/usr/lib/ is in gobjc-4.6 4.6.3-1ubuntu5.
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/usr/lib/gcc/
/usr/lib/gcc/x86_64-linux-gnu/
/usr/lib/gcc/x86_64-linux-gnu/4.6/
/usr/lib/gcc/x86_64-linux-gnu/4.6/libobjc.a
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/usr/lib/gcc/x86_64-linux-gnu/4.6/libobjc_gc.a
/usr/lib/gcc/x86_64-linux-gnu/4.6/include/
/usr/lib/gcc/x86_64-linux-gnu/4.6/include/objc/
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/usr/lib/gcc/x86_64-linux-gnu/4.6/include/objc/typedstream.h
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/usr/lib/gcc/x86_64-linux-gnu/4.6/include/objc/encoding.h
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