openimageio: fix build against libraw-0.17.0

srcpkgs/openimageio/patches/libraw-0.17.0-fix.patch

@@ -0,0 +1,30 @@
+From f80e48f22dd58f92a0a9eb9d03cee5c1970af141 Mon Sep 17 00:00:00 2001
+From: Christoph Willing <chris.willing@iinet.net.au>
+Date: Fri, 21 Aug 2015 22:06:29 +1000
+Subject: [PATCH] Only reference LIBRAW_DECODER_FLATFIELD within an #ifdef that
+ ensures that it is defined
+
+---
+ src/raw.imageio/rawinput.cpp | 2 ++
+ 1 file changed, 2 insertions(+)
+
+diff --git src/raw.imageio/rawinput.cpp src/raw.imageio/rawinput.cpp
+index 6295958..1de1081 100644
+--- src/raw.imageio/rawinput.cpp
++++ src/raw.imageio/rawinput.cpp
+@@ -201,6 +201,7 @@ RawInput::open (const std::string &name, ImageSpec &newspec,
+         if (demosaic == demosaic_algs[d])
+             m_processor.imgdata.params.user_qual = d;
+         else if (demosaic == "none") {
++#ifdef LIBRAW_DECODER_FLATFIELD
+             // See if we can access the Bayer patterned data for this raw file
+             libraw_decoder_info_t decoder_info;
+             m_processor.get_decoder_info(&decoder_info);
+@@ -209,6 +210,7 @@ RawInput::open (const std::string &name, ImageSpec &newspec,
+                 return false;
+             }
+ 
++#endif
+             // User has selected no demosaicing, so no processing needs to be done
+             m_process = false;
+