Visual Studio 2010 RC fails for DEFINES with space

When defining a variable for the pre-pocessor via qmakes:

DEFINES += FOO=BAR BAR

the vcxproj generator for Visual Studio 2010 fails to generate a valid project file:
the RC compiler fails.

I tried different syntaxes to have the project file for VS2010 valid, but everything I tried failed:

# DEFINES += FOO=BAR BAR     ### (1) compiles but delivers 1 in main.cpp instead of "BAR BAR"
# DEFINES += FOO="BAR BAR"   ### (2) moc does not work, CC1x Fails with undefined BAR 
# DEFINES += FOO='BAR BAR'   ### (3) moc does not work, CC1x Fails with undefined BAR
# DEFINES += 'FOO="BAR BAR"' ### (4) RC fails
# DEFINES += "FOO=BAR BAR"   ### (5) moc does not work, CC1x Fails with undefined FOO
DEFINES += "FOO=\"BAR BAR\"" ### (6) RC fails  ( FOO seems to be replaced as "BAR BAR" in main.cpp, at least intellisense says so...)

It seems to sum up, that RC and CC need different syntax in the <PreprocessorDefinitions> under <ClCompile> and <ResourceCompile>
If you take aternative (6) with "just" RC failing and change inside the

<ResourceCompile> <PreprocessorDefinitions> FOO=&quot;BAR BAR&quot;

to

"FOO=BAR BAR"

then RC compiles !!!
However I did not check, if using FOO inside the RC file works in this case....

I attached the pro file which was modified from a normal widget app wizard generated project.