$NetBSD: patch-Makefile,v 1.1 2021/05/14 12:15:02 nia Exp $

Honor CXXFLAGS, LDFLAGS.

--- Makefile.orig	2019-02-22 01:00:59.000000000 +0000
+++ Makefile
@@ -11,7 +11,7 @@ isrc = interfac
 ifeq ($(DEBUG),Y)
 	OPTS = -g -Wall -pedantic
 else
-	OPTS = -O2 -Wall -pedantic
+	OPTS = ${CXXFLAGS} -Wall -pedantic
 	POST = strip mm$(E)
 endif
 
@@ -94,7 +94,7 @@ $(IOBJS) : %.o: $(isrc)/%.cc
 	$(CXX) $(OPTS) -I$(CURS_DIR) -c $<
 
 mm$(E):	$(MOBJS) $(IOBJS)
-	$(CXX) -o mm$(E) $(MOBJS) $(IOBJS) $(LIBS)
+	$(CXX) $(LDFLAGS) -o mm$(E) $(MOBJS) $(IOBJS) $(LIBS)
 	$(POST)
 
 dep: