$NetBSD: patch-aa,v 1.3 2016/04/01 11:41:42 jperkin Exp $

Use pkgsrc layout.

--- Makefile.orig	2014-12-19 10:03:18.000000000 +0000
+++ Makefile
@@ -11,7 +11,7 @@
 #    pattern rules
 #  - we use .PHONY
 
-prefix=/usr/local
+prefix=$(PREFIX)
 exec_prefix=$(prefix)
 bindir=$(exec_prefix)/bin
 INSTALL=install -c
@@ -76,7 +76,7 @@ CFLAGS += -DLOGALLOC
 LIBS += -lefence
 endif
 
-all: halibut
+all: halibut doc
 
 SRC := ../
 
@@ -109,6 +109,9 @@ halibut: $(OBJECTS)
 version.o: FORCE
 	$(CC) $(VDEF) -MD -c $(SRC)version.c
 
+doc:
+	$(MAKE) -C ../doc
+
 spotless:: clean
 	rm -f *.d
 
@@ -116,7 +119,8 @@ clean::
 	rm -f *.o halibut core
 
 install:
-	$(INSTALL) -m 755 halibut $(bindir)/halibut
+	mkdir -p $(DESTDIR)$(bindir)
+	$(INSTALL) -m 755 halibut $(DESTDIR)$(bindir)/halibut
 	$(MAKE) -C ../doc install prefix="$(prefix)" INSTALL="$(INSTALL)"
 
 FORCE: # phony target to force version.o to be rebuilt every time