don't use AC_FUNC_MMAP, use AC_CHECK_FUNCS(mmap) instead.

[Gerrit P. Haase]

Gerrit P. Haase wrote:

> AC_CHECK_FUNCS(mmap) issues this:
> checking for mmap... yes
> 
> This is what I will using now for all the GNOME packages, there are 
> several packages affected, so far I know of:
> - libgtop
> - gtk+
> - libgnomeprint
> - libgsf
> 
> I think it just tries to link against the system library and it 
> succeeds, so mmap() is considered to be available.  Fine with me.
> 
> Using the macro AC_FUNC_MMAP, the test fails and mmap() will not be 
> available.


BTW, it looks like this in configure.ac:
case "$host" in
   *cygwin*)
     AC_CHECK_FUNCS(mmap)
     ;;
   *)
     AC_FUNC_MMAP
     ;;
esac

Gerrit
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