次のCrypto++(暗号化スキームのC ++クラスライブラリ)の例を取得して、clang++を使用するiMacで動作させようとしています。
例
SHA256 hash;
byte digest[ SHA256::DIGESTSIZE ];
hash.CalculateDigest( digest, (byte*) &value[ 0 ], value.size( ) );
HexEncoder encoder;
string result = String::empty;
encoder.Attach( new StringSink( result ) );
encoder.Put( digest, sizeof( digest ) );
encoder.MessageEnd( );
ビルドコマンド
Apple clang version 2.1 (tags/Apple/clang-163.7.1) (based on LLVM 3.0svn)
Target: x86_64-apple-darwin11.4.0
Thread model: posix
"/usr/bin/clang" -cc1 -triple x86_64-apple-macosx10.7.4 -emit-obj -mrelax-all -disable-free -disable-llvm-verifier -main-file-name checksum_impl.cpp -pic-level 2 -mdisable-fp-elim -relaxed-aliasing -masm-verbose -munwind-tables -target-cpu core2 -target-linker-version 123.2.1 -v -resource-dir /usr/bin/../lib/clang/2.1 -D framework_EXPORTS -I /Users/Ben/Dropbox/appon/build/../source -nostdinc++ -cxx-isystem /usr/include/c++/v1 -Wall -Wextra -Weffc++ -pedantic -std=c++0x -fdeprecated-macro -ferror-limit 19 -fmessage-length 175 -stack-protector 1 -fblocks -fcxx-exceptions -fexceptions -fdiagnostics-show-option -fcolor-diagnostics -o CMakeFiles/framework.dir/Users/Ben/Dropbox/source/example.cpp.o -x c++ /Users/Ben/Dropbox/source/example.cpp
clang -cc1 version 2.1 based upon llvm 3.0svn hosted on x86_64-apple-darwin11.4.0
#include "..." search starts here:
#include <...> search starts here:
/Users/Ben/Dropbox/build/../source
/usr/include/c++/v1
/usr/local/include
/usr/bin/../lib/clang/2.1/include
/usr/include
/System/Library/Frameworks (framework directory)
/Library/Frameworks (framework directory)
End of search list.
リンカー出力
clang: warning: argument unused during compilation: '-std=c++0x'
Undefined symbols for architecture x86_64:
"CryptoPP::Filter::TransferTo2(CryptoPP::BufferedTransformation&, unsigned long long&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, bool)", referenced from:
vtable for CryptoPP::SimpleProxyFilter in checksum_impl.cpp.o
vtable for CryptoPP::Bufferless<CryptoPP::Filter> in checksum_impl.cpp.o
vtable for CryptoPP::Unflushable<CryptoPP::Filter> in checksum_impl.cpp.o
"CryptoPP::Filter::CopyRangeTo2(CryptoPP::BufferedTransformation&, unsigned long long&, unsigned long long, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, bool) const", referenced from:
vtable for CryptoPP::SimpleProxyFilter in checksum_impl.cpp.o
vtable for CryptoPP::Bufferless<CryptoPP::Filter> in checksum_impl.cpp.o
vtable for CryptoPP::Unflushable<CryptoPP::Filter> in checksum_impl.cpp.o
"CryptoPP::BufferedTransformation::ChannelCreatePutSpace(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, unsigned long&)", referenced from:
vtable for CryptoPP::SimpleProxyFilter in checksum_impl.cpp.o
vtable for CryptoPP::Bufferless<CryptoPP::Filter> in checksum_impl.cpp.o
vtable for CryptoPP::Unflushable<CryptoPP::Filter> in checksum_impl.cpp.o
"CryptoPP::BufferedTransformation::ChannelPut2(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, unsigned char const*, unsigned long, int, bool)", referenced from:
vtable for CryptoPP::SimpleProxyFilter in checksum_impl.cpp.o
vtable for CryptoPP::Bufferless<CryptoPP::Filter> in checksum_impl.cpp.o
vtable for CryptoPP::Unflushable<CryptoPP::Filter> in checksum_impl.cpp.o
"CryptoPP::BufferedTransformation::ChannelPutModifiable2(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, unsigned char*, unsigned long, int, bool)", referenced from:
vtable for CryptoPP::SimpleProxyFilter in checksum_impl.cpp.o
vtable for CryptoPP::Bufferless<CryptoPP::Filter> in checksum_impl.cpp.o
vtable for CryptoPP::Unflushable<CryptoPP::Filter> in checksum_impl.cpp.o
"CryptoPP::BufferedTransformation::ChannelFlush(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, bool, int, bool)", referenced from:
vtable for CryptoPP::SimpleProxyFilter in checksum_impl.cpp.o
vtable for CryptoPP::Bufferless<CryptoPP::Filter> in checksum_impl.cpp.o
"CryptoPP::BufferedTransformation::ChannelMessageSeriesEnd(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, int, bool)", referenced from:
vtable for CryptoPP::SimpleProxyFilter in checksum_impl.cpp.o
vtable for CryptoPP::Bufferless<CryptoPP::Filter> in checksum_impl.cpp.o
vtable for CryptoPP::Unflushable<CryptoPP::Filter> in checksum_impl.cpp.o
"CryptoPP::BufferedTransformation::SetRetrievalChannel(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&)", referenced from:
vtable for CryptoPP::SimpleProxyFilter in checksum_impl.cpp.o
vtable for CryptoPP::Bufferless<CryptoPP::Filter> in checksum_impl.cpp.o
vtable for CryptoPP::Unflushable<CryptoPP::Filter> in checksum_impl.cpp.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make: *** [all] Error 2
以前のバージョン5.6.1はclang++でビルドできないため、最新の開発バージョンのCrypto++5.6.2を使用しています。ただし、x86_64アーキテクチャのシンボルが欠落しているというビルドの問題が発生しています。
ヒントをいただければ幸いです。