As per bug #472104 add option --verbose-slot-rebuilds=y|n
diff --git a/pym/_emerge/depgraph.py b/pym/_emerge/depgraph.py
index 835bd6b..04d7aae 100644
--- a/pym/_emerge/depgraph.py
+++ b/pym/_emerge/depgraph.py
@@ -7692,8 +7692,9 @@
 		if not unresolved_conflicts:
 			self._show_missed_update()
 
-		self._compute_abi_rebuild_info()
-		self._show_abi_rebuild_info()
+		if self._frozen_config.myopts.get("--verbose-slot-rebuilds", 'y') != 'n':
+			self._compute_abi_rebuild_info()
+			self._show_abi_rebuild_info()
 
 		self._show_ignored_binaries()
 
diff --git a/pym/_emerge/main.py b/pym/_emerge/main.py
index 6225fc9..1e21ddb 100644
--- a/pym/_emerge/main.py
+++ b/pym/_emerge/main.py
@@ -156,6 +156,7 @@
 		'--usepkg'               : y_or_n,
 		'--usepkgonly'           : y_or_n,
 		'--verbose'              : y_or_n,
+		'--verbose-slot-rebuilds': y_or_n,
 	}
 
 	short_arg_opts = {
@@ -640,6 +641,10 @@
 			"help"     : "verbose output",
 			"choices"  : true_y_or_n
 		},
+		"--verbose-slot-rebuilds": {
+			"help"     : "verbose slot rebuild output",
+			"choices"  : true_y_or_n
+		},
 	}
 
 	parser = ArgumentParser(add_help=False)