LI74396: Symbol vector<...>::_Eq() missing with -g

March 2009 Update for XL C/C++ for Linux, V10.1
October 2009 Update for XL C/C++ for Linux, V10.1
June 2011 Update for XL C/C++ for Linux, V10.1
XL C/C++ for Linux Fix Pack 8 (January 2014 Update) for 10.1
August 2010 Update for XL C/C++ for Linux, V10.1
January 2011 Update for XL C/C++ for Linux, V10.1
January 2012 Update for XL C/C++ for Linux, V10.1
July 2012 Update for XL C/C++ for Linux, V10.1

APAR status

• Closed as program error.

Error description

• Shared objects that happened to export std::vector<...>::_Eq()
  no longer export this symbol with newer versions of the <vector>
  header file.
  This can cause programs built against the old shared object to
  fail to start when they are run against the shared object built
  against the new <vector> header file.
  Programs that do not use shared objects, and those that control
  the interface of their shared objects using export lists, are
  not affected by this problem.
  

Local fix

• n/a
  

Problem summary

• Users using implementation-internal members _Eq and/or _Lt
  of class template vector specializations.  They were removed to
  avoid the dependancy on the definitions of operator=() and
  operator<().
  _Eq and _Lt may however be referenced by older object files, and
  the removal may cause linking (static or runtime) to fail with
  unresolved references.
  

Problem conclusion

• The members _Eq and _Lt were placed back, under the macro guard:
  __IBMCPP_COMPAT_VECTOR_COMPARISON_MEMBERS
  
  Thus, in order to get these members, users will have to add:
  #define __IBMCPP_COMPAT_VECTOR_COMPARISON_MEMBERS
  to their source file (before any #include directive to bring in
  <vector> either directly, or indirectly), or add:
  -D__IBMCPP_COMPAT_VECTOR_COMPARISON_MEMBERS
  to their compile line.
  

Temporary fix

Comments

APAR Information

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

  LI74333

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

Fix information

• Fixed component name

  XL C/C++ RHEL52

• Fixed component ID

  5724U8310

Applicable component levels

• RA10 PSN LI74333

     UP06/09/13