On Mon, 10 Nov 2008, Eric Blake wrote:
For that matter, even m4_default([EVAS_CHECK_LOADER_DEP_]m4_defn([UP]))(args) would work.
indeed
AC_CHECK_HEADER([jpeglib.h], [ have_dep="yes" evas_image_loader_[]$1[]_cflags="" evas_image_loader_[]$1[]_libs="-ljpeg" ] ) AC_SUBST([evas_image_loader_$1_cflags]) AC_SUBST([evas_image_loader_$1_libs])This last usage is different than the first two (in the first two, you separate $1 from its neighbors, so that a $1 of either "LOWER" or "jpeg" would work. But since you didn't separate it in the last case, you are stuck with: evas_image_loader_LOWER_cflags which is not a macro name, and you've lost jpeg. You probably meant: AC_SUBST([evas_image_loader_[]$1[]_cflags])
no, I use AC_SUBST([evas_image_loader_$1_cflags]) I call that macro that way: m4_default([EVAS_CHECK_LOADER_DEP_]m4_defn([UP]))(DOWN, [have_evas_image_loader_[]DOWN="yes"], [have_evas_image_loader_[]DOWN="no"]) I have not quoted DOWN (the 1st argument). Otherwise it does not work.
if test "x${have_dep}" = "xyes" ; then ifelse([$2], , :, [$2])Yes, ifelse is another raw m4 macro you should avoid. In general, this can be replaced with m4_if, but in this particular use case, you can write the abbreviated: m4_default([$2], [:])
ok, thank you for your help. It's nice to see that we can write some kind of interface in m4 :)
Vincent Torri _______________________________________________ Autoconf mailing list Autoconf@xxxxxxx http://lists.gnu.org/mailman/listinfo/autoconf
