Generate kweather station information files during the build phase

instead of the configuration phase.

Signed-off-by: Slávek Banko <slavek.banko@axis.cz>

kweather/CMakeLists.txt

@@ -51,11 +51,14 @@ if( NOT PERL_EXECUTABLE )
   include( FindPerl )
 endif( )
 
-execute_process(
+add_custom_command(
+    OUTPUT stations.dat weather_stations.desktop
     COMMAND ${PERL_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/genstations.pl
         ${CMAKE_CURRENT_SOURCE_DIR}/data/nsd_cccc.txt
         ${CMAKE_CURRENT_SOURCE_DIR}/data/station_names.txt
         ${CMAKE_CURRENT_SOURCE_DIR}/weather_stations.desktop.in
+    DEPENDS
+        data/nsd_cccc.txt data/station_names.txt weather_stations.desktop.in
     WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
 )