On 05/17/2010 01:44 PM, Daniel Leidert wrote: >> AS_FOR is not (yet) documented; > > I tried m4_foreach_w too. But this fails too: > >> ALL_LINGUAS="de fr nl" >> m4_foreach_w( m4_foreach_w does iteration of a list known at m4 time... >> [AC_lingua], >> [$ALL_LINGUAS], but $ALL_LINGUAS is a list not known until shell time. Therefore, m4_foreach_w sees a single-element list - the string "$ALL_LINGUAS". I meant that it would be worth writing an open-coded shell for loop: for lingua in $ALL_LINGUAS; do AC_MSG_NOTICE([...]) ... end > Even if I use m4_unquote, m4_split, ... I can't get this to work. My > working solution now is this one: > >> m4_define([_MY_LINGUAS], [de fr nl]) With this approach, you've moved the whitespace list of linguas out of shell and into m4... >> AC_SUBST([ALL_LINGUAS], "_MY_LINGUAS") >> m4_foreach_w( >> [AC_lingua], >> _MY_LINGUAS, which explains why this is working better for you. > Unfortunately the shell loop didn't work for me. I tried this: > >> ALL_LINGUAS="de fr nl" >> for lang in $ALL_LINGUAS >> do >> AC_MSG_NOTICE([Having lingua $lang])dnl debugging >> AH_TEMPLATE(AS_TR_CPP([HAVE_LINGUA_$lang]), [Define to 1 for $lang lingua support.]) >> AC_DEFINE(AS_TR_CPP([HAVE_LINGUA_$lang])) >> done > > It did split the variable correctly, but AH_TEMPLATES didn't seem to > work. Maybe I did something wrong (quotation maybe?)? Ah - to use an indirect variable (as in the value of HAVE_LINGUA_$lang), you have to us AS_VAR_PUSHDEF and AS_VAR_POPDEF. AH_TEMPLATE is a no-op unless it has a literal argument, but you gave it an indirect argument. -- Eric Blake eblake@xxxxxxxxxx +1-801-349-2682 Libvirt virtualization library http://libvirt.org
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