Move related stuff into Rpm/Deb Cmake files

cmake/Deb.cmake

@@ -2,14 +2,19 @@ find_program(LSB_RELEASE_EXEC lsb_release)
 find_program(DPKG_BUILDPACKAGE dpkg-buildpackage)
 
 if (LSB_RELEASE_EXEC AND DPKG_BUILDPACKAGE)
+  execute_process(COMMAND env LC_ALL=C date "+%a, %-d %b %Y %H:%M:%S %z" OUTPUT_VARIABLE DEB_DATE OUTPUT_STRIP_TRAILING_WHITESPACE)
+
   execute_process(COMMAND /bin/sh "-c" "${LSB_RELEASE_EXEC} -cs"
     OUTPUT_VARIABLE DEB_CODENAME
     OUTPUT_STRIP_TRAILING_WHITESPACE
   )
+
   if (DEB_CODENAME)
+    configure_file(${CMAKE_SOURCE_DIR}/debian/changelog.in ${CMAKE_SOURCE_DIR}/debian/changelog)
     add_custom_target(deb
       WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
       COMMAND ${DPKG_BUILDPACKAGE} -b -d -uc -us
     )
   endif()
+
 endif()