meson: Tell glslang to be quiet.

Without --quiet glslang unconditionally prints the input file name to stdout.
Check if --quiet is supported because some distros only have ancient glslang
versions.

Signed-off-by: Georg Lehmann <dadschoorse@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/16312>

meson.build

@@ -687,6 +687,11 @@ endif
 
 if with_vulkan_overlay_layer or with_aco_tests or with_amd_vk
   prog_glslang = find_program('glslangValidator')
+  if run_command(prog_glslang, [ '--quiet', '--version' ], check : false).returncode() == 0
+    glslang_quiet = ['--quiet']
+  else
+    glslang_quiet = []
+  endif
 endif
 
 _xvmc = get_option('gallium-xvmc')

src/amd/vulkan/radix_sort/shaders/meson.build

@@ -46,6 +46,6 @@ foreach s : radix_sort_shaders
     s + '.spv.h',
     input : s,
     output : s + '.spv.h',
-    command : [prog_glslang, '-V', '-I' + shader_include_dir, '--target-env', 'spirv1.3', '-x', '-o', '@OUTPUT@', '@INPUT@'],
+    command : [prog_glslang, '-V', '-I' + shader_include_dir, '--target-env', 'spirv1.3', '-x', '-o', '@OUTPUT@', '@INPUT@'] + glslang_quiet,
     depend_files: shader_include_files)
 endforeach

src/vulkan/overlay-layer/meson.build

@@ -26,7 +26,7 @@ overlay_spv = []
 foreach s : ['overlay.frag', 'overlay.vert']
   overlay_spv += custom_target(
     s + '.spv.h', input : s, output : s + '.spv.h',
-    command : [prog_glslang, '-V', '-x', '-o', '@OUTPUT@', '@INPUT@'])
+    command : [prog_glslang, '-V', '-x', '-o', '@OUTPUT@', '@INPUT@'] + glslang_quiet)
 endforeach
 
 vklayer_files = files(