[OpenImageIO] Add missing patch.

[Richard Shaw]

commit ae9c86a2edc675d15fc1180143dabdbde195cd01
Author: Richard M. Shaw <hobbes1069 at gmail.com>
Date:   Thu Feb 12 07:13:45 2015 -0600

    Add missing patch.

 OpenImageIO.spec         |    3 +++
 oiio-1.5.11-unused.patch |   12 ++++++++++++
 2 files changed, 15 insertions(+), 0 deletions(-)
---
diff --git a/OpenImageIO.spec b/OpenImageIO.spec
index 7abe023..a174a40 100644
--- a/OpenImageIO.spec
+++ b/OpenImageIO.spec
@@ -14,6 +14,8 @@ Source0:        https://github.com/%{name}/%{subname}/archive/Release-%{version}
 # Images for test suite
 #Source1:        oiio-images.tar.gz
 
+Patch0:         oiio-1.5.11-unused.patch
+
 BuildRequires:  cmake
 BuildRequires:  txt2man
 BuildRequires:  qt4-devel
@@ -84,6 +86,7 @@ Development files for package %{name}
 
 %prep
 %setup -q -n oiio-Release-%{version}
+%patch0 -p1
 
 # Remove bundled pugixml
 rm -f src/include/pugixml.hpp \
diff --git a/oiio-1.5.11-unused.patch b/oiio-1.5.11-unused.patch
new file mode 100644
index 0000000..c24f1b0
--- /dev/null
+++ b/oiio-1.5.11-unused.patch
@@ -0,0 +1,12 @@
+diff -Naur oiio-Release-1.5.11.orig/src/ptex.imageio/ptex/PtexHalf.cpp oiio-Release-1.5.11/src/ptex.imageio/ptex/PtexHalf.cpp
+--- oiio-Release-1.5.11.orig/src/ptex.imageio/ptex/PtexHalf.cpp	2015-01-28 11:57:02.000000000 -0600
++++ oiio-Release-1.5.11/src/ptex.imageio/ptex/PtexHalf.cpp	2015-02-11 21:09:16.670289293 -0600
+@@ -80,7 +80,7 @@
+     return 1;
+ }
+ 
+-static bool PtexHalfInitialized = PtexHalfInit();
++bool PtexHalfInitialized = PtexHalfInit();
+ 
+ 
+ /** Handle exceptional cases for half-to-float conversion */