c++ - Boost librairies not found but compilation is ok -

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i trying use filesystem boost in c++

it seems compilation ok when using

"c++ -c analyse.c -o analyse.o -g -w -wall -l/usr/local/lib -lboost_filesystem -lboost_system"

however have following error when trying execute code :

"error while loading shared libraries: libboost_filesystem.so.1.54.0: cannot open shared object file: no such file or directory", find / -iname "libboost_system.so.1.54.0

i had issues install boost (i first installed 1.49 , after 1.54) wondering if there conflict between 2 version ?

p.s : btw "find / -iname "libboost_system.so.1.54.0" gave me following

/usr/include/boost/boost_1_54_0/bin.v2/libs/system/build/gcc-4.7/release/threading-multi/libboost_system.so.1.54.0  /usr/local/lib/libboost_system.so.1.54.0

try add directory before execution. example: ld_library_path="/usr/local/lib/" ./analyse.o


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