sudo /sbin/ldconfig

/sbin/ldconfig: /usr/local/lib/ is not a symbolic link

file /usr/local/lib/
    /usr/local/lib/: directory

lib1.so => not found
    lib2.so => not found
    lib3.so => /usr/local/lib/lib3.so (0x00216000)

/usr/local/lib/ is not a symbolic link

sudo egrep '/usr/local' /etc/ld.so.conf.d/*
    projectA.conf.old:/usr/local/projectA/lib
    local.conf:/usr/local/lib

export LD_LIBRARY_PATH=/usr/lib/