Can't link libboost solution on running time

I installed boost_1_55_0 under /usr/local/boost_1_55_0, and in my makefile I set the linking flag as:

CC = g++
CFLAGS = -I ./ -I/usr/local/boost_1_55_0 -w -std=c++11
LFLAGS = -L./ -lm -lpthread -L/usr/local/boost_1_55_0/lib -lboost_regex

I encountered nothing during compile time, but I got:

./$(exec): error while loading shared libraries: libboost_regex.so.1.55.0: cannot open shared object file: No such file or directory

I'm pretty sure I cleaned all old files and compiled again, I also granted access to read the files in usr/local/boost_1_55_0 by sudo chmod -R +x /usr/local/boost_1_55_0 just in case I banned access to read. However, I still got this error. I also tried to move boost_1_55_0 in /usr/lib/ but it does not work either.

I've also read this question: Compiling issue with boost and tried both solutions under this question, but neither of them works for me. Can someone figure out a different solution?