LI77133: LINK ERRORS DUE TO MULTIPLE DEFINITIONS

December 2012 Update for XL Fortran for Linux, V14.1
April 2013 Update for XL Fortran for Linux, V14.1

APAR status

• Closed as program error.

Error description

• PROBLEM DESCRIPTION: When trying to link object files produced
  for multiple empty Fortran files or with source containing
  multiple block data program units with the same name, the Linux
  linker complains with duplicate symbol definition error.
  
  USERS AFFECTED: Users on Linux who pre-process Fortran source
  and may end up with empty files or users who use the same name
  for multiple block data program units.
  

Local fix

• N/A
  

Problem summary

• USERS AFFECTED:
  Users on Linux who pre-process Fortran source and may end up
  with empty files or users who use the same name for multiple
  block data program units are affected by this issue.
  
  PROBLEM DESCRIPTION:
  When trying to link object files produced for multiple empty
  Fortran files or with source containing multiple block data
  program units with the same name,
  the Linux linker complains with duplicate symbol definition
  error.
  

Problem conclusion

• The fix involves marking synthesized symbol for empty
  compilation units as weak.
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

  LI77018

• APAR is sysrouted TO one or more of the following:

Fix information

• Fixed component name

  XL FORTRAN LINU

• Fixed component ID

  5725C7500

Applicable component levels

• RE10 PSN LI77018

     UP06/09/13