https://gitlab.com/libosinfo/libosinfo/-/merge_requests/134

From 7148e47e84199d5ffeb695bcf064400b7fa0da77 Mon Sep 17 00:00:00 2001
From: Matt Turner <mattst88@gmail.com>
Date: Tue, 15 Feb 2022 12:22:00 -0800
Subject: [PATCH] build: Add option to disable libsoup3

... and fall back to libsoup2 if disabled. This allows distributions
that ship both versions to choose which version of libsoup will be
linked.

Signed-off-by: Matt Turner <mattst88@gmail.com>
---
 meson.build       | 2 +-
 meson_options.txt | 6 ++++++
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/meson.build b/meson.build
index a664402..4f1d2df 100644
--- a/meson.build
+++ b/meson.build
@@ -71,7 +71,7 @@ gio_dep = dependency('gio-2.0', version: glib_version_info)
 gobject_dep = dependency('gobject-2.0', version: glib_version_info)
 
 #  everything else
-libsoup_dep = dependency('libsoup-3.0', required: false)
+libsoup_dep = dependency('libsoup-3.0', required: get_option('libsoup3'))
 #    fallback to libsoup2
 if not libsoup_dep.found()
   libsoup_dep = dependency('libsoup-2.4')
diff --git a/meson_options.txt b/meson_options.txt
index 13fc358..2084677 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -24,6 +24,12 @@ option('enable-vala',
     description: 'Enable Vala bindings'
 )
 
+option('libsoup3',
+    type: 'feature',
+    value: 'enabled',
+    description: 'Whether to enable libsoup3'
+)
+
 option('with-pci-ids-path',
     type: 'string',
     value: '',
-- 
2.34.1