PHP source code directory name

I am using Windows 10 and Visual Studio 2015 Community. I am trying to 
build PHP using:

Build your own PHP on Windows
https://wiki.php.net/internals/windows/stepbystepbuild

Step 6 of "Setup the build directory" (summarized) says:

    "Extract the PHP source code to |C:\php-sdk\phpdev\*vc##*\*x##*|"
    ....
    "For example: C:\php-sdk\phpdev\vc11\x86\php-5.6.4-src"

The pattern |C:\php-sdk\phpdev\*vc##*\*x##*| omits the lowest-level 
"php-5.6.4-src". Are there any requiremnens for what must be used for 
that sub-directory name? I assume not.

I can understand it is a good suggestion to provide the PHP version in 
the name, especially if multiple versions are being maintained in a 
system. Do the build scripts require it?  I assume we can use whatever 
seems appropriate for us instead of "php-5.6.4-src".