[Mingw-users] Re: MinGW GLib

[Soren A <sor...@fa...>]

Earnie Boyd <ear...@ya...> wrote around 28 Sep 2002
news:3D9...@ya...: 

> Norman Vine wrote:
>> 
>> Earnie Boyd writes:
>> 
>> > Norman Vine wrote:
>> > >
>> > > >
>> > > > Why not just check canonical build variable build_os which will
>> > > > = mingw32 for mingw32 and will = cygwin for cygwin?
>> > >
>> > > I guess I don't know what needs to be done to be able to check
>> > > for that 
>> > >
>> >
>> > if test "$build_os" = mingw32; then
>> > ...
>> > fi
>> 
>> Thanks Ernie and that's what I thought but ....
>> if I add this line to the end of a configure.ac file
>> 
> 
> Does the configure.ac file contain AC_CANONICAL_HOST?
> 
> Earnie.

This is the key point. AC_CYGWIN is deprecated and the recommendation of
the Autoconf people is to use AC_CANONICAL_HOST (and to do so early
enough in the configure.ac). There's no need for any special kludge for
Cygwin and hasn't been for quite awhile. And that's all AC_CYGWIN ever
was: a kludge that unfortunately outlived its usefulness to an unusual
degree (people got used to seeing it in 'configure.in|ac's and without
understanding the full situation just mimic'ed it [call it "magic
incantation syndrome"]). And it's a kludge that has potential
undesirable side effects -- the documentation says _not merely_ "not
needed anymore" but instead "PLEASE DON'T USE IT". IOW not just
"deprecated" but "_severely_ deprecated". "Deprecated with extreme
prejudice" if you are a fan of action-adventure thrillers. ;-)

Norman, if AC_CANONICAL_HOST called at the appropriately early point (I 
believe that for most purposes just after AC_PROG_CC is appropriate) 
doesn't fix your problems, I think there is something going wrong.

   Best,
    Soren A