graphics/fv: make the code both C++14/17-friendly, cleanup Makefile

Fixes:	dd362b15e2

graphics/fv/Makefile

@@ -13,35 +13,15 @@ LICENSE=	GPLv2+
 
 LIB_DEPENDS=	libpng.so:graphics/png
 
-USES=		gl gmake pkgconfig zip
-USE_GL=		glut
+USES=		gl gmake xorg zip
+USE_GL=		gl glu glut
+USE_XORG=	sm x11 xext xi xmu
 ALL_TARGET=	${PORTNAME}
 
-CXXFLAGS+=	$$(pkg-config --cflags libpng) -I${LOCALBASE}/include
-LDFLAGS+=	$$(pkg-config --libs libpng) -L${LOCALBASE}/lib -lglut \
-		-lGLU -lGL -lbz2 -lm -lz -llzma -lpthread
-
 PORTDOCS=	AUTHORS ChangeLog README
 PLIST_FILES=	bin/${PORTNAME}
 
-OPTIONS_DEFINE=	DEBUG DOCS
-
-DEBUG_CXXFLAGS_OFF=	-DNDEBUG
-
-.include <bsd.port.options.mk>
-
-.if ${OPSYS} == FreeBSD && ( ${OSVERSION} >= 1400091 || ( ${OSVERSION} >= 1302505 && ${OSVERSION} < 1400000 ))
-USES+=	llvm:max=15
-CC=	clang${LLVM_VERSION}
-CPP=	clang-cpp${LLVM_VERSION}
-CXX=	clang++${LLVM_VERSION}
-.endif
-
-post-patch:
-	@${REINPLACE_CMD} -e \
-		's|^CXX=|CXX?=| ; \
-		 s|^CXXFLAGS=|CXXFLAGS?=| ; \
-		 s|^LDFLAGS=|LDFLAGS?=|' ${WRKSRC}/Makefile
+OPTIONS_DEFINE=	DOCS
 
 do-install:
 	${INSTALL_PROGRAM} ${WRKSRC}/${PORTNAME} ${STAGEDIR}${PREFIX}/bin

graphics/fv/files/patch-Makefile

@@ -0,0 +1,18 @@
+--- Makefile.orig	2012-05-07 01:48:43 UTC
++++ Makefile
+@@ -62,11 +62,12 @@ LDFLAGS=\
+ -L/opt/local/lib -lpng15 -lz -lbz2 -llzma -lpthread \
+ -lm
+ else
+-CXXXFLAGS=\
+-$(OPT)
++CXXFLAGS+=\
++-Wno-deprecated \
++-I$(LOCALBASE)/include
+ LDFLAGS=\
+ -lpng -lz -lbz2 -llzma -lpthread \
+--lfreeglut -lGLU -lGL -L/usr/X11R6/lib -lXi -lXmu -lX11 -lXext -lSM \
++-lglut -lGLU -lGL -L$(LOCALBASE)/lib -lXi -lXmu -lX11 -lXext -lSM \
+ -lm 
+ endif
+ endif

graphics/fv/files/patch-common.h

@@ -0,0 +1,18 @@
+--- common.h.orig	2012-05-07 01:48:43 UTC
++++ common.h
+@@ -108,6 +108,7 @@ inline T deg2rad(T angle)
+ 	return angle * M_PI / 180.0;
+ }
+ 
++#if _LIBCPP_STD_VER <= 14
+ template <class T>
+ inline T clamp(T x, T a, T b)
+ {
+@@ -118,6 +119,7 @@ inline T clamp(T x, T a, T b)
+ 	}
+ 	return x;
+ }
++#endif
+ 
+ extern bool isLittleEndian();
+