util: Move xxd.py to util

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7034>

src/compiler/SConscript.glsl

@@ -90,7 +90,7 @@ compiler_objs += mesa_objs
 # GLSL generated sources
 env.CodeGenerate(
     target = 'glsl/float64_glsl.h',
-    script = 'glsl/xxd.py',
+    script = '../util/xxd.py',
     source = ['glsl/float64.glsl'],
     command = python_cmd + ' $SCRIPT $SOURCE $TARGET -n float64_source',
 )

src/compiler/glsl/meson.build

@@ -55,7 +55,7 @@ ir_expression_operation_strings_h = custom_target(
 
 float64_glsl_h = custom_target(
   'float64_glsl.h',
-  input : ['xxd.py', 'float64.glsl'],
+  input : [files_xxd, 'float64.glsl'],
   output : 'float64_glsl.h',
   command : [prog_python, '@INPUT@', '@OUTPUT@', '-n', 'float64_source'],
 )

src/util/meson.build

@@ -224,6 +224,8 @@ idep_xmlconfig = declare_dependency(
   link_with : _libxmlconfig,
 )
 
+files_xxd = files('xxd.py')
+
 if with_tests
   # DRI_CONF macros use designated initializers (required for union
   # initializaiton), so we need c++2a since gtest forces us to use c++