VMS Help CC, Messages, OPTIMIZEPOP  *Conan The Librarian (sorry for the slow response - running on an old VAX)

 Message        This "restore" has underflowed the pragma optimize
                stack.  No corresponding "save" was found.

 Description    The optimize stack, managed by the #pragma optimize
                and #pragma environment directives, contains more
                restores than saves.  This could signify a coding or
                logic error in the program.

 User Action    Make sure each restore has a corresponding save.