcing value to bool 'true' or 'false' (performance warning) 1>DotOsgWrapper.cpp 1>DatabasePager.cpp 1>E:\OpenSceneGraph\include\osgDB/DatabasePager(337) : warning C4800: 'osg::Texture::TextureObject *' : forcing value to bool 'true' or 'false' (performance warning) 1>Archive.cpp 1>E:\OpenSceneGraph\include\osgDB/DatabasePager(337) : warning C4800: 'osg::Texture::TextureObject *' : forcing value to bool 'true' or 'false' (performance warning) 1>Generating Code... 1>Build log was saved at "file://e:\OpenSceneGraph\src\osgDB\osgDB.dir\Release\BuildLog.htm" 1>osgDB - 1 error(s), 11 warning(s) ========== Rebuild All: 0 succeeded, 1 failed, 0 skipped ==========
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