Thank you for the reply Jeff that did fix the issue.  I am now getting a 
different issue.  It looks like even when I use setenv-ios.sh arm64, it is 
still building the library for x86_64 architecture.  It is also not 
building it for mobile according to xcode.  It looks like all the .o 
files(such as sha.o or osrng.o) are built for OSX instead of iOS.  From my 
testing it looks like the env is not being set up properly to use the right 
architecture but I am not positive on that.  Any ideas?

Patrick

On Tuesday, October 25, 2016 at 3:28:24 PM UTC-5, Jeffrey Walton wrote:
>
>
>
> On Tuesday, October 25, 2016 at 2:12:24 PM UTC-4, pdoh...@cipherloc.net 
> wrote:
>>
>> I am having an issue when trying to use the Crypto++ Library on an iOS 
>> device... Below are the errors I am getting:
>>
>> Undefined symbols for architecture arm64:
>>   "typeinfo for unsigned char", referenced from:
>>       bool CryptoPP::NameValuePairs::GetValue<unsigned char>(char const*, 
>> unsigned char&) const in libA.a(basecode.o)
>>   "std::__1::basic_string<char, std::__1::char_traits<char>, 
>> std::__1::allocator<char> >::assign(char const*, unsigned long)", 
>> referenced from:
>>       CryptoPP::BERDecodeTextString(CryptoPP::BufferedTransformation&, 
>> std::__1::basic_string<char, std::__1::char_traits<char>, 
>> std::__1::allocator<char> >&, unsigned char) in libA.a(asn.o)
>> ... 
>>
> I have done a lipo -info on my library and it does contain the arm64 
>> architecture.  Any idea's on what could be causing this?  Appreciate the 
>> help.
>>
>
> It looks like the Crypto++ library was _not_ built against LLVM's libc++. 
> Instead, it was built against GNU's libstdc++. The sign of that is LLVM's 
> anonymous namespace "__1".
>
> To resolve the issue, add -stdlib=libc++ to CXXFLAGS.
>
> You might also be interested in 
> http://www.cryptopp.com/wiki/IOS_(Command_Line) . The short of it is, 
> start with 'setenv-ios.sh':
>
>     $ . ./setenv-ios.sh arm64
>     Configuring for iPhoneOS (arm64)
>     XCODE_SDK: iPhoneOS7.1.sdk
>     XCODE_DEVELOPER: /Applications/Xcode-5_1.app/Contents/Developer
>     XCODE_TOOLCHAIN: /Applications/Xcode-5_1.app/Contents/Developer/usr/bin
>     XCODE_DEVELOPER_TOP: 
> /Applications/Xcode-5_1.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer
>     IOS_ARCH: arm64
>     IOS_TOOLCHAIN: 
> /Applications/Xcode-5_1.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/
>     IOS_FLAGS: -miphoneos-version-min=7
>     IOS_SYSROOT: 
> /Applications/Xcode-5_1.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS7.1.sdk
>
>     
> *******************************************************************************
>     It looks the the environment is set correctly. Your next step is
>     build the library with 'make -f GNUmakefile-cross'
>     
> *******************************************************************************
>
> Jeff
>

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