From e10a4809f12f17d6ceebdcf9205ef93d0fda45a0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sl=C3=A1vek=20Banko?= <slavek.banko@axis.cz>
Date: Sun, 8 Sep 2013 01:31:01 +0200
Subject: [PATCH] Fix tdesu backend check in CMake This relates to Bug 1655
 (cherry picked from commit 11b5fd8f08aa59fdfed395d7e6de0aa6914fb021)

---
 CMakeLists.txt | 29 ++++++++++-------------------
 1 file changed, 10 insertions(+), 19 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 0832deb2e..0d0b270b3 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -438,26 +438,17 @@ set( CMAKE_REQUIRED_LIBRARIES ${bak_CMAKE_REQUIRED_LIBRARIES} )
 unset( bak_CMAKE_REQUIRED_LIBRARIES )
 
 
-# FIXME for unknown reason cmake cannot find su
-#find_program( __PATH_SU su )
-set( __PATH_SU "/bin/su" )
-
-if( __PATH_SU )
-  set( DEFAULT_SUPER_USER_COMMAND ${__PATH_SU} )
-else( __PATH_SU )
-  message( STATUS "WARNING: su was not found" )
-endif( __PATH_SU )
-
-# FIXME for unknown reason cmake cannot find sudo
-# find_program( __PATH_SUDO "sudo" )
-set( __PATH_SUDO "/usr/bin/sudo" )
+#### set kdesu backend ##########################
+
 if( WITH_SUDO_KDESU_BACKEND )
-  if( __PATH_SUDO )
-    set( DEFAULT_SUPER_USER_COMMAND ${__PATH_SUDO} )
-  else( __PATH_SUDO )
-    message( FATAL_ERROR "sudo was chosen as kdesu backend, but was not found in path." )
-  endif( __PATH_SUDO )
-endif( WITH_SUDO_KDESU_BACKEND )
+  set( DEFAULT_SUPER_USER_COMMAND sudo CACHE INTERNAL "" FORCE )
+else()
+  set( DEFAULT_SUPER_USER_COMMAND su CACHE INTERNAL "" FORCE )
+endif()
+find_file( KDESU_BACKEND ${DEFAULT_SUPER_USER_COMMAND} PATHS ENV PATH )
+if( KDESU_BACKEND-NOTFOUND )
+  tde_message_fatal( "${DEFAULT_SUPER_USER_COMMAND} was chosen as kdesu backend, but was not found in path." )
+endif( KDESU_BACKEND-NOTFOUND )
 
 
 #### set some constants #########################