NORDumper

Hey all i am using an iphone 3g ios 4.1 and trying to dump my iphone baseband using NORDumper but it gives me this error

Code:

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/usr/bin$ NORDumper dump.bin
dyld: Library not loaded: /usr/lib/libgcc_s_v6.1.dylib
  Referenced from: /usr/bin/NORDumper
  Reason: image not found
-sh: line 78:  323 Trace/BPT trap          NORDumper dump.bin

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I can't find the v6.1 but i've installed something and got "libgcc_s_1.dylib"
Please help
Thanks in advance