没有规则将目标设为/usr/lib/libX11.so

make[3]: *** No rule to make target `/usr/lib/libX11.so\', needed by `lib/libsfml-window.so.2.0.0\'.  Stop.

apt-get install libx11-dev

sudo apt-get install libx11-dev
Reading package lists... Done
Building dependency tree       
Reading state information... Done
libx11-dev is already the newest version.
  g++-4.4 libstdc++6-4.4-dev
Use \'apt-get autoremove\' to remove them.
0 upgraded, 0 newly installed, 0 to remove and 32 not upgraded.

Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following packages were automatically installed and are no longer required:
  g++-4.4 libstdc++6-4.4-dev
Use \'apt-get autoremove\' to remove them.
0 upgraded, 0 newly installed, 1 reinstalled, 0 to remove and 32 not upgraded.
Need to get 0 B/3,104 kB of archives.
After this operation, 0 B of additional disk space will be used.
(Reading database ... 279595 files and directories currently installed.)
Preparing to replace libx11-dev 2:1.4.2-1ubuntu3 (using .../libx11-dev_2%3a1.4.2-1ubuntu3_i386.deb) ...
Unpacking replacement libx11-dev ...
Processing triggers for man-db ...
Setting up libx11-dev (2:1.4.2-1ubuntu3) ...