boost library, hardtolink&compile, plz help

[eric lin]

Dear Jeffrey (and/or gnu/g++ programers):
  I follow your hint
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root@eric-laptop:/# ldconfig -p | grep -i boost
root@eric-laptop:/# 

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so it looks my thread lib is not available for the runtime linker
although your first commnad do issue a.out without compile/link error
however, when I run ./a.out
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eric@eric-laptop:~/cppcookbook$  ./a.out
./a.out: error while loading shared libraries: libboost_thread.so.1.46.1: cannot open shared object file: No such file or directory
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that looks not what the book author suppose it be.
(so I emailed first author of that book, D. Ryan Stephens, he is not yet reply me)
looking to see better way to make it work right, and thanks a lot in advance, Eric