Refs #14013. Define preprocessor directive project-wide.

Framework/Geometry/CMakeLists.txt

@@ -398,10 +398,8 @@ endif(UNITY_BUILD)
 
 # ===================== Open Cascade ===================
 if (ENABLE_OPENCASCADE)
-  find_package ( OpenCascade REQUIRED )
   include_directories ( system ${OPENCASCADE_INCLUDE_DIR} )
   set (SRC_FILES ${SRC_FILES} ${OPENCASCADE_SRC} )
-  add_definitions ( -DENABLE_OPENCASCADE )
 endif ()
 
 # A few defines needed for OpenCascade on the Mac

buildconfig/CMake/CommonSetup.cmake

@@ -57,6 +57,11 @@ find_package ( MuParser REQUIRED )
 find_package ( JsonCPP REQUIRED )
 include_directories ( SYSTEM ${JSONCPP_INCLUDE_DIR} )
 
+if (ENABLE_OPENCASCADE)
+  find_package ( OpenCascade REQUIRED )
+  add_definitions ( -DENABLE_OPENCASCADE )
+endif ()
+
 find_package ( Doxygen ) # optional
 
 # Need to change search path to find zlib include on Windows.