message: Fix borked logic for testing ADIOS1 env vars
diff: @@ -107,7 +107,7 @@ set(adios1_config_hints)
  foreach(PREFIX_VAR IN ITEMS ADIOS1_ROOT ADIOS1_DIR INSTALL_PREFIX)
  if(${PREFIX_VAR})
  list(APPEND adios1_config_hints "${${PREFIX_VAR}}/bin")
  - elseif("$ENV{${PREFIX_VAR}}")
  + elseif(NOT ("$ENV{${PREFIX_VAR}}" STREQUAL ""))
  list(APPEND adios1_config_hints "$ENV{${PREFIX_VAR}}/bin")
  endif()
  endforeach()
  