AC_DEFUN([TAR_COMPR_PROGRAM],[
m4_pushdef([tar_compr_define],translit($1,[a-z+-],[A-ZX_])[_PROGRAM])
m4_pushdef([tar_compr_var],[tar_cv_compressor_]translit($1,[+-],[x_]))
AC_DEFUN([TAR_COMPR_PROGRAM],[
m4_pushdef([tar_compr_define],translit($1,[a-z+-],[A-ZX_])[_PROGRAM])
m4_pushdef([tar_compr_var],[tar_cv_compressor_]translit($1,[+-],[x_]))