diff -Naurp catalyst-3.0.4.orig/catalyst/targets/stage1.py catalyst-3.0.4/catalyst/targets/stage1.py
--- catalyst-3.0.4.orig/catalyst/targets/stage1.py	2019-02-04 21:58:51.000000000 -0500
+++ catalyst-3.0.4/catalyst/targets/stage1.py	2019-03-04 00:45:40.375967414 -0500
@@ -55,6 +55,10 @@ class stage1(StageBase):
 		if "ldflags" in self.settings:
 			self.settings["LDFLAGS"] = self.settings["ldflags"]
 
+	def override_asflags(self):
+		if "asflags" in self.settings:
+			self.settings["ASFLAGS"] = self.settings["asflags"]
+
 	def set_portage_overlay(self):
 		StageBase.set_portage_overlay(self)
 		if "portage_overlay" in self.settings:
diff -Naurp catalyst-3.0.4.orig/catalyst/targets/stage2.py catalyst-3.0.4/catalyst/targets/stage2.py
--- catalyst-3.0.4.orig/catalyst/targets/stage2.py	2019-02-04 21:58:51.000000000 -0500
+++ catalyst-3.0.4/catalyst/targets/stage2.py	2019-03-04 00:45:40.375967414 -0500
@@ -36,6 +36,10 @@ class stage2(StageBase):
 		if "ldflags" in self.settings:
 			self.settings["LDFLAGS"] = self.settings["ldflags"]
 
+	def override_asflags(self):
+		if "asflags" in self.settings:
+			self.settings["ASFLAGS"] = self.settings["asflags"]
+
 	def set_portage_overlay(self):
 		StageBase.set_portage_overlay(self)
 		if "portage_overlay" in self.settings:
diff -Naurp catalyst-3.0.4.orig/catalyst/targets/stage3.py catalyst-3.0.4/catalyst/targets/stage3.py
--- catalyst-3.0.4.orig/catalyst/targets/stage3.py	2019-03-04 00:44:56.015966860 -0500
+++ catalyst-3.0.4/catalyst/targets/stage3.py	2019-03-04 00:46:03.655967705 -0500
@@ -32,6 +32,10 @@ class stage3(StageBase):
 		if "ldflags" in self.settings:
 			self.settings["LDFLAGS"] = self.settings["ldflags"]
 
+	def override_asflags(self):
+		if "asflags" in self.settings:
+			self.settings["ASFLAGS"] = self.settings["asflags"]
+
 	def set_portage_overlay(self):
 		StageBase.set_portage_overlay(self)
 		if "portage_overlay" in self.settings: