#16 Make Error: /usr/lib64/libX11.so.6 symbolic link

[Anonymous]

/usr/bin/ld: frame.o: undefined reference to symbol 'XGetWindowAttributes'
/usr/bin/ld: note: 'XGetWindowAttributes' is defined in DSO /usr/lib64/libX11.so.6 so try adding it to the linker command line
/usr/lib64/libX11.so.6: could not read symbols: Invalid operation
collect2: ld returned 1 exit status
make[3]: *** [xvidcap] Error 1

the /usr/lib64/libX11.so.6 is symbolic linked to libX11.so.6.3.0

OS: Fedora 16 x64