From 7d793d883661380e2be2aac946293aaa60413c8c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tim-Philipp=20M=C3=BCller?= <tim@centricular.com>
Date: Tue, 10 Dec 2024 12:52:33 +0000
Subject: [PATCH] meson: unset GST_TRACERS for g-ir-scanner to avoid warnings

People might have GST_TRACERS=leaks set in their environment
by default, which will now trigger criticals during the build
when calling g-ir-scanner, because we unset GST_PLUGIN_SYSTEM_PATH
so that the scanner doesn't load any plugins.

Fixes #4093

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/8121>
---
 subprojects/gst-devtools/meson.build         | 1 +
 subprojects/gst-editing-services/meson.build | 1 +
 subprojects/gst-plugins-bad/meson.build      | 1 +
 subprojects/gst-plugins-base/meson.build     | 1 +
 subprojects/gst-rtsp-server/meson.build      | 1 +
 subprojects/gstreamer/meson.build            | 1 +
 6 files changed, 6 insertions(+)

diff --git a/subprojects/gst-devtools/meson.build b/subprojects/gst-devtools/meson.build
index 1964a32392..1403701ccf 100644
--- a/subprojects/gst-devtools/meson.build
+++ b/subprojects/gst-devtools/meson.build
@@ -109,6 +109,7 @@ gir_init_section = [ '--add-init-section=extern void gst_init(gint*,gchar**);' +
     'g_setenv("GST_REGISTRY_1.0", "/no/way/this/exists.reg", TRUE);' + \
     'g_setenv("GST_PLUGIN_PATH_1_0", "", TRUE);' + \
     'g_setenv("GST_PLUGIN_SYSTEM_PATH_1_0", "", TRUE);' + \
+    'g_setenv("GST_TRACERS", "", TRUE);' + \
     'gst_init(NULL,NULL);', '--quiet']
 gir = find_program('g-ir-scanner', required : get_option('introspection'))
 build_gir = gir.found() and (not meson.is_cross_build() or get_option('introspection').enabled())
diff --git a/subprojects/gst-editing-services/meson.build b/subprojects/gst-editing-services/meson.build
index e445571068..d0b843bfe9 100644
--- a/subprojects/gst-editing-services/meson.build
+++ b/subprojects/gst-editing-services/meson.build
@@ -141,6 +141,7 @@ gir_init_section = [ '--add-init-section=' + \
     'g_setenv("GST_PLUGIN_PATH_1_0", "", TRUE);' + \
     'g_setenv("GST_PLUGIN_SYSTEM_PATH_1_0", "", TRUE);' + \
     'g_setenv("GST_DEBUG", "0", TRUE);' + \
+    'g_setenv("GST_TRACERS", "", TRUE);' + \
     'gst_init(NULL,NULL);' + \
     'ges_init();', '--quiet']
 
diff --git a/subprojects/gst-plugins-bad/meson.build b/subprojects/gst-plugins-bad/meson.build
index ac6a430991..87c635f1de 100644
--- a/subprojects/gst-plugins-bad/meson.build
+++ b/subprojects/gst-plugins-bad/meson.build
@@ -538,6 +538,7 @@ gir_init_section = [ '--add-init-section=extern void gst_init(gint*,gchar**);' +
     'g_setenv("GST_REGISTRY_1.0", "@0@", TRUE);'.format(meson.current_build_dir() + '/gir_empty_registry.reg') + \
     'g_setenv("GST_PLUGIN_PATH_1_0", "", TRUE);' + \
     'g_setenv("GST_PLUGIN_SYSTEM_PATH_1_0", "", TRUE);' + \
+    'g_setenv("GST_TRACERS", "", TRUE);' + \
     'gst_init(NULL,NULL);', '--quiet']
 
 presetdir = join_paths(get_option('datadir'), 'gstreamer-' + api_version, 'presets')
diff --git a/subprojects/gst-plugins-base/meson.build b/subprojects/gst-plugins-base/meson.build
index 65d0944114..f2d2aacc0e 100644
--- a/subprojects/gst-plugins-base/meson.build
+++ b/subprojects/gst-plugins-base/meson.build
@@ -460,6 +460,7 @@ gir_init_section = [ '--add-init-section=extern void gst_init(gint*,gchar**);' +
     'g_setenv("GST_REGISTRY_1.0", "@0@", TRUE);'.format(meson.current_build_dir() + '/gir_empty_registry.reg') + \
     'g_setenv("GST_PLUGIN_PATH_1_0", "", TRUE);' + \
     'g_setenv("GST_PLUGIN_SYSTEM_PATH_1_0", "", TRUE);' + \
+    'g_setenv("GST_TRACERS", "", TRUE);' + \
     'gst_init(NULL,NULL);', '--quiet']
 
 pkgconfig = import('pkgconfig')
diff --git a/subprojects/gst-rtsp-server/meson.build b/subprojects/gst-rtsp-server/meson.build
index e17505c5b0..6990bb0fe6 100644
--- a/subprojects/gst-rtsp-server/meson.build
+++ b/subprojects/gst-rtsp-server/meson.build
@@ -179,6 +179,7 @@ gir_init_section = [ '--add-init-section=extern void gst_init(gint*,gchar**);' +
     'g_setenv("GST_REGISTRY_1.0", "@0@", TRUE);'.format(meson.current_build_dir() + '/gir_empty_registry.reg') + \
     'g_setenv("GST_PLUGIN_PATH_1_0", "", TRUE);' + \
     'g_setenv("GST_PLUGIN_SYSTEM_PATH_1_0", "", TRUE);' + \
+    'g_setenv("GST_TRACERS", "", TRUE);' + \
     'gst_init(NULL,NULL);', '--quiet']
 
 pkgconfig = import('pkgconfig')
diff --git a/subprojects/gstreamer/meson.build b/subprojects/gstreamer/meson.build
index 7edb712f78..308a3d2402 100644
--- a/subprojects/gstreamer/meson.build
+++ b/subprojects/gstreamer/meson.build
@@ -604,6 +604,7 @@ gir_init_section = [ '--add-init-section=extern void gst_init(gint*,gchar**);' +
     'g_setenv("GST_REGISTRY_1.0", "/no/way/this/exists.reg", TRUE);' + \
     'g_setenv("GST_PLUGIN_PATH_1_0", "", TRUE);' + \
     'g_setenv("GST_PLUGIN_SYSTEM_PATH_1_0", "", TRUE);' + \
+    'g_setenv("GST_TRACERS", "", TRUE);' + \
     'gst_init(NULL,NULL);', '--quiet']
 
 gst_c_args = ['-DHAVE_CONFIG_H']