Cleanup CMake setup

Author: chellmuth

CMakeLists.txt

@@ -140,9 +140,10 @@ if(SKBUILD)
 endif()
 
 if (MATERIALX_BUILD_GEN_OSL_NODES)
-  set(MATERIALX_BUILD_GEN_OSL ON)
-  set(MATERIALX_BUILD_RENDER ON)
-  set(MATERIALX_BUILD_RENDER_PLATFORMS ON)
+    set(MATERIALX_BUILD_DATA_LIBRARY ON)
+    set(MATERIALX_BUILD_GEN_OSL ON)
+    set(MATERIALX_BUILD_RENDER ON)
+    set(MATERIALX_BUILD_RENDER_PLATFORMS ON)
 endif()
 
 # Helpers for MDL validation
@@ -258,10 +259,6 @@ if (MATERIALX_BUILD_GEN_MDL)
     add_definitions(-DMATERIALX_INSTALL_MDL_MODULE_PATH=\"${MATERIALX_INSTALL_MDL_MODULE_PATH}\")
 endif()
 
-if (MATERIALX_BUILD_GEN_OSL_NODES)
-    set(MATERIALX_BUILD_DATA_LIBRARY ON)
-endif()
-
 # Adjust the default installation path
 if(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT)
     set(CMAKE_INSTALL_PREFIX "${PROJECT_BINARY_DIR}/installed" CACHE PATH "Default install path" FORCE)