MATERIALX_INSTALL_STDLIB_PATH can be used to control where the data library is installed, but this needs to be reflected in the exported cmake config file as well.

Author: ld-kerley

cmake/modules/MaterialXConfig.cmake.in

@@ -20,7 +20,7 @@ include("${CMAKE_CURRENT_LIST_DIR}/@CMAKE_PROJECT_NAME@Targets.cmake")
 # MATERIALX_RESOURCES_DIR    Path to MaterialX Resources (sample data, mtlx etc)
 
 set_and_check(MATERIALX_BASE_DIR "@PACKAGE_CMAKE_INSTALL_PREFIX@")
-set_and_check(MATERIALX_STDLIB_DIR "@PACKAGE_CMAKE_INSTALL_PREFIX@/libraries")
+set_and_check(MATERIALX_STDLIB_DIR "@PACKAGE_CMAKE_INSTALL_PREFIX@/@MATERIALX_INSTALL_STDLIB_PATH@")
 if(@MATERIALX_BUILD_PYTHON@ AND @MATERIALX_INSTALL_PYTHON@)
     set_and_check(MATERIALX_PYTHON_DIR "@PACKAGE_CMAKE_INSTALL_PREFIX@/python")
 endif()