Visual Studio Backend Doesn't Work when project is on different drive as include paths

[jmoguillansky-gpsw]

Describe the bug
When installing the project in a specific drive, e.g. drive D, and adding include paths on a different drive , e.g. drive C, meson setup will crash:

Traceback (most recent call last):
File "c:\hostedtoolcache\windows\python\3.7.9\x64\lib\site-packages\mesonbuild\mesonmain.py", line 140, in run
return options.run_func(options)
File "c:\hostedtoolcache\windows\python\3.7.9\x64\lib\site-packages\mesonbuild\msetup.py", line 253, in run
app.generate()
File "c:\hostedtoolcache\windows\python\3.7.9\x64\lib\site-packages\mesonbuild\msetup.py", line 161, in generate
self._generate(env)
File "c:\hostedtoolcache\windows\python\3.7.9\x64\lib\site-packages\mesonbuild\msetup.py", line 223, in _generate
intr.backend.generate() File "c:\hostedtoolcache\windows\python\3.7.9\x64\lib\site-packages\mesonbuild\backend\vs2010backend.py", line 188, in generate
projlist = self.generate_projects()
File "c:\hostedtoolcache\windows\python\3.7.9\x64\lib\site-packages\mesonbuild\backend\vs2010backend.py", line 422, in generate_projects
self.gen_vcxproj(target, str(projfile_path), proj_uuid)
File "c:\hostedtoolcache\windows\python\3.7.9\x64\lib\site-packages\mesonbuild\backend\vs2010backend.py", line 971, in gen_vcxproj
args.append('-I' + self.relpath(curdir, target.subdir)) # build dir
File "c:\hostedtoolcache\windows\python\3.7.9\x64\lib\site-packages\mesonbuild\backend\backends.py", line 339, in relpath
os.path.join('dummyprefixdir', fromdir))
File "c:\hostedtoolcache\windows\python\3.7.9\x64\lib\ntpath.py", line 562, in relpath
path_drive, start_drive))
ValueError: path is on mount 'C:', start on mount 'D:'

When looking at the code:
https://github.com/mesonbuild/meson/blob/0.56/mesonbuild/backend/vs2010backend.py
This logic is not correct:

for d in reversed(target.get_include_dirs()):
# reversed is used to keep order of includes
for i in reversed(d.get_incdirs()):
curdir = os.path.join(d.get_curdir(), i)
args.append('-I' + self.relpath(curdir, target.subdir)) # **** won't work if different drive letters ****

What if the include path is in drive D and the current directory is in drive C?

To Reproduce
Install dependency xyz in drive C and project on drive D

xyz_dep = dependency('xyz')
libxyz = library(
dependencies: [ xyz_dep ]
)

Expected behavior
Meson should support project directories on any drive and include directories on any drive

system parameters
native build
Windows 10
Python 3.7.9