--- Makefile.orig	2018-07-20 20:26:02 UTC
+++ Makefile
@@ -117,7 +117,7 @@ endif
 #KEEP = true
 
 # Default compilation flags.
-CFLAGS = -O3
+CFLAGS ?= -O3
 # Use this for debugging output instead.
 #CFLAGS = -g -O2
 
@@ -145,7 +145,7 @@ EXTRA_CFLAGS += -fPIC
 endif
 ifneq "$(findstring x86,$(host))" ""
 # architecture-specific options for x86 and x86_64
-EXTRA_CFLAGS += -msse -ffast-math
+EXTRA_CFLAGS += -ffast-math
 endif
 
 # DSP sources and derived files.