[Bf-blender-cvs] [ecc61b4f026] tmp_libupdate_34: deps/windows: add backport USD 20.08 patch for openvdb

[Ray Molenkamp]

Commit: ecc61b4f026dd7dd25544bc371ffb9fd2ae4977a
Author: Ray Molenkamp
Date:   Wed Aug 24 15:02:23 2022 -0600
Branches: tmp_libupdate_34
https://developer.blender.org/rBecc61b4f026dd7dd25544bc371ffb9fd2ae4977a

deps/windows: add backport USD 20.08 patch for openvdb

code that uses OpenVDB needs _USE_MATH_DEFINES defined
or it will have build errors on windows.

Based on https://github.com/PixarAnimationStudios/USD/commit/33fd2b05117fda0c908a450d527d6d5db122f1cc

===================================================================

M	build_files/build_environment/patches/usd.diff

===================================================================

diff --git a/build_files/build_environment/patches/usd.diff b/build_files/build_environment/patches/usd.diff
index f627d2726ab..881d856ca25 100644
--- a/build_files/build_environment/patches/usd.diff
+++ b/build_files/build_environment/patches/usd.diff
@@ -127,3 +127,20 @@ diff -Naur orig/cmake/macros/Private.cmake external_usd/cmake/macros/Private.cma
          set(LIBRARY_NAME "_${NAME}_d")
      else()
          set(LIBRARY_NAME "_${NAME}")
+diff --git a/pxr/imaging/hioOpenVDB/CMakeLists.txt b/pxr/imaging/hioOpenVDB/CMakeLists.txt
+index e3db1d1319..2a2dfd5e72 100644
+--- a/pxr/imaging/hioOpenVDB/CMakeLists.txt
++++ b/pxr/imaging/hioOpenVDB/CMakeLists.txt
+@@ -7,6 +7,12 @@ if (NOT ${PXR_BUILD_GPU_SUPPORT})
+     return()
+ endif()
+ 
++if (WIN32)
++    # OpenVDB uses constants from <cmath> that aren't available on
++    # Windows unless this is defined.
++    add_definitions(-D_USE_MATH_DEFINES)
++endif()
++
+ pxr_library(hioOpenVDB
+     LIBRARIES
+         ar
\ No newline at end of file