Re: how to AC_DEFINE* a fully evaluated variable?

[Richard Harnden]

>I tried something like this in my configure.ac file:
>
>MYDIR=${datadir}/foo
>AC_DEFINE_UNQUOTED(MYDIR,"$MYDIR",[default search directory for foo])
>
>but this ends up with:
>
>/* default search directory for foo */
>#define MYDIR "${prefix}/share/foo"
>
>in config.h but what I really wanted is the fully expanded directory, like
>"/opt/something/share/foo"  or "/usr/local/share/foo"
>
>
>Is there an option which will fully expand a variable or do I need to do
>something like
>
>CPPFLAGS="$CPPFLAGS -DMYDIR=$MYDIR"
>
>instead?
>
>Thanks
>-Dan
>


Grab AC_DEFINE_DIR, from ac-archive.sourceforge.net, it does exactly what
you want.