[bug #54727] foreach variable is not visible for a target specific variable definition in a recipe

[Paul D. Smith]

Update of bug #54727 (project make):

              Item Group:                     Bug => Enhancement            

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Follow-up Comment #1:

This will definitely never work.  By the time we expand the recipe all
target-specific variables for that recipe have already been assigned: it's not
possible for the recipe to add more target-specific variables to it's target
and have those take effect.

If you try to define a new target inside a recipe you'll get a fatal error. 
I'm not sure how hard it would be to know whether you're defining a new
target-specific variable for the current target inside it's recipe and
generate an error or warning.

I'll leave this open as an enhancement request to get better messaging around
this situation.

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  <https://savannah.gnu.org/bugs/?54727>

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