[squid-dev] bizarre build behaviour from PoolingAllocator on OpenBSD/clang

[Alex Rousskov]

On 8/16/21 7:29 AM, Stuart Henderson wrote:

> -c .../src/log/access_log.cc -fPIC -DPIC -o .libs/access_log.o
> In file included from .../src/log/access_log.cc:12:
> In file included from .../src/AccessLogEntry.h:19:
> In file included from .../src/HttpHeader.h:13:
> In file included from .../src/base/LookupTable.h:15:

> /usr/include/c++/v1/unordered_map:857:5: error: static_assert failed
> due to requirement 'is_same<std::__1::pair<const SBuf, unsigned long
> long>, std::__1::pair<uf, unsigned long long>>::value' "Invalid
> allocator::value_type"

>     static_assert((is_same<value_type, typename allocator_type::value_type>::value),
>     ^              ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Yes, that could be the smoking gun missing from the earlier error log,
thank you, Stuart!

Francesco, can you reproduce the same false is_same<> result using a toy
example? You might not even need Squid-specific types.

If you can reproduce it, is the result valid/expected or is that a clang
bug?

Alex.