Make the port build with the upcoming Qt 4.8.x series.

Since 4.8.0 [1], Qt itself does not automatically include GLU's
headers and libraries with its OpenGL module, so applications which
relied on Qt to get these need to be adjusted.

PORTREVISION bumped since we now explicitly depend on GLU via
USE_GL=glu.

[1] e7eed096a0

Approved by:	miwi (we need this for the Qt 4.8.1 exp-run)

graphics/structuresynth/Makefile

@@ -7,6 +7,7 @@
 
 PORTNAME=	structuresynth
 PORTVERSION=	1.5.0
+PORTREVISION=	1
 CATEGORIES=	graphics
 MASTER_SITES=	SF/${PORTNAME}/Structure%20Synth/Version%201.5%20%28Hinxton%29
 DISTNAME=	StructureSynth-Source-v${PORTVERSION}
@@ -14,6 +15,7 @@ DISTNAME=	StructureSynth-Source-v${PORTVERSION}
 MAINTAINER=	amdmi3@FreeBSD.org
 COMMENT=	Rule-based 3D structure generator
 
+USE_GL=		glu
 USE_ZIP=	yes
 USE_QT_VER=	4
 QT_COMPONENTS=	qmake_build corelib gui opengl moc_build rcc_build xml script
@@ -31,7 +33,8 @@ post-patch:
 
 do-configure:
 	@cd ${WRKSRC} && ${SETENV} ${CONFIGURE_ENV} ${QMAKE} -project \
-		-after "CONFIG+=opengl" -after "QT+=xml opengl script"
+		-after "CONFIG+=opengl" -after "QT+=xml opengl script" \
+		-after "LIBS+=-lGLU"
 	@cd ${WRKSRC} && ${SETENV} ${CONFIGURE_ENV} ${QMAKE} ${QMAKEFLAGS}
 
 do-install: