Source: Arch, https://github.com/archlinux/svntogit-community/blob/packages/openscenegraph/trunk/openscenegraph-openexr3.patch
Upstream: Reported, https://github.com/openscenegraph/OpenSceneGraph/issues/1075
Reason: Fix build with OpenEXR >= 3

diff --git a/CMakeModules/FindOpenEXR.cmake b/CMakeModules/FindOpenEXR.cmake
index 233be972b..d1b022881 100644
--- a/CMakeModules/FindOpenEXR.cmake
+++ b/CMakeModules/FindOpenEXR.cmake
@@ -51,11 +51,11 @@ MACRO(OPENEXR_FIND libname)
     OPENEXR_FIND_VAR(OPENEXR_${libname}_LIBRARY_DEBUG ${libname}d)
 ENDMACRO(OPENEXR_FIND)
 
-OPENEXR_FIND(IlmImf)
+OPENEXR_FIND(OpenEXR)
 
 SET(OPENEXR_FOUND "NO")
-IF(OPENEXR_INCLUDE_DIR AND OPENEXR_IlmImf_LIBRARY)
-    SET(OPENEXR_LIBRARIES ${OPENEXR_IlmImf_LIBRARY} )
-    SET(OPENEXR_LIBRARIES_VARS OPENEXR_IlmImf_LIBRARY )
+IF(OPENEXR_INCLUDE_DIR AND OPENEXR_OpenEXR_LIBRARY)
+    SET(OPENEXR_LIBRARIES ${OPENEXR_OpenEXR_LIBRARY} )
+    SET(OPENEXR_LIBRARIES_VARS OPENEXR_OpenEXR_LIBRARY )
     SET(OPENEXR_FOUND "YES")
-ENDIF(OPENEXR_INCLUDE_DIR AND OPENEXR_IlmImf_LIBRARY)
+ENDIF(OPENEXR_INCLUDE_DIR AND OPENEXR_OpenEXR_LIBRARY)
diff --git a/CMakeModules/Findilmbase.cmake b/CMakeModules/Findilmbase.cmake
index 4b076c7c9..4610497fa 100644
--- a/CMakeModules/Findilmbase.cmake
+++ b/CMakeModules/Findilmbase.cmake
@@ -10,7 +10,7 @@
 # Created by Robert Osfield. 
 
 
-FIND_PATH(ILMBASE_INCLUDE_DIR OpenEXR/ImathVec.h
+FIND_PATH(ILMBASE_INCLUDE_DIR Imath/ImathVec.h
     $ENV{ILMBASE_DIR}/include
     $ENV{ILMBASE_DIR}
     ~/Library/Frameworks
@@ -28,7 +28,7 @@ FIND_PATH(ILMBASE_INCLUDE_DIR OpenEXR/ImathVec.h
 # example: ILMBASE_FIND_VAR(OPENEXR_IlmThread_LIBRARY IlmThread)
 MACRO(ILMBASE_FIND_VAR varname libname)
     FIND_LIBRARY( ${varname}
-        NAMES ${libname} ${libname}-2_1 ${libname}-2_2
+        NAMES ${libname} ${libname}-2_1 ${libname}-2_2 ${libname}-3_0
         PATHS
         $ENV{ILMBASE_DIR}/lib
         $ENV{ILMBASE_DIR}
@@ -53,11 +53,11 @@ ENDMACRO(ILMBASE_FIND)
 
 ILMBASE_FIND(IlmThread)
 ILMBASE_FIND(Iex)
-ILMBASE_FIND(Half)
+ILMBASE_FIND(Imath)
 
 SET(ILMBASE_FOUND "NO")
-IF(ILMBASE_INCLUDE_DIR AND ILMBASE_IlmThread_LIBRARY AND ILMBASE_Iex_LIBRARY AND ILMBASE_Half_LIBRARY)
-    SET(ILMBASE_LIBRARIES ${ILMBASE_IlmThread_LIBRARY} ${ILMBASE_Half_LIBRARY} ${ILMBASE_Iex_LIBRARY} )
-    SET(ILMBASE_LIBRARIES_VARS ILMBASE_IlmThread_LIBRARY ILMBASE_Half_LIBRARY ILMBASE_Iex_LIBRARY )
+IF(ILMBASE_INCLUDE_DIR AND ILMBASE_IlmThread_LIBRARY AND ILMBASE_Iex_LIBRARY AND ILMBASE_Imath_LIBRARY)
+    SET(ILMBASE_LIBRARIES ${ILMBASE_IlmThread_LIBRARY} ${ILMBASE_Imath_LIBRARY} ${ILMBASE_Iex_LIBRARY} )
+    SET(ILMBASE_LIBRARIES_VARS ILMBASE_IlmThread_LIBRARY ILMBASE_Imath_LIBRARY ILMBASE_Iex_LIBRARY )
     SET(ILMBASE_FOUND "YES")
-ENDIF(ILMBASE_INCLUDE_DIR AND ILMBASE_IlmThread_LIBRARY AND ILMBASE_Iex_LIBRARY AND ILMBASE_Half_LIBRARY)
+ENDIF(ILMBASE_INCLUDE_DIR AND ILMBASE_IlmThread_LIBRARY AND ILMBASE_Iex_LIBRARY AND ILMBASE_Imath_LIBRARY)
diff --git a/src/osgPlugins/exr/CMakeLists.txt b/src/osgPlugins/exr/CMakeLists.txt
index 6191ed18f..9a368b2c2 100644
--- a/src/osgPlugins/exr/CMakeLists.txt
+++ b/src/osgPlugins/exr/CMakeLists.txt
@@ -1,4 +1,4 @@
-INCLUDE_DIRECTORIES( ${ILMBASE_INCLUDE_DIR}/OpenEXR )
+INCLUDE_DIRECTORIES( ${ILMBASE_INCLUDE_DIR}/Imath )
 INCLUDE_DIRECTORIES( ${OPENEXR_INCLUDE_DIR}/OpenEXR )
 
 SET(TARGET_SRC ReaderWriterEXR.cpp )
diff --git a/src/osgPlugins/exr/ReaderWriterEXR.cpp b/src/osgPlugins/exr/ReaderWriterEXR.cpp
index 7132e97f8..96c5507ef 100644
--- a/src/osgPlugins/exr/ReaderWriterEXR.cpp
+++ b/src/osgPlugins/exr/ReaderWriterEXR.cpp
@@ -13,6 +13,7 @@
 #include <osgDB/FileNameUtils>
 #include <osgDB/FileUtils>
 
+#include <ImfInt64.h>
 #include <ImfRgbaFile.h>
 #include <ImfIO.h>
 #include <ImfArray.h>