PM81701: Clearmake in GNU compatibility mode may not properly handle nested if/ifeq statements.

APAR status

• Closed as suggestion for future release.

Error description

• When attemting to build software using the IBM Rational
  ClearCase 'clearmake' tool in GNU make emulation mode, complex
  conditional statements using the 'else ifeq' construct may not
  execute the correct makefile lines.
  
  Example makefile:
  --------------------
  NAME=abc
  
  ifeq ($(NAME),abc1)
  $(warning abc1)
  else ifeq ($(NAME),abc2)
  $(warning abc2)
  else ifeq ($(NAME),ABC)
  $(warning ABC)
  else ifeq ($(NAME),abc)
  $(warning abc)
  else
  $(warning unrecognised)
  endif
  --------------------
  
  In this makefile, GNU make 3.81 will report:
  makefile.conditionals:10: abc
  
  clearmake, however, will return
  makefile.conditionals:6: abc2
  
  in ANY condition where the NAME macro is not equal to 'abc1'
  
  There is no workaround at this time.
  

Local fix

Problem summary

Problem conclusion

Temporary fix

Comments

• Thank you for your suggestion. IBM does not currently track
  enhancement requests for Rational products through APARs,
  but your request has been recorded in our internal
  enhancement tracking system.
  

APAR Information

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

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

Fix information

Applicable component levels