From 6655b835b9d6569635832a74b156203eb8edd90f Mon Sep 17 00:00:00 2001
From: Ivailo Monev <xakepa10@gmail.com>
Date: Fri, 1 Apr 2022 16:22:59 +0300
Subject: [PATCH] cmake: add LightDM module

Signed-off-by: Ivailo Monev <xakepa10@gmail.com>
---
 cmake/modules/CMakeLists.txt    |  1 +
 cmake/modules/FindLightDM.cmake | 42 +++++++++++++++++++++++++++++++++
 2 files changed, 43 insertions(+)
 create mode 100644 cmake/modules/FindLightDM.cmake

diff --git a/cmake/modules/CMakeLists.txt b/cmake/modules/CMakeLists.txt
index 28b8eebf..2f8b46b7 100644
--- a/cmake/modules/CMakeLists.txt
+++ b/cmake/modules/CMakeLists.txt
@@ -50,6 +50,7 @@ set(cmakeFiles
     FindLibSSH.cmake
     FindLibTorrent.cmake
     FindLibVNCServer.cmake
+    FindLightDM.cmake
     FindMPFR.cmake
     FindMtp.cmake
     FindNetworkManager.cmake
diff --git a/cmake/modules/FindLightDM.cmake b/cmake/modules/FindLightDM.cmake
new file mode 100644
index 00000000..efbe782b
--- /dev/null
+++ b/cmake/modules/FindLightDM.cmake
@@ -0,0 +1,42 @@
+# Try to find LightDM library, once done this will define:
+#
+#  LIGHTDM_FOUND - system has LightDM
+#  LIGHTDM_INCLUDE_DIR - the LightDM include directory
+#  LIGHTDM_LIBRARIES - the libraries needed to use LightDM
+#  LIGHTDM_DEFINITIONS - compiler switches required for using LightDM
+#
+# Copyright (c) 2022 Ivailo Monev <xakepa10@gmail.com>
+#
+# Redistribution and use is allowed according to the terms of the BSD license.
+# For details see the accompanying COPYING-CMAKE-SCRIPTS file.
+
+if(NOT WIN32)
+    include(FindPkgConfig)
+    pkg_check_modules(PC_LIGHTDM QUIET liblightdm-gobject-1)
+
+    set(LIGHTDM_INCLUDE_DIR ${PC_LIGHTDM_INCLUDE_DIRS})
+    set(LIGHTDM_LIBRARIES ${PC_LIGHTDM_LIBRARIES})
+endif()
+
+set(LIGHTDM_VERSION ${PC_LIGHTDM_VERSION})
+set(LIGHTDM_DEFINITIONS ${PC_LIGHTDM_CFLAGS_OTHER})
+
+if(NOT LIGHTDM_INCLUDE_DIR OR NOT LIGHTDM_LIBRARIES)
+    find_path(LIGHTDM_INCLUDE_DIR
+        NAMES lightdm-gobject-1/lightdm.h
+        HINTS $ENV{LIGHTDMDIR}/include
+    )
+
+    find_library(LIGHTDM_LIBRARIES
+        NAMES lightdm-gobject-1
+        HINTS $ENV{LIGHTDMDIR}/lib
+    )
+endif()
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(LightDM
+    VERSION_VAR LIGHTDM_VERSION
+    REQUIRED_VARS LIGHTDM_LIBRARIES LIGHTDM_INCLUDE_DIR
+)
+
+mark_as_advanced(LIGHTDM_INCLUDE_DIR LIGHTDM_LIBRARIES)