pragma Rename_Pragma ( [New_Name =>] IDENTIFIER, [Renamed =>] pragma_IDENTIFIER);
This pragma provides a mechanism for supplying new names for existing
New_Name identifier can subsequently be used as a synonym for
the Renamed pragma. For example, suppose you have code that was originally
developed on a compiler that supports Inline_Only as an implementation defined
pragma. And suppose the semantics of pragma Inline_Only are identical to (or at
least very similar to) the GNAT implementation defined pragma
Inline_Always. You could globally replace Inline_Only with Inline_Always.
However, to avoid that source modification, you could instead add a configuration pragma:
pragma Rename_Pragma ( New_Name => Inline_Only, Renamed => Inline_Always);
Then GNAT will treat "pragma Inline_Only ..." as if you had written "pragma Inline_Always ...".
Pragma Inline_Only will not necessarily mean the same thing as the other Ada compiler; it’s up to you to make sure the semantics are close enough.