AllowCrossTargeting in .fsproj files

Question

What's the effect of having

<AllowCrossTargeting>true</AllowCrossTargeting>

in a fsproj file? I can't find any documentation about it

Answer 1

If you search the F# 3.0 sources for AllowCrossTargeting, it only appears in one place: fsharp/src/fsharp/Salsa/salsa.fs, line 686.

Since it appears to be a write-only property as far as F# is concerned, my guess is that it has something to do with allowing the F# compiler to run on one version of the .NET framework whilst targeting another version. Other than that, searching Google for the property name only turns up .fsproj files -- so it doesn't appear AllowCrossTargeting does anything at all right now.