diff -rupN higan_v106-source.orig/higan/GNUmakefile higan_v106-source/higan/GNUmakefile
--- higan_v106-source.orig/higan/GNUmakefile	2017-12-27 23:12:21.263872763 +0100
+++ higan_v106-source/higan/GNUmakefile	2017-12-27 23:12:30.243627883 +0100
@@ -1,4 +1,4 @@
-build := optimize
+build := release
 include ../nall/GNUmakefile
 
 binary := application
@@ -26,7 +26,6 @@ else ifneq ($(filter $(platform),linux b
   flags += -fopenmp
   link += -fopenmp
   ifeq ($(binary),application)
-    flags += -march=native
     link += -Wl,-export-dynamic
     link += -lX11 -lXext
   else ifeq ($(binary),library)
diff -rupN higan_v106-source.orig/icarus/GNUmakefile higan_v106-source/icarus/GNUmakefile
--- higan_v106-source.orig/icarus/GNUmakefile	2017-12-27 23:12:21.280538976 +0100
+++ higan_v106-source/icarus/GNUmakefile	2017-12-27 23:12:30.243627883 +0100
@@ -1,4 +1,4 @@
-build := optimize
+build := release
 include ../nall/GNUmakefile
 include ../hiro/GNUmakefile
 
diff -rupN higan_v106-source.orig/nall/GNUmakefile higan_v106-source/nall/GNUmakefile
--- higan_v106-source.orig/nall/GNUmakefile	2017-12-27 23:12:21.283872217 +0100
+++ higan_v106-source/nall/GNUmakefile	2017-12-27 23:12:44.326577547 +0100
@@ -40,8 +40,8 @@ cflags := -x c -std=c11
 objcflags := -x objective-c -std=c11
 cppflags := -x c++ -std=c++14
 objcppflags := -x objective-c++ -std=c++14
-flags :=
-link :=
+flags := $(CXXFLAGS)
+link := $(LDFLAGS)
 
 # compiler detection
 ifeq ($(compiler),)
@@ -120,7 +120,7 @@ ifeq ($(threaded),true)
 endif
 
 # paths
-prefix := $(HOME)/.local
+prefix := /usr
 
 # function rwildcard(directory, pattern)
 rwildcard = \