Library /sys$common/syshlp/basichelp.hlb Compile time errors, COMMAPNEQ  *Conan The Librarian (sorry for the slow response - running on an old VAX)

  WARNING - A MAP or COMMON with the same name exists in more  than  one
  program  module,  but the size of the areas differs.  Make the size of
  the COMMON or MAP areas equal in size in all modules.