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[patch] explain possible conflicts with -dCHARS and cpp


If you use @option{-dM} without the @option{-E} option, @option{- dM} is
interpreted as a synonym for @option{-fdump-rtl-mach}. @xref (or one of
the other cross-referencing nodes){the node for -fdump-rtl-mach}.

Once more into the breach...


Here's another run at it. I pretty much used the wording above, but you can't
xref something in another document afaik so we can't xref it to the gcc manual.
I could put another note to look over there for more information if you'd like.


Otherwise, tested by building and examining the docs on x86-darwin.

OK?

-eric

2007-07-03 Eric Christopher <echristo@apple.com>

	* doc/cppopts.texi: Add conflicting option note to -dM.
	* doc/invoke.texi: Add note about possible conflicts with
	-E for -dCHARS and note that -dM will not produce
	any results if there is no machine dependent reorg.

Attachment: doc.diff.txt
Description: Text document



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