$NetBSD$

Add DESTDIR support.
Remove unportable BACKTRACE default setting.
Pre-create directories instead of using unportable install -D.

--- src/Makefile.orig	2005-01-14 09:15:17.000000000 +0000
+++ src/Makefile
@@ -3,5 +3,5 @@
 #
 
-prefix=/usr/local
+prefix=${PREFIX}
 bindir=$(prefix)/bin
 libdir=$(prefix)/lib
@@ -12,5 +12,5 @@ UILIBS=$(shell sdl-config --libs) -lSDL_
 UIFLAGS=$(shell sdl-config --cflags)
 
-FEATURES=-DHAVE_BACKTRACE=1 -DHAVE_VARIADIC_MACROS=1
+FEATURES=-DHAVE_VARIADIC_MACROS=1
 DEBUGCXXFLAGS=-ggdb1 -rdynamic
 CXXFLAGS=$(FEATURES) -Wall -I. $(UIFLAGS) $(shell xml2-config --cflags) -DICON_FILE=\"$(datadir)/pixmaps/u4.bmp\" -DVERSION=\"$(VERSION)\" $(DEBUGCXXFLAGS)
@@ -26,25 +26,28 @@ include Makefile.common
 
 install::
-	$(INSTALL) -D $(MAIN) $(bindir)/$(MAIN)
-	$(INSTALL) -D ../icons/u4.bmp $(datadir)/pixmaps/u4.bmp
-	$(INSTALL) -D ../icons/u4.png $(datadir)/pixmaps/u4.png
-	mkdir -p $(libdir)/u4/music
-	$(INSTALL) ../mid/*.mid $(libdir)/u4/music
-	mkdir -p $(libdir)/u4/sound
-	$(INSTALL) ../sound/*.ogg $(libdir)/u4/sound
-	$(INSTALL) ../sound/*.wav $(libdir)/u4/sound
-	$(INSTALL) -D dumpsavegame $(libdir)/u4/dumpsavegame
-	$(INSTALL) -D u4enc $(libdir)/u4/u4enc
-	$(INSTALL) -D u4dec $(libdir)/u4/u4dec
-	$(INSTALL) -D tlkconv $(libdir)/u4/tlkconv
-	$(INSTALL) ../conf/*.xml $(libdir)/u4
-	mkdir -p $(libdir)/u4/dtd
-	$(INSTALL) ../conf/dtd/*.dtd $(libdir)/u4/dtd
-	mkdir -p $(libdir)/u4/graphics
-	mkdir -p $(libdir)/u4/graphics/ega
-	mkdir -p $(libdir)/u4/graphics/vga
-	$(INSTALL) ../graphics/ega/*.png $(libdir)/u4/graphics/ega
-	$(INSTALL) ../graphics/vga/*.png $(libdir)/u4/graphics/vga
-	$(INSTALL) -D ../u4.desktop $(datadir)/applications/u4.desktop
+	mkdir -p $(DESTDIR)$(bindir)
+	$(INSTALL) $(MAIN) $(DESTDIR)$(bindir)/$(MAIN)
+	mkdir -p $(DESTDIR)$(datadir)/pixmaps
+	$(INSTALL) ../icons/u4.bmp $(DESTDIR)$(datadir)/pixmaps/u4.bmp
+	$(INSTALL) ../icons/u4.png $(DESTDIR)$(datadir)/pixmaps/u4.png
+	mkdir -p $(DESTDIR)$(libdir)/u4/music
+	$(INSTALL) ../mid/*.mid $(DESTDIR)$(libdir)/u4/music
+	mkdir -p $(DESTDIR)$(libdir)/u4/sound
+	$(INSTALL) ../sound/*.ogg $(DESTDIR)$(libdir)/u4/sound
+	$(INSTALL) ../sound/*.wav $(DESTDIR)$(libdir)/u4/sound
+	$(INSTALL) dumpsavegame $(DESTDIR)$(libdir)/u4/dumpsavegame
+	$(INSTALL) u4enc $(DESTDIR)$(libdir)/u4/u4enc
+	$(INSTALL) u4dec $(DESTDIR)$(libdir)/u4/u4dec
+	$(INSTALL) tlkconv $(DESTDIR)$(libdir)/u4/tlkconv
+	$(INSTALL) ../conf/*.xml $(DESTDIR)$(libdir)/u4
+	mkdir -p $(DESTDIR)$(libdir)/u4/dtd
+	$(INSTALL) ../conf/dtd/*.dtd $(DESTDIR)$(libdir)/u4/dtd
+	mkdir -p $(DESTDIR)$(libdir)/u4/graphics
+	mkdir -p $(DESTDIR)$(libdir)/u4/graphics/ega
+	mkdir -p $(DESTDIR)$(libdir)/u4/graphics/vga
+	$(INSTALL) ../graphics/ega/*.png $(DESTDIR)$(libdir)/u4/graphics/ega
+	$(INSTALL) ../graphics/vga/*.png $(DESTDIR)$(libdir)/u4/graphics/vga
+	mkdir -p $(DESTDIR)$(datadir)/applications
+	$(INSTALL) ../u4.desktop $(DESTDIR)$(datadir)/applications/u4.desktop
 
 # use GCC's automatic dependency generation
