[Bug lto/81004] [7/8 Regression] linking failed with -flto and static libboost_program_options

[trippels at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81004

--- Comment #11 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
It goes from:

_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED1Ev/37 (__comp_dtor )
@0x7f9a6e65eb80                                                                 
  Type: function definition analyzed alias                                     
                                                                               
                     Visibility: externally_visible prevailing_def public weak
comdat comdat_group:_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED5Ev
one_only visibility_specified            
  Same comdat group as:
_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev/36                    
  Address is taken.                                                             
  References: _ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev/36
(alias)                                                                         
  Referring:
_ZN5boost15program_options17get_single_stringIcEEvSt1AINSt7__cxx1112basic_stringIT_St11char_traitsIS5_ESaIS5_EEEE.isra.0/59
(addr)                                    
  Read from file: /tmp/cc8JHtNO.o                                               
  Availability: available                                                      
                                                                               
                     First run: 0                                              
                                                                               
                                        Function flags:                        
                                                                               
                                                           Called by:          
                                                                               
                                                                             
Calls:                                                                          
_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev/36 (__base_dtor )
@0x7f9a6e65ea10                                                                
                         Type: function definition analyzed                     
  Visibility: externally_visible public weak comdat
comdat_group:_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED5Ev one_only
visibility_specified                           
  Same comdat group as:
_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED1Ev/37                    
  Address is taken.                                                             
  References:                                                                   
  Referring: _ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED1Ev/37
(alias)                                                                         
  Read from file: /tmp/cc8JHtNO.o                                               
  Availability: available                                                       
  First run: 0                                                                  
  Function flags:                                                               
  Called by:                                                                    
  Calls: 

to:
Optimized Symbol table:
_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED1Ev/37 (__comp_dtor )
@0x7f9a6e65eb80                                                                 
  Type: function definition analyzed alias                                      
  Visibility: externally_visible prevailing_def                                 
  Address is taken.                                                             
  References: _ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev/36
(alias)                                                                         
  Referring:
_ZN5boost15program_options17get_single_stringIcEEvSt1AINSt7__cxx1112basic_stringIT_St11char_traitsIS5_ESaIS5_EEEE.isra.0/59
(addr)                                    
  Read from file: /tmp/cc8JHtNO.o                                               
  Availability: available                                                       
  First run: 0                                                                  
  Function flags:                                                               
  Called by:                                                                    
  Calls:                                                                        
_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev/36 (__base_dtor )
@0x7f9a6e65ea10                                                                 
  Type: function definition analyzed                                            
  Visibility: prevailing_def_ironly                                             
  Address is taken.                                                             
  References:                                                                   
  Referring: _ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED1Ev/37
(alias)                                                                         
  Read from file: /tmp/cc8JHtNO.o                                               
  Availability: available                                                      
                                                                               
                     First run: 0                                               
  Function flags: nonfreeing_fn                                                 
  Called by:                                                                    
  Calls