问题1：ldd bin/i686-m64/ngram-count
1 linux-vdso.so.1 (0x00007fffb1dd2000) 2 liblbfgs-1.10.so => not found 3 libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f63dbf6e000) 4 libstdc++.so.6 => /usr/lib/x86_64-linux-gnu/libstdc++.so.6 (0x00007f63dbbe5000) 5 libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f63db847000) 6 libgomp.so.1 => /usr/lib/x86_64-linux-gnu/libgomp.so.1 (0x00007f63db618000) 7 libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007f63db400000) 8 libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f63db00f000) 9 /lib64/ld-linux-x86-64.so.2 (0x00007f63dc4b7000) 10 libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f63dae0b000)
解决：
step1:apt-cache search liblbfgs step2:apt-get install liblbfgs-dev step3:ln -fs /usr/lib/x86_64-linux-gnu/liblbfgs.so.0.1.10 /usr/lib/x86_64-linux-gnu/liblbfgs-1.10.so