--- Makefile.orig	2021-05-15 20:10:26 UTC
+++ Makefile
@@ -32,7 +32,7 @@ BOWTIE_SHARED_MEM :=
 
 CXXFLAGS += -std=c++11
 
-ARCH = $(shell uname -m)
+ARCH = $(shell uname -p)
 NGS_VER ?= 2.9.2
 VDB_VER ?= 2.9.2-1
 
@@ -59,11 +59,11 @@ ifneq (,$(findstring Darwin,$(shell uname)))
 endif
 
 BITS := 32
-ifneq (,$(findstring $(shell uname -m), x86_64 amd64))
+ifneq (,$(findstring $(shell uname -p), x86_64 amd64))
   BITS := 64
   SSE_FLAG := -msse2
   POPCNT_CAPABILITY ?= 1
-else ifneq (,$(findstring $(shell uname -m), aarch64 arm64 s390x ppc64 ppc64le))
+else ifneq (,$(findstring $(shell uname -p), aarch64 arm64 s390x powerpc64 powerpc64le))
   BITS := 64
   SSE_FLAG :=
   CXXFLAGS += -fopenmp-simd