-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 According to Eric Blake on 9/11/2009 8:40 PM: > This assumes that your arguments to CL_CLISP_REQUIRE_FEATURE won't cause > further macro expansion or quote removal; to be safer, you'd have to use > m4_defn([cl_feat]) rather than cl_feat in several places. Also, if you > are requiring newer autoconf, it may be more efficient to use > m4_map_args_w rather than m4_foreach_w: > > m4_define([_CL_CLISP_REQUIRE_FEATURE_1], > [_CL_CLISP_REQUIRE_FEATURE_2([$1], m4_toupper([$1]))]) > m4_define([_CL_CLISP_REQUIRE_FEATURE_2], > [AC_CACHE_CHECK([for $2 in CLISP], [cl_cv_clisp_$1], > [CLISP_SET([cl_cv_clisp_$1], [[#+$1 "yes" #-$1 "no"]])]) > test $cl_cv_clisp_$1 = no && AC_MSG_ERROR([$2 is missing in CLISP])]) > AC_DEFUN([CL_LISP_REQUIRE_FEATURE], > [m4_map_args_w([$1], [_CL_CLISP_REQUIRE_FEATURE_1(], [)], [ > ]) I haven't seen any mention of you trying this variant; it still uses m4_toupper, but avoids m4_pushdef of a temporary macro name, and so it may react better to the fact that m4_toupper does not quote its argument. At any rate, using 'autoconf --trace=_CL_CLISP_REQUIRE_FEATURE_2' would show what the result of m4_toupper turns out to be in this case. - -- Don't work too hard, make some time for fun as well! Eric Blake ebb9@xxxxxxx -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (Cygwin) Comment: Public key at home.comcast.net/~ericblake/eblake.gpg Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAkquN5EACgkQ84KuGfSFAYB6KgCguBUQeBpNn6ZefdzmduLQAHLE YZkAoLhWYDB6LGBJcr/pV3LbM9SWx+0h =2jZ3 -----END PGP SIGNATURE----- _______________________________________________ Autoconf mailing list Autoconf@xxxxxxx http://lists.gnu.org/mailman/listinfo/autoconf
