From eb6f6c1976133f5a7fb65c445784550967836229 Mon Sep 17 00:00:00 2001
From: Matt Turner <mattst88@gmail.com>
Date: Mon, 4 Aug 2025 17:31:00 +0000
Subject: [PATCH] meson: Allow controlling perfetto fallback

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/36561>
---
 meson.build   | 6 +++++-
 meson.options | 4 ++--
 2 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/meson.build b/meson.build
index aa485a262f5..4351e1c711e 100644
--- a/meson.build
+++ b/meson.build
@@ -2164,11 +2164,15 @@ else
   pre_args += '-DCUSTOM_SHADER_REPLACEMENT'
 endif
 
+allow_fallback_for_perfetto = get_option('allow-fallback-for').contains('perfetto')
 with_perfetto = get_option('perfetto')
 with_datasources = get_option('datasources')
 with_any_datasource = with_datasources.length() != 0
 if with_perfetto
-  dep_perfetto = dependency('perfetto', fallback: ['perfetto', 'dep_perfetto'])
+  dep_perfetto = dependency(
+      'perfetto',
+      fallback: allow_fallback_for_perfetto ? ['perfetto', 'dep_perfetto'] : [],
+  )
   pre_args += '-DHAVE_PERFETTO'
 endif
 
diff --git a/meson.options b/meson.options
index c28321c25aa..1e394aade9a 100644
--- a/meson.options
+++ b/meson.options
@@ -832,9 +832,9 @@ option(
 option(
   'allow-fallback-for',
   type : 'array',
-  value : [],
+  value : ['perfetto'],
   choices : [
-    'libdrm',
+    'libdrm', 'perfetto',
   ],
   description : 'Allows the fallback mechanism if the dependency is not available on the system, or too old.'
 )