>>>>> "Derek" == Derek R Price <[EMAIL PROTECTED]> writes:
Derek> Yeah, sorry. I'm trying to use AS_MKDIR_P in an unescaped
Derek> heredoc context. The reason I don't seem to be able to avoid
Derek> _that_ is that I want it to happen as part of a step before a
Derek> header gets created so I'm passing it into AC_CONFIG_HEADER as
Derek> an INIT-CMD.
There are plenty of reasons for this to be impossible. There is no
`eval_and_quote' macro in M4, and it's quite hard to implement (what
of the side effects?). There are only approximations, and it's quite
complex trying to.
A first approximation would be:
AC_PLAIN_SCRIPT
cat <<EOF
AS_ESCAPE(m4_dquote(AS_MKDIR_P(["sdir"])), [\$`])
EOF
but it fails:
| cat <<EOF
| { case \"sdir\" in
| [\\\\/]* | ?:[\\\\/]* as_incr_dir=;;
| * as_incr_dir=.;;
| esac
| as_dummy="sdir"
| for as_mkdir_dir in `IFS='/\\'; set X $as_dummy; shift; echo "$@"`; do
| case $as_mkdir_dir in
| # Skip DOS drivespec
| ?:) as_incr_dir=$as_mkdir_dir ;;
| *)
| as_incr_dir=$as_incr_dir/$as_mkdir_dir
| test -d "$as_incr_dir" || mkdir "$as_incr_dir"
| ;;
| esac
| done; }
| ), \$`)
| EOF
Pay special attention to the last line: it shows that m4 took the
closing parens of the case/esac into the teeth, and ``improperly''
split the arguments of AS_ESCAPE.
I would recomment to... No, wait a second, I would not recommend what
you are doing, M4 is not good at it, but, it you really want to, I'd
recommend something like:
AC_PLAIN_SCRIPT
AS_MKDIR_P(["sdir"])
cat <<EOF
m4_patsubst(AS_ESCAPE(m4_dquote(m4_defn([AS_MKDIR_P]))), [$1], ["sdir"])
EOF
