Fix MacOS Static build without FFI

Author: eisenhauer

thirdparty/EVPath/EVPath/EVPathConfigCommon.cmake.in

@@ -4,7 +4,9 @@ find_dependency(atl @atl_VERSION@)
 find_dependency(ffs @ffs_VERSION@)
 
 if(NOT @BUILD_SHARED_LIBS@)
-  find_dependency(dill @dill_VERSION@)
+  if(@HAVE_COD_H@)
+    find_dependency(dill @dill_VERSION@)
+  endif()
 
   if(@NVML_FOUND@)
     find_dependency(NVML)

thirdparty/ffs/CMakeLists.txt

@@ -4,7 +4,11 @@ set(BUILD_TESTING OFF)
 set(CMAKE_INSTALL_CMAKEDIR "${CMAKE_INSTALL_CMAKEDIR}/thirdparty")
 
 set(FFS_USE_ATL ON CACHE INTERNAL "")
-set(FFS_USE_DILL ON CACHE INTERNAL "")
+if(TARGET dill::dill)
+  set(FFS_USE_DILL ON CACHE INTERNAL "")
+else()
+  set(FFS_USE_DILL OFF CACHE INTERNAL "")
+endif()      
 set(FFS_LIBRARIES_ONLY ON CACHE INTERNAL "")
 set(FFS_QUIET ON CACHE INTERNAL "")
 set(FFS_LIBRARY_PREFIX adios2${ADIOS2_LIBRARY_SUFFIX}_ CACHE INTERNAL "")