--- CMakeLists.txt.orig	2020-08-13 19:15:58 UTC
+++ CMakeLists.txt
@@ -217,7 +217,7 @@ mark_as_advanced(
 # @note  Blosc version is currently treated as exception which must be adhered
 # to. The minimum version must be at least 1.5.0. Previous versions are incompatible.
 # Later versions (including 1.5.4), can be buggy on certain platforms.
-set(MINIMUM_BLOSC_VERSION 1.5.0)
+set(MINIMUM_BLOSC_VERSION 1.15)
 # @note  ABI always enforced so the correct deprecation messages are available.
 # OPENVDB_USE_DEPRECATED_ABI_<VERSION> should be used to circumvent this
 set(MINIMUM_OPENVDB_ABI_VERSION 5)
@@ -235,9 +235,9 @@ if(NOT DISABLE_DEPENDENCY_VERSION_CHECKS)
   set(MINIMUM_ILMBASE_VERSION 2.2)
   set(MINIMUM_OPENEXR_VERSION 2.2)
   set(MINIMUM_ZLIB_VERSION 1.2.7)
-  set(MINIMUM_TBB_VERSION 2017.0)
+  #set(MINIMUM_TBB_VERSION 2019.0) # bogus check: https://github.com/AcademySoftwareFoundation/openvdb/issues/688
 
-  set(MINIMUM_PYTHON_VERSION 2.7)
+  set(MINIMUM_PYTHON_VERSION ${FREEBSD_PYTHON_VER})
   set(MINIMUM_NUMPY_VERSION 1.12.1)
 
   set(MINIMUM_CPPUNIT_VERSION 1.10)