LI81382: XLF ".mod" file timestamp causes much larger rebuilds with incremental builds in CMake

APAR status

• Closed as new function.

Error description

• XL Fortran for Linux, V16.1, even though there are no changes
  in the source file, it compiles the new version of .mod file
  which is identical to the older one, except for the timestamp
  which is embedded in.mod file
  
  
  ================================================================
  
  ====TESTCASE:
  
   Test case:
  $ cat x.f
        module m
          integer i
        end module
  $
  
  rm -f m.mod
  xlf x.f -c -qnotimestamps
  mv m.mod m.mod.1
  xlf x.f -c -qnotimestamps
  diff -q m.mod.1 m.mod
  diff should return rc 0 indicating the two files are identical.
  

Local fix

• N/A
  

Problem summary

• USERS AFFECTED:
  Users of XL Fortran are affected by this issue
  
  PROBLEM DESCRIPTION:
  Module and submodule files contain time stamp information about
  the build time, even when -qnotimestamps is specified.
  

Problem conclusion

• CONCLUSION:
  The issue has been resolved
  

Temporary fix

Comments

APAR Information

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

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

  IJ24709

Fix information

• Fixed component name

  XL FORTRAN LINU

• Fixed component ID

  5725C7510

Applicable component levels