$NetBSD: patch-makeinclude.in,v 1.1 2021/05/17 10:38:48 micha Exp $

Use libtool.
Upstream will not merge this (libtool is listed as not acceptable).

--- makeinclude.in.orig	2021-05-04 17:36:17.000000000 +0000
+++ makeinclude.in
@@ -152,20 +152,20 @@ UNINSTALL_DESKTOP = @UNINSTALL_DESKTOP@
 
 .o$(EXEEXT):
 	echo Linking $@...
-	$(CXX) $(ARCHFLAGS) $(LDFLAGS) $< $(LINKFLTK) $(LDLIBS) -o $@
+	$(LIBTOOL) --mode=link $(CXX) $(ARCHFLAGS) $(LDFLAGS) $< $(LINKFLTK) $(LDLIBS) -o $@
 	$(OSX_ONLY) ../fltk-config --post $@
 
 .c.o:
 	echo Compiling $<...
-	$(CC) -I.. $(ARCHFLAGS) @PNGINC@ @JPEGINC@ @ZLIBINC@ $(CFLAGS) -c $< -o $@
+	$(LIBTOOL) --mode=compile $(CC) -I.. $(ARCHFLAGS) @PNGINC@ @JPEGINC@ @ZLIBINC@ $(CFLAGS) -c $< -o $@
 
 .cxx.o:
 	echo Compiling $<...
-	$(CXX) -I.. $(ARCHFLAGS) @PNGINC@ @JPEGINC@ @ZLIBINC@ $(CXXFLAGS) -c $< -o $@
+	$(LIBTOOL) --mode=compile $(CXX) -I.. $(ARCHFLAGS) @PNGINC@ @JPEGINC@ @ZLIBINC@ $(CXXFLAGS) -c $< -o $@
 
 .mm.o:
 	echo Compiling $<...
-	$(CXX) -I.. $(ARCHFLAGS) $(CXXFLAGS) -x objective-c++ -c $< -o $@
+	$(LIBTOOL) --mode=compile $(CXX) -I.. $(ARCHFLAGS) $(CXXFLAGS) -x objective-c++ -c $< -o $@
 
 
 .man.0 .man.1 .man.3 .man.6: