$NetBSD$

# Respect PREFIX and CXXFLAGS

--- Makefile.orig	2020-10-06 03:46:41.000000000 +0000
+++ Makefile
@@ -21,7 +21,7 @@
 # Makefile for bowtie, bowtie2-build, bowtie2-inspect
 #
 
-PREFIX := /usr/local
+PREFIX ?= /usr/local
 bindir := $(PREFIX)/bin
 
 ARCH := $(shell uname -m)
@@ -234,7 +234,7 @@ ifeq (32,$(BITS))
 endif
 
 DEBUG_FLAGS    := -O0 -g3 $(SSE_FLAG)
-RELEASE_FLAGS  := -O3 $(SSE_FLAG) -funroll-loops -g3
+# RELEASE_FLAGS  := -O3 $(SSE_FLAG) -funroll-loops -g3
 NOASSERT_FLAGS := -DNDEBUG
 FILE_FLAGS     := -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE
 DEBUG_DEFS     = -DCOMPILER_OPTIONS="\"$(DEBUG_FLAGS) $(CXXFLAGS)\""
