Add conditionnal inotify support

Thanks to Francois Andriot
(cherry picked from commit af8d937e62)

CMakeLists.txt

@@ -54,6 +54,7 @@ option( WITH_NJB "Enable njb support" OFF )
 option( WITH_MTP "Enable mtp support" OFF )
 option( WITH_RIOKARMA "Enable riokarma support" OFF )
 option( WITH_DAAP "Enable daap support" OFF )
+option( WITH_INOTIFY "Enable inotify support" OFF )
 
 
 ##### user requested modules ####################

ConfigureChecks.cmake

@@ -24,7 +24,7 @@ check_include_file( systems.h HAVE_SYSTEMS_H )
 
 ##### check for inotify ###########################
 
-# if( WITH_INOTIFY )
+if( WITH_INOTIFY )
   check_include_file( "inotify.h" INOTIFY_FOUND )
   check_include_file( "sys/inotify.h" INOTIFY_SYS_FOUND )
   if( NOT INOTIFY_FOUND )
@@ -39,7 +39,7 @@ check_include_file( systems.h HAVE_SYSTEMS_H )
       set( HAVE_INOTIFY 1 )
       set( HAVE_SYS_INOTIFY 1 )
   endif( INOTIFY_SYS_FOUND )
-# endif( )
+endif( )
 
 check_function_exists( statvfs HAVE_STATVFS )