[Bug libstdc++/79348] New: abi_check fails on s390x (2 undesignated symbols)

[vogt at linux dot vnet.ibm.com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79348

            Bug ID: 79348
           Summary: abi_check fails  on s390x (2 undesignated symbols)
           Product: gcc
           Version: 7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: libstdc++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: vogt at linux dot vnet.ibm.com
  Target Milestone: ---

2 undesignated symbols  
0 
_ZSt11__once_call 
std::__once_call 
version status: compatible 
GLIBCXX_3.4.11 
type: tls 
type size: 8 
status: undesignated 

1 
_ZSt15__once_callable 
std::__once_callable 
version status: compatible 
GLIBCXX_3.4.11 
type: tls 
type size: 8 
status: undesignated 
...
                ==== libstdc++-v3 check-abi Summary ==== 

# of added symbols:              106 
# of missing symbols:            0 
# of undesignated symbols:       2 
# of incompatible symbols:       78 

using: baseline_symbols.txt 
FAIL: libstdc++-abi/abi_check