--- openvdb-7.2.1/cmake/FindCppUnit.cmake.orig	2020-06-04 10:29:06.862694800 +0300
+++ openvdb-7.2.1/cmake/FindCppUnit.cmake	2020-06-04 10:29:26.086118700 +0300
@@ -156,7 +156,7 @@
 
 set(_CPPUNIT_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES ${CMAKE_FIND_LIBRARY_SUFFIXES})
 
-if(WIN32)
+if(MSVC)
   if(CPPUNIT_USE_STATIC_LIBS)
     set(CMAKE_FIND_LIBRARY_SUFFIXES ".lib")
   else()