Adding required patches. No idea HTF this didn't happen on import.

higan/patches/patch-higan_Makefile

@@ -0,0 +1,25 @@
+$NetBSD: patch-higan_Makefile,v 1.1 2013/02/11 13:38:29 othyro Exp $
+
+Add path to boost headers.
+Use pkgsrc infrastructure for libdl.
+
+--- higan/Makefile.orig	2012-11-04 04:22:50.000000000 +0000
++++ higan/Makefile
+@@ -16,7 +16,7 @@ target  := ethos
+ # compiler
+ c       := $(compiler) -std=gnu99
+ cpp     := $(subst cc,++,$(compiler)) -std=gnu++0x
+-flags   := -I. -O3 -fomit-frame-pointer
++flags   := -I. -O3 -fomit-frame-pointer -I${PREFIX}/include/boost
+ link    := -s
+ objects := libco
+ 
+@@ -34,7 +34,7 @@ endif
+ # platform
+ ifeq ($(platform),x)
+   flags += -march=native
+-  link += -Wl,-export-dynamic -ldl -lX11 -lXext
++  link += -Wl,-export-dynamic ${DL_LIBS} -lX11 -lXext
+ else ifeq ($(platform),win)
+   ifeq ($(arch),win32)
+     flags += -m32

higan/patches/patch-higan_nall_Makefile

@@ -0,0 +1,15 @@
+$NetBSD: patch-higan_nall_Makefile,v 1.1 2013/02/11 13:38:29 othyro Exp $
+
+Allow GCC to DTRT.
+
+--- higan/nall/Makefile.orig	2013-01-14 18:27:28.000000000 +0000
++++ higan/nall/Makefile
+@@ -40,7 +40,7 @@ ifeq ($(compiler),)
+   else ifeq ($(platform),osx)
+     compiler := gcc-mp-4.7
+   else
+-    compiler := gcc-4.7
++    compiler := gcc
+   endif
+ endif
+ 

higan/patches/patch-higan_nall_file.hpp

@@ -0,0 +1,17 @@
+$NetBSD: patch-higan_nall_file.hpp,v 1.1 2013/02/11 13:38:29 othyro Exp $
+
+Work around Linuxism.
+
+--- higan/nall/file.hpp.orig	2013-01-14 18:27:28.000000000 +0000
++++ higan/nall/file.hpp
+@@ -8,6 +8,10 @@
+ #include <nall/windows/utf8.hpp>
+ #include <nall/stream/memory.hpp>
+ 
++#ifndef stat64
++#define stat64 stat
++#endif
++
+ namespace nall {
+   inline FILE* fopen_utf8(const string &utf8_filename, const char *mode) {
+     #if !defined(_WIN32)