Update to 6.1.0

Fix cmake build

openvdb.spec

@@ -108,16 +108,20 @@ mkdir build
 %build
 pushd build
 export CXXFLAGS="%{optflags} -Wl,--as-needed"
+
+# Versioning on ilmbase is broken, using workaround
+# https://www.openvdb.org/documentation/doxygen/build.html#buildTroubleshooting
 %cmake \
     -DBLOSC_LOCATION=%{_prefix} \
     -DCMAKE_EXE_LINKER_FLAGS="%{optflags} -fPIE" \
     -DCPPUNIT_LOCATION=%{_prefix} \
+    -DDISABLE_DEPENDENCY_VERSION_CHECKS=ON \
     -DGLEW_LOCATION=%{_prefix} \
     -DGLFW3_LOCATION=%{_prefix} \
-    -DILMBASE_NAMESPACE_VERSIONING=ON \
+    -DILMBASE_NAMESPACE_VERSIONING=OFF \
     -DILMBASE_LOCATION=%{_prefix} \
     -DOPENEXR_LOCATION=%{_prefix} \
-    -DOPENEXR_NAMESPACE_VERSIONING=ON \
+    -DOPENEXR_NAMESPACE_VERSIONING=OFF \
     -DOPENVDB_ENABLE_RPATH=OFF \
     -DOPENVDB_BUILD_UNITTESTS=OFF \
     -DPYTHON_VERSION=%{python_version} \
@@ -125,8 +129,8 @@ export CXXFLAGS="%{optflags} -Wl,--as-needed"
     -DTBB_LOCATION=%{_prefix} \
     -DUSE_GLFW3=True \
   ..
-popd
 %make_build
+popd
 
 # Build docs with previously saved Makefile
 pushd %{name}