As discussed on the opensim-dev mailing list, this is to avoid a demonstrated ODE collider segfault when stress-testing a simulator running more than one region using the bundled pCampbot.exe
As before, the ODE revision used is r1755 - only the collider has changed.
Tests so far reveal little performance change.
However, if noticeable issues do arise, please report on mantis and/or the opensim-dev mailing list.
The previous libraries are temporarily in bin/Physics-previous-ode-libs
These can be copied back to bin if one wants to compare behaviour with the previous libraries.
This brings it into line with the Windows and Linux libraries.
This is a universal dylib with x86_64, i386 and ppc parts. However, even on a 64 bit Intel machine Mono can only P/INVOKE the i386 version right now. ppc is untested.
The configuration used to compile was
CFLAGS="-g -O2 -isysroot /Developer/SDKs/MacOSX10.6.sdk -arch i386 -arch x86_64 -arch ppc" CXXFLAGS="-g -O2 -isysroot /Developer/SDKs/MacOSX10.6.sdk -arch i386 -arch x86_64 -arch ppc" LDFLAGS="-arch i386 -arch x86_64 -arch ppc" ./configure --enable-old-trimesh --disable-asserts --enable-shared --disable-dependency-tracking --disable-demos --without-x
--disable-demos --without-x is required to build ODE on Mac OS X
CFLAGS, CXXFLAGS and --disable-dependency-tracking are necessary to build the universal dylib (some compilation lines use CFLAGS instead of CXXFLAGS)
The other settings are tweaks for using ODE with OpenSim
Justin Clark-Casey (justincc)