IMPORTANT - PLEASE READ:
Beginning on November 4, 2019, I will NO LONGER support people that have downloaded the source as a zip file. Using git has much more flexibility. In addition, there is much less liklihood that a user will contact me with a problem that is ALREADY fixed.
If your system says that /lib/modules/...../build does not exist, you have not installed the kernel headers, you have done it incorrectly, or you are not running the kernel for which the headers have been installed. The necessary steps are dependent on which distro you are using. Creating a new issue and asking at GitHub will not be productive.
Unsolicited E-mail sent to my private address will be ignored!!
If a build fails that previously worked, perform a 'git pull' and retry before reporting a problem. As noted, if you had downloaded the source in zip form, then you would need to get an entirely new source file. That is why using git, which downloads only the changed lines, is required.
Repository for the stand-alone RTL8192CU driver.
To compile the driver, you need to have make and a compiler installed. In addition, you must have the kernel headers installed. If you do not understand what this means, consult your distro.
make all
sudo make install