how to solve the cannot find lX11
I am trying to run the Khepera simulator version 2 in Red Hat LInux 9. But after I enter the make command, I get the ff. error/messages:
/usr/bin/ld: cannot find -lX11
collect2: ld returned 1 exit status
make: *** [sim] Error 1
What do I do? And also, I've read in other posts that they just edit the makefile. I am new to Linux and would also like to ask how do you edit a makefile? Thanks...