$NetBSD: patch-src_Makefile,v 1.1 2019/11/02 14:35:37 nia Exp $

Compile with CPPFLAGS, not LDFLAGS.

--- src/Makefile.orig	2019-10-13 13:56:56.000000000 +0000
+++ src/Makefile
@@ -34,7 +34,7 @@ $(BIN): $(OBJ)
 	$(CC) $(LDFLAGS) $(OBJ) -o $@ $(LIBS) -lm
 
 %.o: %.c $(HFILES)
-	$(CC) $(CFLAGS) $(LDFLAGS) -c $<
+	$(CC) $(CFLAGS) $(CPPFLAGS) -c $<
 
 .PHONY: all clean
 
