Re: Check for `mmap' fails on Cygwin/Windows

[Alexandre Oliva]

On Oct 25, 2000, Akim Demaille <address@hidden> wrote:

> it is unclear how the test should be performed

IMO, we should deprecate AC_FUNC_MMAP and either create variants that
test for certain features of mmap or just wait for them to show up in
the macro archive and maybe incorporate them.  I don't like the idea
of changing the meaning of an existing macro, though.  Programs that
currently use this macro may rely on the fact that it tests for
MAP_FIXED support, and, if we stop testing that, they'll just break.

Corinna, GCC's aclocal.m4 already has a modified version of this
macro, and so does INN.  Your best bet is probably to pick one of
them, or the modified AC_FUNC_MMAP, and try to get it into the
autoconf macro repository or into the packages of interest.


But there's still one issue: if the current test will return true on
MS-Windows but it shouldn't, we may have to find some way to make it
stricter.  Is that the case?

-- 
Alexandre Oliva   Enjoy Guarana', see http://www.ic.unicamp.br/~oliva/
Red Hat GCC Developer                  address@hidden, redhat.com}
CS PhD student at IC-Unicamp        address@hidden, gnu.org}
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