Upgrade to 1.7.2.

Changelog at https://github.com/dtschump/CImg/releases/tag/v.172

graphics/cimg/Makefile

@@ -3,7 +3,7 @@
 
 PORTNAME=	cimg
 DISTVERSIONPREFIX=	v
-DISTVERSION=	1.7.1
+DISTVERSION=	1.7.2
 PORTEPOCH=	3
 CATEGORIES=	graphics devel
 
@@ -50,13 +50,15 @@ REINPLACE_ARGS=	-i ""
 LIB_DEPENDS+=	libboard.so:graphics/libboard
 
 . if !defined(WITH_DEBUG)
-LIB_DEPENDS+=	libpng.so:graphics/png		\
+LIB_DEPENDS+=	libcurl.so:ftp/curl			\
+		libpng.so:graphics/png			\
 		libtiff.so:graphics/tiff		\
-		libIlmImf.so:graphics/OpenEXR	\
+		libHalf.so:graphics/ilmbase		\
+		libIlmImf.so:graphics/OpenEXR		\
 		libgimp-2.0.so:graphics/gimp-app	\
-		libfftw3.so:math/fftw3		\
+		libfftw3.so:math/fftw3			\
 		libopencv_legacy.so:graphics/opencv	\
-		libopencv_core.so:graphics/opencv-core\
+		libopencv_core.so:graphics/opencv-core	\
 		libGraphicsMagick.so:graphics/GraphicsMagick
 USES+=		jpeg
 ALL_TARGET=	Mlinux
@@ -79,6 +81,7 @@ LIB_DEPENDS+=	libavformat.so:multimedia/ffmpeg
 USES+=	fortran
 . endif
 
+USE_XORG+=	x11 xrandr
 . if defined(WITH_XSHM)
 USE_XORG+=	xext
 . endif

graphics/cimg/distinfo

@@ -1,2 +1,3 @@
-SHA256 (dtschump-CImg-v1.7.1-v.171_GH0.tar.gz) = a58bbfb83dbac200103d9b96654339bac5b16ace0d2959404d71aa7150f5d0ab
-SIZE (dtschump-CImg-v1.7.1-v.171_GH0.tar.gz) = 18791773
+TIMESTAMP = 1464635857
+SHA256 (dtschump-CImg-v1.7.2-v.172_GH0.tar.gz) = f078475ba6165587c8110b0dbf1108982af2b303ea226e171e73fbdd32a52e38
+SIZE (dtschump-CImg-v1.7.2-v.172_GH0.tar.gz) = 18831756

graphics/cimg/files/patch-examples__Makefile

@@ -1,4 +1,4 @@
---- examples/Makefile.orig	2016-03-24 12:00:28 UTC
+--- examples/Makefile.orig	2016-05-26 09:25:43 UTC
 +++ examples/Makefile
 @@ -85,7 +85,7 @@ CIMG_EXTRA_FILES = use_tiff_stream use_j
  # Set correct variables and paths
@@ -13,8 +13,8 @@
  CFLAGS       = -I..
  LIBS         =
  else
--CFLAGS       = -I.. -Wall -W
-+CFLAGS       = -I.. -Wall -W $(CPPFLAGS)
+-CFLAGS       = -I.. -Wall -Wextra
++CFLAGS       = -I.. -Wall -Wextra $(CPPFLAGS)
  LIBS         = -lm
  endif
  
@@ -117,7 +117,7 @@
  all $(CIMG_EXTRA_FILES)
  
  # Linux/BSD/Mac OSX targets, with X11 display.
-@@ -412,8 +416,10 @@ $(CIMG_ZLIB_CFLAGS) \
+@@ -436,8 +440,10 @@ $(CIMG_ZLIB_CFLAGS) \
  $(CIMG_CURL_CFLAGS) \
  $(CIMG_OPENCV_CFLAGS) \
  $(CIMG_MAGICK_CFLAGS) \
@@ -128,7 +128,7 @@
  $(CIMG_X11_LIBS) \
  $(CIMG_XSHM_LIBS) \
  $(CIMG_XRANDR_LIBS) \
-@@ -425,6 +431,7 @@ $(CIMG_ZLIB_LIBS) \
+@@ -449,6 +455,7 @@ $(CIMG_ZLIB_LIBS) \
  $(CIMG_CURL_LIBS) \
  $(CIMG_OPENCV_LIBS) \
  $(CIMG_MAGICK_LIBS) \