linfan

ldd /usr/bin/glxspheres shows /usr/lib/libGL.so.1
/usr/bin/glxspheres:
	linux-vdso.so.1 =>  (0x00007fffceb2c000)
	libGL.so.1 => /usr/lib/libGL.so.1 (0x00007f340f529000)
	libX11.so.6 => /usr/lib/libX11.so.6 (0x00007f340f1ed000)
	libGLU.so.1 => /usr/lib/libGLU.so.1 (0x00007f340ef80000)
	libm.so.6 => /lib/libm.so.6 (0x00007f340ec8c000)
	libc.so.6 => /lib/libc.so.6 (0x00007f340e8e9000)
	libglapi.so.0 => /usr/lib/libglapi.so.0 (0x00007f340e6c5000)
	libXext.so.6 => /usr/lib/libXext.so.6 (0x00007f340e4b3000)
	libXdamage.so.1 => /usr/lib/libXdamage.so.1 (0x00007f340e2b1000)
	libXfixes.so.3 => /usr/lib/libXfixes.so.3 (0x00007f340e0ab000)
	libXxf86vm.so.1 => /usr/lib/libXxf86vm.so.1 (0x00007f340dea6000)
	libX11-xcb.so.1 => /usr/lib/libX11-xcb.so.1 (0x00007f340dca5000)
	libxcb-glx.so.0 => /usr/lib/libxcb-glx.so.0 (0x00007f340da91000)
	libxcb.so.1 => /usr/lib/libxcb.so.1 (0x00007f340d876000)
	libdrm.so.2 => /usr/lib/libdrm.so.2 (0x00007f340d66b000)
	libpthread.so.0 => /lib/libpthread.so.0 (0x00007f340d44e000)
	libdl.so.2 => /lib/libdl.so.2 (0x00007f340d24a000)
	libstdc++.so.6 => /usr/lib/libstdc++.so.6 (0x00007f340cf45000)
	libgcc_s.so.1 => /usr/lib/libgcc_s.so.1 (0x00007f340cd2f000)
	/lib/ld-linux-x86-64.so.2 (0x00007f340f788000)
	libXau.so.6 => /usr/lib/libXau.so.6 (0x00007f340cb2d000)
	libXdmcp.so.6 => /usr/lib/libXdmcp.so.6 (0x00007f340c928000)
	librt.so.1 => /lib/librt.so.1 (0x00007f340c720000)
shows:
ldd: ./shows: No such file or directory
/usr/lib/libGL.so.1:
	linux-vdso.so.1 =>  (0x00007fffea557000)
	libglapi.so.0 => /usr/lib/libglapi.so.0 (0x00007fdaf1df5000)
	libXext.so.6 => /usr/lib/libXext.so.6 (0x00007fdaf1be3000)
	libXdamage.so.1 => /usr/lib/libXdamage.so.1 (0x00007fdaf19e0000)
	libXfixes.so.3 => /usr/lib/libXfixes.so.3 (0x00007fdaf17da000)
	libXxf86vm.so.1 => /usr/lib/libXxf86vm.so.1 (0x00007fdaf15d5000)
	libX11-xcb.so.1 => /usr/lib/libX11-xcb.so.1 (0x00007fdaf13d3000)
	libX11.so.6 => /usr/lib/libX11.so.6 (0x00007fdaf1097000)
	libxcb-glx.so.0 => /usr/lib/libxcb-glx.so.0 (0x00007fdaf0e83000)
	libxcb.so.1 => /usr/lib/libxcb.so.1 (0x00007fdaf0c67000)
	libdrm.so.2 => /usr/lib/libdrm.so.2 (0x00007fdaf0a5c000)
	libpthread.so.0 => /lib/libpthread.so.0 (0x00007fdaf083f000)
	libdl.so.2 => /lib/libdl.so.2 (0x00007fdaf063a000)
	libc.so.6 => /lib/libc.so.6 (0x00007fdaf0297000)
	libXau.so.6 => /usr/lib/libXau.so.6 (0x00007fdaf0095000)
	libXdmcp.so.6 => /usr/lib/libXdmcp.so.6 (0x00007fdaefe8f000)
	librt.so.1 => /lib/librt.so.1 (0x00007fdaefc87000)
	/lib/ld-linux-x86-64.so.2 (0x00007fdaf229e000)