$NetBSD$

# Respect env
--- Makefile.orig	2018-09-14 16:04:25.976840223 +0000
+++ Makefile
@@ -8,9 +8,9 @@ bindir = $(prefix)/bin
 SEQAN_DIR = SeqAn-1.1
 SEQAN_INC = -I $(SEQAN_DIR)
 INC = $(SEQAN_INC) -I third_party
-CPP = g++
-CXX = $(CPP)
-CC = gcc
+CPP ?= g++
+CXX ?= $(CPP)
+CC ?= gcc
 HEADERS = $(wildcard *.h)
 BOWTIE_MM = 1
 BOWTIE_SHARED_MEM = 1
