Fix Qt6 MOC compilation on some platforms.

That was super painful.  It seems that some of the Quackle types that
have custom operator==() give fits to the MOC compiler when those
types are used as arguments for slots and/or signals (or maybe it's
only when they're connected in a certain way...frankly, I never did
figure this out precisely to my satisfaction).  The compilers provide
very little help in resolving this problem.

Once I understood the problem, VS22 was giving me just the tiniest
morsel, enough that I could hunt down the offending slot/signal
(it wasn't even giving me the name of the slot/signal...just the type
it was trying to use).  I've changed all offending functions to use
const pointers to types instead of const references, and this makes
Qt happy.

I couldn't find any info on the web directly about this, but here's
the closest I did find, which suggests that this is related to
increased functionality in Qt6 regarding reflection.

https://forum.qt.io/topic/141434/

This fixes my VC++22 x86-64 build.  Hopefully it fixes all of the
others, too.

1 files changed, 1 insertions, 1 deletions

diff --git a/quacker/history.cpp b/quacker/history.cpp
index 30a5361..c391d61 100644
--- a/quacker/history.cpp
+++ b/quacker/history.cpp
@@ -148,7 +148,7 @@ void History::itemActivated(QTableWidgetItem *item)
 	{
 		if (it.value() == item)
 		{
-			emit goToHistoryLocation(it.key());
+			emit goToHistoryLocation(&it.key());
 			break;
 		}
 	}