fix build with older autoconf
fix build with older autoconf

svn path=/branches/KDE/3.5/kdepim/; revision=445184

lefou/kdepim-noakonadi,lefou/kdepim-noakonadi,lefou/kdepim-noakonadi,lefou/kdepim-noakonadi,lefou/kdepim-noakonadi,lefou/kdepim-noakonadi