Hi Robert, Thanks for that. I tried with the latest code from SVN and a fresh build directory and I still got the same two unresolved symbols.
I'm off on holiday now so I won't have access to the MacOSX machine at work until I get back in January. I didn't realise you were busy doing the 2.7.8 release. If you do get a spare moment at some point then IMO the blog entry I linked to in my first post is quite informative. Since I'm new to the Mac I have no idea if it's a really bad thing that the 10.4 SDK libs on my system have different symbols from the 10.4 system libs. It does sound dodgy to me and even though I can tweak things to get osgText to build I wouldn't be surprised if it doesn't run (I'm actually not bothered as we don't use that particular library). Oh well, thanks anyway, and have a good christmas and maybe we can resume this in January. Hopefully in the meantime someone with good Mac knowledge can maybe wade in to clarify it all :) Paul --- On Fri, 19/12/08, Robert Osfield <robert.osfi...@gmail.com> wrote: > From: Robert Osfield <robert.osfi...@gmail.com> > Subject: Re: [osg-users] Build error on MAc OSX 10.4 and OSG 2.7.4 > To: osg_u...@yahoo.co.uk, "OpenSceneGraph Users" > <osg-users@lists.openscenegraph.org> > Date: Friday, 19 December, 2008, 4:14 PM > Hi Paul, > > When I was removing the MATH_LIBRARY entry from the > src/osgText/CMakeLists.txt (the one that I had added to > see it would > help you) I noticed that FreeType was listed but this > isn't needed by > osgText, just by the freetype plugin so I have removed this > as it's > not needed and potentially could extra complications that > it needn't > have. Could you try svn/trunk to see if it makes any > difference. > I've attached the cleaned up osgText/CMakeLists.txt in > case you just > want to try this on its own. > > Robert. > > > On Fri, Dec 19, 2008 at 3:53 PM, Paul Fotheringham > <osg_u...@yahoo.co.uk> wrote: > > Hi Robert, > > > > If I set MATH_LIBRARY to "" then it builds > fine (with nothing on any on the link lines). > > > > Also, if I set it to > /Developer/SDKs/MacOSX10.4u.sdk/usr/lib/libm.dylib it also > works fine (with > /Developer/SDKs/MacOSX10.4u.sdk/usr/lib/libm.dylib on each > link line). > > > > I must admit I'm puzzled as to why the string > associated with MATH_LIBRARY is appearing on the link lines > for all the libraries and not just libosg itself as none of > the CMakeLists.txt files other than the one in the osg > folder refer to it. Are the other libraries somehow > inheriting this setting from the cmake settings in libosg? > > > > Paul > > > > --- On Fri, 19/12/08, Robert Osfield > <robert.osfi...@gmail.com> wrote: > > > >> From: Robert Osfield > <robert.osfi...@gmail.com> > >> Subject: Re: [osg-users] Build error on MAc OSX > 10.4 and OSG 2.7.4 > >> To: "OpenSceneGraph Users" > <osg-users@lists.openscenegraph.org> > >> Date: Friday, 19 December, 2008, 11:15 AM > >> Hi Paul, > >> > >> What happens if, using ccamke, you manually set > the > >> MATH_LIBRARY to "" > >> or to your frameworks version? > >> > >> Robert. > >> > >> On Fri, Dec 19, 2008 at 11:06 AM, Paul > Fotheringham > >> <osg_u...@yahoo.co.uk> wrote: > >> > --- On Fri, 19/12/08, Robert Osfield > >> <robert.osfi...@gmail.com> wrote: > >> > > >> >> From: Robert Osfield > >> <robert.osfi...@gmail.com> > >> >> Subject: Re: [osg-users] Build error on > MAc OSX > >> 10.4 and OSG 2.7.4 > >> >> To: osg_u...@yahoo.co.uk, > "OpenSceneGraph > >> Users" > <osg-users@lists.openscenegraph.org> > >> >> Date: Friday, 19 December, 2008, 8:46 AM > >> >> Hi Paul, > >> >> > >> >> On Thu, Dec 18, 2008 at 6:37 PM, Paul > Fotheringham > >> >> <osg_u...@yahoo.co.uk> wrote: > >> >> > Hi Robert, > >> >> > > >> >> > Thanks for looking into this. > >> >> > > >> >> > --- On Thu, 18/12/08, Robert Osfield > >> >> <robert.osfi...