From 2b9d79b12effd52621cc27991d2c9ead4cf64b1c Mon Sep 17 00:00:00 2001
From: "Robert T. McGibbon" <rmcgibbo@gmail.com>
Date: Mon, 10 May 2021 17:31:35 -0400
Subject: [PATCH] librealsense2: 2.43.0 -> 2.45.0

---
 .../libraries/librealsense/default.nix        |  7 ++--
 .../py_pybind11_no_external_download.patch    | 39 +++++++++++++++++++
 2 files changed, 43 insertions(+), 3 deletions(-)
 create mode 100644 pkgs/development/libraries/librealsense/py_pybind11_no_external_download.patch

diff --git a/pkgs/development/libraries/librealsense/default.nix b/pkgs/development/libraries/librealsense/default.nix
index 6607a4d00fb6..4015ab02a3a8 100644
--- a/pkgs/development/libraries/librealsense/default.nix
+++ b/pkgs/development/libraries/librealsense/default.nix
@@ -7,7 +7,7 @@ assert enablePython -> pythonPackages != null;
 
 stdenv.mkDerivation rec {
   pname = "librealsense";
-  version = "2.43.0";
+  version = "2.45.0";
 
   outputs = [ "out" "dev" ];
 
@@ -15,17 +15,18 @@ stdenv.mkDerivation rec {
     owner = "IntelRealSense";
     repo = pname;
     rev = "v${version}";
-    sha256 = "sha256-N7EvpcJjtK3INHK7PgoiEVIMq9zGcHKMeI+/dwZ3bNs=";
+    sha256 = "0aqf48zl7825v7x8c3x5w4d17m4qq377f1mn6xyqzf9b0dnk4i1j";
   };
 
   buildInputs = [
     libusb1
     gcc.cc.lib
   ] ++ lib.optional cudaSupport cudatoolkit
-    ++ lib.optional enablePython pythonPackages.python;
+    ++ lib.optionals enablePython (with pythonPackages; [python pybind11 ]);
 
   patches = lib.optionals enablePython [
     ./py_sitepackage_dir.patch
+    ./py_pybind11_no_external_download.patch
   ];
 
   nativeBuildInputs = [
diff --git a/pkgs/development/libraries/librealsense/py_pybind11_no_external_download.patch b/pkgs/development/libraries/librealsense/py_pybind11_no_external_download.patch
new file mode 100644
index 000000000000..2b48edb62e37
--- /dev/null
+++ b/pkgs/development/libraries/librealsense/py_pybind11_no_external_download.patch
@@ -0,0 +1,39 @@
+From 01e51b9c90ba51b2d0ca797dde676812cf3db415 Mon Sep 17 00:00:00 2001
+From: "Robert T. McGibbon" <rmcgibbo@gmail.com>
+Date: Mon, 10 May 2021 17:26:04 -0400
+Subject: [PATCH 1/1] V1
+
+---
+ wrappers/python/CMakeLists.txt | 15 +--------------
+ 1 file changed, 1 insertion(+), 14 deletions(-)
+
+diff --git a/wrappers/python/CMakeLists.txt b/wrappers/python/CMakeLists.txt
+index aa83e4c77..4ec92ccfa 100644
+--- a/wrappers/python/CMakeLists.txt
++++ b/wrappers/python/CMakeLists.txt
+@@ -8,21 +8,8 @@ if (NOT BUILD_PYTHON_BINDINGS)
+ endif()
+ 
+ set(DEPENDENCIES realsense2)
+-# In order for the external project clone to occur during cmake configure step(rather than during compilation, as would normally happen),
+-# we copy the external project declaration to the build folder and then execute it
+-configure_file(${CMAKE_SOURCE_DIR}/third-party/pybind11/CMakeLists.txt ${CMAKE_BINARY_DIR}/external-projects/pybind11/CMakeLists.txt)
+-execute_process(COMMAND "${CMAKE_COMMAND}" -G "${CMAKE_GENERATOR}" .
+-    WORKING_DIRECTORY "${CMAKE_BINARY_DIR}/external-projects/pybind11"
+-)
+-execute_process(COMMAND "${CMAKE_COMMAND}" --build .
+-    WORKING_DIRECTORY "${CMAKE_BINARY_DIR}/external-projects/pybind11"
+-)
+ 
+-# Add pybind11 makefile
+-add_subdirectory("${CMAKE_BINARY_DIR}/third-party/pybind11"
+-                 "${CMAKE_BINARY_DIR}/third-party/pybind11"
+-                 EXCLUDE_FROM_ALL
+-)
++find_package(pybind11 REQUIRED)
+ 
+ set(PYBIND11_CPP_STANDARD -std=c++11)
+ # Force Pybind11 not to share pyrealsense2 resources with other pybind modules.
+-- 
+2.29.3
+