LI76789: ERROR MSG WITH LIMITS HEADER AND XOPEN_SOURCE

XL C/C++ for Linux Fix Pack 9 (August 2013 Update) for 11.1
June 2012 Update for XL C/C++ for Linux, V11.1
October 2012 Update for XL C/C++ for Linux, V11.1
XL C/C++ for Linux Fix Pack 8 (June 2013 Update) for 11.1

APAR status

• Closed as program error.

Error description

• Consider the following C++ source test.cpp:
  
  $ cat test.cpp
  #include <limits>
  int main(void) { return 0; }
  
  Compiled as is, it is fine:
  $ xlC -c test.cpp
  $
  
  With _XOPEN_SOURCE defined to 600, compilation fails:
  
  $xlC -c test.cpp -D_XOPEN_SOURCE=600
  "/usr/vacpp/include/limits", line 464.26: 1540-0274 (S) The
  name lookup for "LONGLONG_MIN" did not find a declaration.
  "/usr/vacpp/include/limits", line 466.26: 1540-0274 (S) The
  name lookup for "LONGLONG_MAX" did not find a declaration.
  "/usr/vacpp/include/limits", line 493.26: 1540-0274 (S) The
  name lookup for "ULONGLONG_MAX" did not find a declaration.
  
  Same is the case when defining _XOPEN_SOURCE to 500.
  

Local fix

• The additional definition of _ALL_SOURCE fixes things:
  
  $ xlC -c test.cpp -D_XOPEN_SOURCE=600 -D_ALL_SOURCE
  $
  

Problem summary

• USERS AFFECTED:
  Clients who have applications which include limits header and
  are compiled with _XOPEN_SOURCE definition can be affected by
  this issue.
  
  PROBLEM DESCRIPTION:
  Clients with applications that include limits header and with
  _XOPEN_SOURCE defined to 600 option, the compilation fails.
  The error message shows LONGLONG_MIN, LONGLONG_MAX and
  ULONGLONG_MAX are not defined.
  

Problem conclusion

• We wanted to use [U]LLONG_* if C99 was on and [U]LONGLONG_* if
  ALL SOURCE was on.
  Compiler should not provide<long long> and <unsigned long long>
  specialisation when _XOPEN_SOURCE defined to 600 (or any other
  than _ALL_SOURCE).
  

Temporary fix

Comments

APAR Information

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

  IV16544

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

Fix information

• Fixed component name

  XL C/C++ FOR LI

• Fixed component ID

  5724X1400

Applicable component levels

• RB10 PSN IV16544

     UP06/09/13