@gmail.com> wrote: > >> >> > <snip> > >> >> >> The core OSG library does link > against > >> the > >> >> MATH_LIBRARY, > >> >> >> but the other > >> >> >> non of the other core libraries > do. > >> >> > > >> >> > Apparently not on MacOSX using cmake > :) > >> >> > >> >> Please read what I've already > written. > >> I've been > >> >> using Cmake under > >> >> OSX as others have been as well, without > problems. > >> > > >> > I've already explained not once, but > twice now, > >> why that is. > >> > > >> >> > Take a look at > >> >> > > >> >> > > src/osgText/CMakeFiles/osgText.dir/link.txt > >> >> > > >> >> > without the change you just made. In > fact > >> take a look > >> >> at any of the link.txt files for each OSG > library. > >> Thay all > >> >> have /usr/lib/libm.dylib in there. > >> >> > > >> >> >> I've added a entry of > >> >> >> MATH_LIBRARY into the linking of > osgText. > >> Could > >> >> you do an > >> >> >> svn update > >> >> >> and see if the error is fixed? > >> >> > > >> >> > I got the svn version and no it > doesn't > >> fix it. > >> >> All it does is move the > >> >> > > >> >> > /usr/lib/libm.dylib > >> >> > > >> >> > reference on the link line to a > different > >> place! > >> >> > > >> >> >> The fact you've got errors > but others > >> under > >> >> OSX > >> >> >> haven't reported this > >> >> >> (including myself) suggests that > must be > >> something > >> >> else > >> >> >> going w.r.t > >> >> >> gcc/SDK's you are using on > your > >> machine. > >> >> > > >> >> > I'm sorry I haven't > explained this > >> well > >> >> enough. The goal here is to *not* have > any > >> explicit > >> >> reference to libm.dylib on the link line. > >> >> > > >> >> > The symbols reside in the SDK > version of the > >> library > >> >> at > >> >> > > >> >> > > >> /Developer/SDKs/MacOSX10.4u.sdk/usr/lib/libm.dylib > >> >> > > >> >> > and *not* necessarily at > >> >> > > >> >> > /usr/lib/libm.dylib > >> >> > > >> >> > which is what the MATH_LIBRARY is > set to. > >> This is fine > >> >> for UNIX but not Mac as it should be the > former > >> that is used > >> >> for a consistent build (if there are Mac > >> developers out > >> >> there who disagree please correct me - > I'm new > >> to this). > >> >> > > >> >> > By omitting the explicit reference > to > >> libm.dylib the > >> >> Mac build system takes care of this > automatically > >> and gets > >> >> the symbols from the SDK version of the > library. > >> >> > > >> >> > Users who are not seeing this > problem have > >> all the > >> >> symbols they require in > /usr/lib/libm.dylib and > >> are, as I > >> >> understand it, lucky ;) > >> >> > >> >> I'll will check what value is used on > the OSX > >> box that > >> >> I was remote > >> >> compiling on. > >> >> > >> >> Could you please remove the MATH_LIBRARY > entry in > >> the > >> >> src/osg/CMakeLists.txt and > >> src/osgText/CMakeLists.txt to > >> >> test your > >> >> theory about not needing it. > >> > > >> > I agree that only libosg needs it. osgText > only needs > >> it indirectly. If I remove the MATH_LIBRARY entry > from > >> src/osgText/CMakeLists.txt then > /usr/lib/libm.dylib still > >> apears in the link line. To be more precise, it > appears in > >> src/osgText/CMakeFiles/osgDB.dir/link.txt which, > with my > >> limited knowledge of cmake, is what I assume it > uses to > >> perform the link. > >> > > >> > As I implied in my first post, all these > references to > >> /usr/lib/libm.dylib on the link lines seem to come > from the > >> FIND_LIBRARY(MATH_LIBRARY m) line in the top-level > >> CMakeLists.txt as they all go away if I remove > that. > >> > > >> >> > >> >> Robert. > >> > > >> > Paul > >> > > >> > > >> > > >> > > _______________________________________________ > >> > osg-users mailing list > >> > osg-users@lists.openscenegraph.org > >> > > >> > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > >> > > >> _______________________________________________ > >> osg-users mailing list > >> osg-users@lists.openscenegraph.org > >> > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > > > > > > > > _______________________________________________ > > osg-users mailing list > > osg-users@lists.openscenegraph.org > > > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > > _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
