Detailed system requirements
Members IGYWDOPT and IGYWUOPT are missing from DSNAME=IGY.SIGYSAMP.
Page 3 of SC14-7380-00 Enterprise COBOL Customization Guide document the use of these members to customize compile-time option defaults.
If the members are missing, apply the solution for APAR PM96176. As of September 2013, the APAR is still unresolved. Until that APAR closes, you may use your old IGYWDOPT from your Enterprise COBOL version 4.2.
Be sure to change any references in your 4.2 IGYWDOPT to point to your current 5.1. One example to change would be
//SYSLIB DD DSN=IGY.V4R2M0.SIGYMAC,
Change it and others to, perhaps, IGY.V5R1M0.SIGYMAC
If you never installed 4.2, then here follow IGYWDOPT and IGYWUOPT for you to use. These are the members from version 4.2. As above, change internal references from V4R2 to V5R1.