re2 library loading

I am using the following code to test google's RE2 library

int main()
{
  int r = RE2::FullMatch("hello", "h.*o");
  cout <<" match = " << r << endl;
  return 0;
}

I am compling using the following command -

g++ -lre2 -o retest retest.cc

It is compiling fine, but when I am trying to run retest with ./retest its throwing the following error -

error while loading shared libraries: libre2.so.0: cannot open shared object file: No such file or directory

I have checked and libre2.so.0 library does exist at user/local/lib directory and re2/obj/so directory. So why is this error coming am I forgetting some detail to add ?

Answers

Thanks guys as everybody has pointed out, running sudo ldconfig did the trick. I was not even aware what ldconfig is ? Thanks for great response. I dont know how to mark a comment as accepted answer, so just a thanks has to do. @sehe No it did not gave any link errors, but its a good tip that I'll remember in the future.

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