/sys$common/syshlp/helplib.hlb CC, Language topics, Preprocessor, #module  *Conan The Librarian (sorry for the slow response - running on an old VAX)

  The #module directive is retained for compatibility with VAX C and
  is supported only when running the Compaq C compiler in VAX C mode
  (/STANDARD=VAXC).  See also the ANSI C equivalent #pragma module
  directive.

  The #module directive passes information about an object module to
  the compiler.

  The #module directive can have one of the following forms:

       #module identifier identifier
       #module identifier string

  The first argument of the directive is a Compaq C identifier or
  macro that resolves to an identifier.  It gives the
  system-recognized (for example, internally recognized by the
  debugger and the librarian) name of the module; the object file
  name remains the same.  The second argument specifies the optional
  identification that appears on listings.  This may be either a VAX
  C identifier, a character-string constant with no more than 31
  characters, or a macro that resolves to one of these.

  There can be only one #module directive per compilation.  It can
  appear anywhere before the C language text.