$NetBSD: patch-Makefile,v 1.2 2012/08/05 00:47:45 wen Exp $

Honor CFLAGS and LDFLAGS from pkgsrc.

--- Makefile.orig	2012-02-12 05:18:18.000000000 +0000
+++ Makefile
@@ -1,8 +1,8 @@
 CC=cc
-CFLAGS=-O3 -Wall -Wextra
+CFLAGS?=-O3 -Wall -Wextra
 
 pigz: pigz.o yarn.o
-	$(CC) -o pigz pigz.o yarn.o -lpthread -lz
+	$(CC) ${LDFLAGS} -o pigz pigz.o yarn.o -lpthread -lz
 	ln -f pigz unpigz
 
 pigz.o: pigz.c yarn.h