https://github.com/bitcoin/bitcoin/blob/68f3c7eb080e461cfeac37f8db7034fe507241d0/src/prevector.h#L152-L158

I'm opening an issue as its fix is too tiny to become a pull request.

Can be solved by renaming the struct to
```c
     struct indirect_contents { 
         size_type capacity; 
         char* indirect; 
     }; 
```
return false;
        }
        
        to_mark_failed->nStatus |= BLOCK_FAILED_VALID;
        setDirtyBlockIndex.insert(to_mark_failed);
        setBlockIndexCandidates.erase(to_mark_failed);
        m_blockman.m_failed_blocks.insert(to_mark_failed);
        
        
        
        
        
        
        
        BlockMap::iterator it = m_blockman.m_block_index.begin();
        while (it != m_blockman.m_block_index.end()) {
            if (it->second->IsValid(BLOCK_VALID_TRANSACTIONS) && it->second->HaveTxsDownloaded() && !setBlockIndexCandidates.value_comp()(it->second, m_chain.Tip())) {
                setBlockIndexCandidates.insert(it->second);
            }
            it++;
        }
        InvalidChainFound(to_mark_failed);
    }
    
    if (pindex_was_in_chain) {
        uiInterface.NotifyBlockTip(IsInitialBlockDownload(), to_mark_failed->pprev);
    }
    return true;
}
bool InvalidateBlock(BlockValidationState& state, const CChainParams& chainparams, CBlockIndex *pindex) {