Fix tool on different platforms.

tools/assetstool/CMakeLists.txt

@@ -12,6 +12,9 @@ add_custom_target(dawnassets
     --input=${DAWN_ASSETS_BUILD_DIR}
     --output=${DAWN_BUILD_DIR}/dawn.tar
   COMMENT "Bundling assets..."
-    USES_TERMINAL
+  USES_TERMINAL
-    DEPENDS ${DAWN_ASSETS}
+  DEPENDS
+    ${DAWN_ASSETS}
+    ${DAWN_TOOLS_DIR}/assetstool/assetstool.py
+    ${Python3_EXECUTABLE}
 )

tools/assetstool/assetstool.py

@@ -1,4 +1,3 @@
-#!/usr/bin/env python
 # Copyright (c) 2023 Dominic Masters
 # 
 # This software is released under the MIT License.

tools/texturetool/CMakeLists.txt

@@ -1,6 +1,6 @@
-find_package(Python3 REQUIRED COMPONENTS Interpreter)
-
 function(tool_texture target file)
+  find_package(Python3 REQUIRED COMPONENTS Interpreter)
+
   # Defaults
   set(FILTER_MIN "")
   set(FILTER_MAG "")
@@ -25,9 +25,11 @@ function(tool_texture target file)
   if(NOT DEFINED file)
     message(FATAL_ERROR "Missing FILE input")
   endif()
-  
+
   add_custom_target(${target}_texture
-    COMMAND ${DAWN_TOOLS_DIR}/texturetool/texturetool.py
+    COMMAND
+      ${Python3_EXECUTABLE}
+      ${DAWN_TOOLS_DIR}/texturetool/texturetool.py
       --input="${DAWN_ASSETS_SOURCE_DIR}/${file}"
       --output="${DAWN_ASSETS_BUILD_DIR}/${target}.texture"
       --wrap-x="${WRAP_X}"
@@ -39,7 +41,14 @@ function(tool_texture target file)
       --crop-start-y="${CROP_START_Y}"
       --crop-end-x="${CROP_END_X}"
       --crop-end-y="${CROP_END_Y}"
-    COMMENT "Generating texture ${target} from ${FILE}"
+    COMMENT
+      "Generating texture ${target} from ${FILE}"
+    DEPENDS
+      ${DAWN_TOOLS_DIR}/texturetool/texturetool.py
+      ${DAWN_ASSETS_SOURCE_DIR}/${file}
+      ${Python3_EXECUTABLE}
+    USES_TERMINAL
+
   )
   add_dependencies(dawnassets ${target}_texture)
 endfunction()

tools/texturetool/texturetool.py

@@ -1,9 +1,9 @@
-#!/usr/bin/env python
 # Copyright (c) 2023 Dominic Masters
 # 
 # This software is released under the MIT License.
 # https://opensource.org/licenses/MIT
 
+
 from PIL import Image
 import argparse
 import os