$NetBSD$

Add -fpic for NetBSD builds.

--- src/Makefile.orig	2019-01-30 14:32:00.000000000 +0000
+++ src/Makefile
@@ -51,7 +51,7 @@ ifeq ($(shell uname), FreeBSD)
 else
 ifeq ($(shell uname), NetBSD)
 	OS = NetBSD
-	CFLAGS += ${M32}
+	CFLAGS += ${M32} -fpic
 	PICOLISP-FLAGS = ${M32} -rdynamic
 	LIB-FLAGS = -lm
 	DYNAMIC-LIB-FLAGS = ${M32} -shared -export-dynamic