tde_create_tarball: Add options to make tarballs reproducible

independently of UMASK and time zone.

Signed-off-by: Slávek Banko <slavek.banko@axis.cz>
(cherry picked from commit 7b6865d9e6)

modules/TDEMacros.cmake

@@ -2122,11 +2122,12 @@ macro( tde_create_tarball )
     if( "${TAR_VERSION}" MATCHES "GNU *tar" )
       set( TAR_SETOWNER "--owner=root;--group=root" )
       set( TAR_REPRODUCIBLE "--pax-option=exthdr.name=%d/PaxHeaders/%f,delete=atime,delete=ctime" )
+      list( APPEND TAR_REPRODUCIBLE "--mode=u+rw,go=rX,a-s" )
       tde_read_src_metadata()
       if( TDE_PKG_DATETIME )
-        list( APPEND TAR_REPRODUCIBLE --mtime "${TDE_PKG_DATETIME}" )
+        list( APPEND TAR_REPRODUCIBLE --mtime "${TDE_PKG_DATETIME} UTC" )
       elseif( TDE_SCM_MODULE_DATETIME )
-        list( APPEND TAR_REPRODUCIBLE --mtime "${TDE_SCM_MODULE_DATETIME}" )
+        list( APPEND TAR_REPRODUCIBLE --mtime "${TDE_SCM_MODULE_DATETIME} UTC" )
       endif( )
     elseif( "${TAR_VERSION}" MATCHES "bsd *tar" )
       set( TAR_SETOWNER "--uname=root;--gname=root" )