diff --git a/CMakeLists.txt b/CMakeLists.txt
index 2ad96a4..c02762c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -62,6 +62,19 @@ find_package(Log4cplus REQUIRED)
 find_package(Python COMPONENTS Interpreter Development)
 find_package(TBB REQUIRED)
 
+# Houdini's macOS Python framework records its install name as @rpath/Python,
+# even when CMake finds it through the libpython compatibility path.  Embed the
+# framework root so Python extension modules can be loaded by build-time tools.
+if(APPLE AND TARGET Python::Python)
+    get_target_property(_python_library Python::Python IMPORTED_LOCATION_RELEASE)
+    if(NOT _python_library)
+        get_target_property(_python_library Python::Python IMPORTED_LOCATION)
+    endif()
+    if(_python_library MATCHES "^(.+\\.framework)/")
+        set(_python_framework_rpath "${CMAKE_MATCH_1}")
+    endif()
+endif()
+
 find_program(LUA_BIN_LUAC
     NAMES luac
     HINTS $ENV{LUA_DIR}/bin)
@@ -71,8 +84,11 @@ find_program(LUA_BIN_LUA
     HINTS $ENV{LUA_DIR}/bin)
 
 # Set the RPATH for binaries in the install tree
-set(CMAKE_BUILD_RPATH ${COMPILER_LIBRARY_DIR})
+set(CMAKE_BUILD_RPATH ${COMPILER_LIBRARY_DIR} ${_python_framework_rpath})
 set(CMAKE_INSTALL_RPATH ${GLOBAL_INSTALL_RPATH})
+if(_python_framework_rpath)
+    list(APPEND CMAKE_INSTALL_RPATH ${_python_framework_rpath})
+endif()
 set(CMAKE_INSTALL_RPATH_USE_LINK_PATH TRUE)
 
 # if OPT_LEVEL is set use its value to override the CMAKE_BUILD_TYPE because the
@@ -158,4 +174,3 @@ install(
     DESTINATION
         ${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME}-${PROJECT_VERSION}
 )
-
diff --git a/cmake/SceneRdl2CompileOptions.cmake b/cmake/SceneRdl2CompileOptions.cmake
index 4d98ec6..44ecdae 100644
--- a/cmake/SceneRdl2CompileOptions.cmake
+++ b/cmake/SceneRdl2CompileOptions.cmake
@@ -57,7 +57,6 @@ function(SceneRdl2_cxx_compile_options target)
     elseif (CMAKE_CXX_COMPILER_ID STREQUAL AppleClang)
         target_compile_options(${target}
             PUBLIC
-                -Wno-gnu-alignof-expression
         )
     elseif (CMAKE_CXX_COMPILER_ID STREQUAL Intel)
         target_compile_options(${target}
diff --git a/lib/scene/rdl2/CMakeLists.txt b/lib/scene/rdl2/CMakeLists.txt
index 31aeaef..9758a80 100644
--- a/lib/scene/rdl2/CMakeLists.txt
+++ b/lib/scene/rdl2/CMakeLists.txt
@@ -202,7 +202,7 @@ add_executable(rdl2_ispc_util)
 target_sources(rdl2_ispc_util PRIVATE rdl2_ispc_util/rdl2_ispc_util.cc)
 target_link_libraries(rdl2_ispc_util PRIVATE scene_rdl2_tmp)
 if (IsDarwinPlatform)
-    add_custom_command(TARGET rdl2_ispc_util POST_BUILD COMMAND /usr/bin/codesign -s - -f -o linker-signed */rdl2_ispc_util)
+    add_custom_command(TARGET rdl2_ispc_util POST_BUILD COMMAND /usr/bin/codesign -s - -f -o linker-signed $<TARGET_FILE:rdl2_ispc_util>)
 endif()
 
 # Set standard compile/link options