clang 3.8/3.7 does not link with crypto++ ( CryptoPP::DEFAULT_CHANNEL )

[Quuxplusone]

Bugzilla Link	PR27006
Status	NEW
Importance	P normal
Reported by	Gaetano Mendola (mendola@gmail.com)
Reported on	2016-03-20 15:52:58 -0700
Last modified on	2016-03-21 15:47:05 -0700
Version	3.8
Hardware	PC Linux
CC	hfinkel@anl.gov, llvm-bugs@lists.llvm.org
Fixed by commit(s)
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The following snippet:

#include <cryptopp/hex.h>
int main() {
  CryptoPP::HexDecoder myHexDecoder;
}

does not link with clang++-3.8/clang++3.7 while it links just fine with gcc5.3.1

$ apt-show-versions libcrypto++-dev
libcrypto++-dev:amd64/xenial 5.6.1-9 uptodate

The error:
$ clang++-3.8 main.cpp -lcrypto++
/tmp/main-1ac893.o: In function
`CryptoPP::Unflushable<CryptoPP::Filter>::Flush(bool, int, bool)':
main.cpp:(.text._ZN8CryptoPP11UnflushableINS_6FilterEE5FlushEbib[_ZN8CryptoPP11UnflushableINS_6FilterEE5FlushEbib]+0xf):
undefined reference to `CryptoPP::DEFAULT_CHANNEL'
clang: error: linker command failed with exit code 1 (use -v to see invocation)

[Quuxplusone]

I found out that in Ubuntu 16.04 they compiled libcrpyto with thew new ABI:

$ nm /usr/lib/libcryptopp.a | c++filt | grep DEFAULT_CHANNEL
U CryptoPP::DEFAULT_CHANNEL[abi:cxx11]

That's why the linker fails to find the symbol