> Since the usual way to implement nestable behaviour in Autoconf is
> m4_pushdef / m4_popdef
Another idea would to be m4_pushdef AM_CONDITIONAL itself.
If you add a third parameter to AM_CONDITIONAL, denoting the conditions
in which the conditional needs to be defined, then gnulib could emit
code like this:
m4_define([AM_CONDITIONAL_ORIG], m4_defn([AM_CONDITIONAL]))
AC_DEFUN([gl_LENIENT_CONDITIONAL], [AM_CONDITIONAL_ORIG([$1],[$2],[USE_FOO])])
m4_pushdef([AM_CONDITIONAL], [gl_LENIENT_CONDITIONAL])
if test $enable_foo; then
AM_CONDITIONAL([FOO], [:])
fi
m4_pushdef([AM_CONDITIONAL], [gl_LENIENT_CONDITIONAL])
if test -n "$user_flag"; then
AM_CONDITIONAL([BAR], [test $user_flag = yes])
fi
m4_popdef([AM_CONDITIONAL])
if test 0 = 1; then
AM_CONDITIONAL([BAZ], [:])
fi
m4_popdef([AM_CONDITIONAL])
But it certainly gets hairy...
Bruno
--
In memoriam Lamana Ould Bou <http://fr.wikipedia.org/wiki/Lamana_Ould_Bou>
