Will not install on OSX 10.5

[ReinhardtScience]

I am getting a library error when trying to open the application:

xception Type: EXC_BREAKPOINT (SIGTRAP)
Exception Codes: 0x0000000000000002, 0x0000000000000000
Crashed Thread: 0

Dyld Error Message:
Symbol not found: __ZNSt13basic_ostreamIwSt11char_traitsIwEE9_M_insertIdEERS2_T_
Referenced from: /Applications/Algodoo.app/Contents/MacOS/Algodoo
Expected in: /usr/lib/libstdc++.6.dylib

Any idea what would cause this? I searched for ZNSt13Basic and it doesn't seem like a standard library