Update to dustrac-1.13.

Release notes:
https://github.com/juzzlin/DustRacing2D/releases/tag/1.13.0

Looks ok to landry@

From David Carlier; thanks!

games/dustrac/Makefile

@@ -1,10 +1,12 @@
-# $OpenBSD: Makefile,v 1.10 2017/07/27 09:55:44 sthen Exp $
+# $OpenBSD: Makefile,v 1.11 2017/09/05 11:00:02 bentley Exp $
 
 COMMENT =		traditional top-down car racing game
 
-V =			1.12.0
-DISTNAME =		dustrac-$V
-REVISION =		1
+PKGNAME =		dustrac-${GH_TAGNAME}
+
+GH_ACCOUNT =		juzzlin
+GH_PROJECT =		DustRacing2D
+GH_TAGNAME =		1.13.0
 
 CATEGORIES =		games
 
@@ -13,12 +15,10 @@ HOMEPAGE =		https://juzzlin.github.io/DustRacing2D/
 # GPLv3+
 PERMIT_PACKAGE_CDROM =	Yes
 
-WANTLIB += GL GLU X11 c m openal pthread vorbisfile
+WANTLIB += GL GLU c m openal pthread vorbisfile
 WANTLIB += Qt5Core Qt5Gui Qt5OpenGL Qt5Widgets Qt5Xml
 WANTLIB += ${COMPILER_LIBCXX}
 
-MASTER_SITES =		https://github.com/juzzlin/DustRacing2D/releases/download/$V/
-
 MODULES =		devel/cmake \
 			x11/qt5
 RUN_DEPENDS =		devel/desktop-file-utils \
@@ -30,7 +30,6 @@ LIB_DEPENDS =		audio/libvorbis \
 CONFIGURE_ARGS +=	-DReleaseBuild=ON \
 			-DDATA_PATH=${PREFIX}/share/dustrac \
 			-DDOC_PATH=${PREFIX}/share/dustrac \
-			-DQOpenGLFunctions=OFF \
-			-DNO_GLEW=OFF
+			-DQOpenGLFunctions=OFF
 
 .include <bsd.port.mk>

games/dustrac/distinfo

@@ -1,2 +1,2 @@
-SHA256 (dustrac-1.12.0.tar.gz) = 4CJOudXL94cxHa64oXaZF+Cu2cHPIUDz4HHdWijT3L8=
-SIZE (dustrac-1.12.0.tar.gz) = 18462901
+SHA256 (DustRacing2D-1.13.0.tar.gz) = DMOD71kPqzH7HYe7SyQc3+yfyPe4JCGl5ZSo/dbwvJY=
+SIZE (DustRacing2D-1.13.0.tar.gz) = 18466297

games/dustrac/patches/patch-src_editor_editorview_cpp

@@ -1,13 +0,0 @@
-$OpenBSD: patch-src_editor_editorview_cpp,v 1.1 2017/05/22 13:48:39 espie Exp $
-
-Index: src/editor/editorview.cpp
---- src/editor/editorview.cpp.orig
-+++ src/editor/editorview.cpp
-@@ -35,6 +35,7 @@
- #include "tracktile.hpp"
- 
- #include <cassert>
-+#include <cstdlib>
- 
- EditorView::EditorView(EditorData & editorData, QWidget * parent)
- : QGraphicsView(parent)

games/dustrac/patches/patch-src_game_MiniCore_Graphics_MCGLEW

@@ -0,0 +1,17 @@
+$OpenBSD: patch-src_game_MiniCore_Graphics_MCGLEW,v 1.1 2017/09/05 11:00:02 bentley Exp $
+
+Fix undefined references to glBindVertexArray, etc.
+
+Index: src/game/MiniCore/Graphics/MCGLEW
+--- src/game/MiniCore/Graphics/MCGLEW.orig
++++ src/game/MiniCore/Graphics/MCGLEW
+@@ -7,7 +7,9 @@
+       #include <windows.h>
+       #include <wingdi.h>
+     #endif
++    #define GL_GLEXT_PROTOTYPES
+     #include <GL/gl.h>
++    #include <GL/glext.h>
+   #else
+     #include <GLES/gl.h>
+   #endif

games/dustrac/pkg/PLIST

@@ -1,4 +1,4 @@
-@comment $OpenBSD: PLIST,v 1.3 2017/01/15 13:50:53 landry Exp $
+@comment $OpenBSD: PLIST,v 1.4 2017/09/05 11:00:02 bentley Exp $
 @bin bin/dustrac-editor
 @bin bin/dustrac-game
 share/appdata/
@@ -9,7 +9,7 @@ share/dustrac/
 share/dustrac/AUTHORS
 share/dustrac/CHANGELOG
 share/dustrac/COPYING
-share/dustrac/README
+share/dustrac/README.md
 share/dustrac/editorModels.conf
 share/dustrac/fonts/
 share/dustrac/fonts.conf