meson: generate shader headers

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
diff --git a/meson.build b/meson.build
index e8df2a6..2fb209b 100644
--- a/meson.build
+++ b/meson.build
@@ -159,6 +159,7 @@
 # Generators
 
 genh = []
+shaderinclude = find_program('scripts/shaderinclude.pl')
 qapi_gen = find_program('scripts/qapi-gen.py')
 qapi_gen_depends = [ meson.source_root() / 'scripts/qapi/__init__.py',
                      meson.source_root() / 'scripts/qapi/commands.py',