$NetBSD: patch-Makefile,v 1.4 2018/09/24 13:59:56 leot Exp $

Do not ignore CPPFLAGS and do not force optimization in CFLAGS

--- Makefile.orig	2018-09-23 22:05:55.000000000 +0000
+++ Makefile
@@ -1,7 +1,7 @@
 VERSION=1.0
 
-CPPFLAGS=-DVERSION=\"${VERSION}\" -D_GNU_SOURCE
-CFLAGS+=-Wall -Wextra -g -std=c99 -O3 -pedantic -Ideps
+CPPFLAGS+=-DVERSION=\"${VERSION}\" -D_GNU_SOURCE
+CFLAGS+=-Wall -Wextra -g -std=c99 -pedantic -Ideps
 PREFIX?=/usr/local
 MANDIR?=$(PREFIX)/share/man
 BINDIR?=$(PREFIX)/bin