Compat for Mir 2.25, where mirrenderer was merged into mirplatform.
https://github.com/miracle-wm-org/miracle-wm/commit/aaae6e64261d8a00c2a1df47e2eab99400382d69
From: Matthew Kosarek <matthew@matthewkosarek.xyz>
Date: Tue, 9 Dec 2025 10:41:43 -0500
Subject: [PATCH] bugfix: only install libmirrenderer-dev if it is available
 (#734)

--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -90,7 +90,7 @@ find_package(PkgConfig)
 
 set(MIR_MINIMUM_VERSION 2.18)
 pkg_check_modules(MIRAL REQUIRED miral>=5.1)
-pkg_check_modules(MIRRENDERER REQUIRED mirrenderer>=${MIR_MINIMUM_VERSION})
+pkg_check_modules(MIRRENDERER mirrenderer>=${MIR_MINIMUM_VERSION})
 pkg_check_modules(MIRPLATFORM REQUIRED mirplatform>=${MIR_MINIMUM_VERSION})
 pkg_check_modules(MIRCOMMON REQUIRED mircommon>=${MIR_MINIMUM_VERSION})
 pkg_check_modules(MIRCOMMON_INTERNAL REQUIRED mircommon-internal>=${MIR_MINIMUM_VERSION})