From 8eb9e535a3514a7d9254819f499dcb169c56b51e Mon Sep 17 00:00:00 2001
From: Florent Le Coz <louiz@louiz.org>
Date: Fri, 30 May 2014 13:12:33 +0200
Subject: Use pkg-config first to find libraries

---
 cmake/Modules/FindLibidn.cmake        | 31 ++++++++++++++++++-------------
 cmake/Modules/FindSystemdDaemon.cmake | 27 ++++++++++++++++-----------
 2 files changed, 34 insertions(+), 24 deletions(-)

diff --git a/cmake/Modules/FindLibidn.cmake b/cmake/Modules/FindLibidn.cmake
index 5434127..611a6a8 100644
--- a/cmake/Modules/FindLibidn.cmake
+++ b/cmake/Modules/FindLibidn.cmake
@@ -15,22 +15,27 @@
 #
 # This file is in the public domain
 
-find_path(LIBIDN_INCLUDE_DIRS NAMES stringprep.h
-  DOC "The libidn include directory")
+include(FindPkgConfig)
+pkg_check_modules(LIBIDN libidn)
 
-# The library containing the stringprep module is libidn
-find_library(LIBIDN_LIBRARIES NAMES idn
-  DOC "The libidn library")
+if(NOT LIBIDN_FOUND)
+  find_path(LIBIDN_INCLUDE_DIRS NAMES stringprep.h
+    DOC "The libidn include directory")
 
-# Use some standard module to handle the QUIETLY and REQUIRED arguments, and
-# set LIBIDN_FOUND to TRUE if these two variables are set.
-include(FindPackageHandleStandardArgs)
-find_package_handle_standard_args(Libidn REQUIRED_VARS LIBIDN_LIBRARIES LIBIDN_INCLUDE_DIRS)
+  # The library containing the stringprep module is libidn
+  find_library(LIBIDN_LIBRARIES NAMES idn
+    DOC "The libidn library")
 
-# Compatibility for all the ways of writing these variables
-if(LIBIDN_FOUND)
-  set(LIBIDN_INCLUDE_DIR ${LIBIDN_INCLUDE_DIRS})
-  set(LIBIDN_LIBRARY ${LIBIDN_LIBRARIES})
+  # Use some standard module to handle the QUIETLY and REQUIRED arguments, and
+  # set LIBIDN_FOUND to TRUE if these two variables are set.
+  include(FindPackageHandleStandardArgs)
+  find_package_handle_standard_args(LIBIDN REQUIRED_VARS LIBIDN_LIBRARIES LIBIDN_INCLUDE_DIRS)
+
+  # Compatibility for all the ways of writing these variables
+  if(LIBIDN_FOUND)
+    set(LIBIDN_INCLUDE_DIR ${LIBIDN_INCLUDE_DIRS})
+    set(LIBIDN_LIBRARY ${LIBIDN_LIBRARIES})
+  endif()
 endif()
 
 mark_as_advanced(LIBIDN_INCLUDE_DIRS LIBIDN_LIBRARIES)
\ No newline at end of file
diff --git a/cmake/Modules/FindSystemdDaemon.cmake b/cmake/Modules/FindSystemdDaemon.cmake
index 441ac47..9492bf2 100644
--- a/cmake/Modules/FindSystemdDaemon.cmake
+++ b/cmake/Modules/FindSystemdDaemon.cmake
@@ -15,20 +15,25 @@
 #
 # This file is in the public domain
 
-find_path(SYSTEMDDAEMON_INCLUDE_DIRS NAMES systemd/sd-daemon.h
-  DOC "The Systemd Daemon include directory")
+include(FindPkgConfig)
+pkg_check_modules(SYSTEMDDAEMON libsystemd-daemon)
 
-find_library(SYSTEMDDAEMON_LIBRARIES NAMES systemd
-  DOC "The Systemd Daemon library")
+if(NOT SYSTEMDDAEMON_FOUND)
+  find_path(SYSTEMDDAEMON_INCLUDE_DIRS NAMES systemd/sd-daemon.h
+    DOC "The Systemd Daemon include directory")
 
-# Use some standard module to handle the QUIETLY and REQUIRED arguments, and
-# set SYSTEMDDAEMON_FOUND to TRUE if these two variables are set.
-include(FindPackageHandleStandardArgs)
-find_package_handle_standard_args(SystemdDaemon REQUIRED_VARS SYSTEMDDAEMON_LIBRARIES SYSTEMDDAEMON_INCLUDE_DIRS)
+  find_library(SYSTEMDDAEMON_LIBRARIES NAMES systemd-daemon systemd
+    DOC "The Systemd Daemon library")
 
-if(SYSTEMDDAEMON_FOUND)
-  set(SYSTEMDDAEMON_LIBRARY ${SYSTEMDDAEMON_LIBRARIES})
-  set(SYSTEMDDAEMON_INCLUDE_DIR ${SYSTEMDDAEMON_INCLUDE_DIRS})
+  # Use some standard module to handle the QUIETLY and REQUIRED arguments, and
+  # set SYSTEMDDAEMON_FOUND to TRUE if these two variables are set.
+  include(FindPackageHandleStandardArgs)
+  find_package_handle_standard_args(SYSTEMDDAEMON REQUIRED_VARS SYSTEMDDAEMON_LIBRARIES SYSTEMDDAEMON_INCLUDE_DIRS)
+
+  if(SYSTEMDDAEMON_FOUND)
+    set(SYSTEMDDAEMON_LIBRARY ${SYSTEMDDAEMON_LIBRARIES})
+    set(SYSTEMDDAEMON_INCLUDE_DIR ${SYSTEMDDAEMON_INCLUDE_DIRS})
+  endif()
 endif()
 
 mark_as_advanced(SYSTEMDDAEMON_INCLUDE_DIRS SYSTEMDDAEMON_LIBRARIES)
\ No newline at end of file
-- 
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