macos - Handling "dyld: lazy symbol binding failed: Symbol not found" error when nm does not find symbol

Question

I have a fat (32- and 64-bit) Intel binary called myBinary that fails to run on another workstation running Mac OS X 10.8.2:

$ myBinary
dyld: lazy symbol binding failed: Symbol not found: __ZNSt8__detail15_List_node_base7_M_hookEPS0_
  Referenced from: /usr/local/bin/myBinary
  Expected in: /usr/lib/libstdc++.6.dylib

dyld: Symbol not found: __ZNSt8__detail15_List_node_base7_M_hookEPS0_
  Referenced from: /usr/local/bin/myBinary
  Expected in: /usr/lib/libstdc++.6.dylib

Trace/BPT trap: 5

I compiled it from a Mac OS X 10.8.2 workstation running GCC 4.7.2:

$ gcc --version
gcc (MacPorts gcc47 4.7.2_2+universal) 4.7.2

I ran nm and the symbol is undefined:

$ nm /usr/local/bin/myBinary | grep __ZNSt8__detail15_List_node_base7_M_hookEPS0_
     U __ZNSt8__detail15_List_node_base7_M_hookEPS0_

What did I miss or do wrong when compiling myBinary? I'm not sure what I can do about a missing symbol in /usr/lib/libstdc++.6.dylib —?should I have statically compiled the C++ library into myBinary?

Answer 1

yeah you have 2 options, either not use libraries that the customer won't have... (you can provide them as a dyld or framework.)

or just statically link the library... this will actually end up being smaller in memory and disk space if your package is only one process, because you can strip symbols that you don't use.