From 5358a888e3de20a4f43c0f27974affd17bf25da0 Mon Sep 17 00:00:00 2001
From: Dale Glass <dale@daleglass.net>
Date: Wed, 6 Dec 2023 03:29:00 -0800
Subject: [PATCH] Fix OpenEXR on Windows

Prevents:
LNK2001	unresolved external symbol imath_half_to_float_table
---
 cmake/macros/TargetOpenEXR.cmake | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/cmake/macros/TargetOpenEXR.cmake b/cmake/macros/TargetOpenEXR.cmake
index 8acd629119..29a1cd77a0 100644
--- a/cmake/macros/TargetOpenEXR.cmake
+++ b/cmake/macros/TargetOpenEXR.cmake
@@ -79,5 +79,11 @@ macro(TARGET_OPENEXR)
         select_library_configurations(OPENEXR)
         target_link_libraries(${TARGET_NAME} ${OPENEXR_LIBRARY})
         target_include_directories(${TARGET_NAME} PUBLIC "${VCPKG_INSTALL_ROOT}/include/Imath")
+
+        # This prevents:
+        # LNK2001	unresolved external symbol imath_half_to_float_table
+        #
+        # Apparently something changed in newer versions.
+        target_compile_definitions(${TARGET_NAME} PUBLIC IMATH_HALF_NO_LOOKUP_TABLE)
     endif()
 endmacro()