Try stuff to make unittests pass

Author: aaronj0

Diff for: core/metacling/src/CMakeLists.txt

@@ -119,7 +119,9 @@ ROOT_LINKER_LIBRARY(Cling
 
 # When these two link at the same time, they can exhaust the RAM on many machines, since they both link against llvm.
 add_dependencies(Cling rootcling_stage1)
-add_dependencies(Cling CppInterOpUnitTests)
+if(testing)
+  add_dependencies(Cling CppInterOpUnitTests)
+endif()
 
 if(MSVC)
   set_target_properties(Cling PROPERTIES WINDOWS_EXPORT_ALL_SYMBOLS TRUE)

Diff for: interpreter/CppInterOp/unittests/CMakeLists.txt

@@ -33,6 +33,7 @@ endif()
   add_test(NAME cppinterop-${name} COMMAND ${name})
   set_tests_properties(cppinterop-${name} PROPERTIES
                        TIMEOUT "${TIMEOUT_VALUE}"
+                       ENVIRONMENT "CPLUS_INCLUDE_PATH=${CMAKE_BINARY_DIR}/etc"
                        LABELS
                        DEPENDS)
   # FIXME: Just call gtest_add_tests this function is available.