From 76ee7475c09ecb46586800251c30cdf2dec90f6b Mon Sep 17 00:00:00 2001
From: Pierre Ossman <ossman@cendio.se>
Date: Wed, 24 Jan 2024 09:07:57 +0100
Subject: [PATCH] Make systemd detection more robust

We don't need to look for this on Windows or macOS, and we need to be
able to gracefully handle systems without pkg-config.
---
 CMakeLists.txt | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 6028fadf..f1bfd618 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -302,7 +302,12 @@ if(UNIX AND NOT APPLE)
 endif()
 
 # check for systemd support (socket activation)
-pkg_check_modules(LIBSYSTEMD libsystemd)
+if(UNIX AND NOT APPLE)
+  find_package(PkgConfig)
+  if (PKG_CONFIG_FOUND)
+    pkg_check_modules(LIBSYSTEMD libsystemd)
+  endif()
+endif()
 
 # Generate config.h and make sure the source finds it
 configure_file(config.h.in config.h)
-- 
2.39.5