From d3029ec0d606016f4d0ba15ea64812a12b607087 Mon Sep 17 00:00:00 2001
From: Mathieu Duponchelle <mathieu@centricular.com>
Date: Fri, 5 Apr 2019 15:27:37 +0200
Subject: [PATCH] add libnice as a top-level subproject.

When relying on a system-wide libnice, we end up not building
the nice elements, which means we can't use them, and by extension
webrtcbin, in the uninstalled environment.

This also introduces a way to avoid checking the version of
a given subproject, and makes use of it for libnice and pygobject,
which only passed the version check by chance, as its current
major version is 3.
---
 meson.build       | 12 ++++++++++--
 meson_options.txt |  1 +
 2 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/meson.build b/meson.build
index 426e8edff7..f0c7c410dd 100644
--- a/meson.build
+++ b/meson.build
@@ -35,6 +35,7 @@ subprojects = [
   ['gstreamer', {}],
   ['gst-plugins-base', {}],
   ['gst-plugins-good', {}],
+  ['libnice', { 'option': get_option('libnice'), 'match_gst_version': false}],
   ['gst-plugins-bad', { 'option': get_option('bad') }],
   ['gst-plugins-ugly', { 'option': get_option('ugly') }],
   ['gst-libav', { 'option': get_option('libav') }],
@@ -45,7 +46,7 @@ subprojects = [
   ['gstreamer-vaapi', { 'option': get_option('vaapi') }],
   ['gst-omx', { 'option': get_option('omx'), }],
   ['gstreamer-sharp', { 'option': get_option('sharp') }],
-  ['pygobject', { 'option': get_option('python') }],
+  ['pygobject', { 'option': get_option('python'), 'match_gst_version': false }],
   ['gst-python', { 'option': get_option('python') }],
 ]
 
@@ -69,7 +70,14 @@ foreach sp : subprojects
   project_name = sp[0]
   build_infos = sp[1]
   is_required = build_infos.get('option', true)
-  subproj = subproject(project_name, version: gst_version, required: is_required)
+  match_gst_version = build_infos.get('match_gst_version', true)
+
+  if match_gst_version
+    subproj = subproject(project_name, version: gst_version, required: is_required)
+  else
+    subproj = subproject(project_name, required: is_required)
+  endif
+
   if subproj.found()
     subprojects_names += [project_name]
     cmdres = run_command(python3, '-c', symlink.format(project_name, meson.current_source_dir()))
diff --git a/meson_options.txt b/meson_options.txt
index 0d36f6ebb5..624979b621 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -1,5 +1,6 @@
 option('python', type : 'feature', value : 'auto')
 option('libav', type : 'feature', value : 'auto')
+option('libnice', type : 'feature', value : 'auto')
 option('ugly', type : 'feature', value : 'auto')
 option('bad', type : 'feature', value : 'auto')
 option('devtools', type : 'feature', value : 'auto')