bug#7859: syncing Emacs from sources maintained elsewhere

[Jan Djärv]

Paul Eggert skrev 2011-01-20 00.44:
> I see that Jan Djärv tracked the problem down:
> unexmacosx.c included<unistd.h>  before<config.h>,
> and this caused the problem.  Generally speaking,<config.h>
> should be included before all other files, since it
> defines macros such as _FILE_OFFSET_BITS that may affect
> the ABI, and compiling files sometimes with one ABI and
> sometimes with another can lead to disaster.
>
> I see that unexmacos.c still doesn't include<config.h>  first,
> though.  I suggest that it be changed to do that.

Not possible, I added this comment:

/* config.h #define:s malloc/realloc/free and then includes stdlib.h.
   We want the undefined versions, but if config.h includes stdlib.h
   with the #define:s in place, the prototypes will be wrong and we get
   warnings.  To prevent that, include stdlib.h before config.h.  */

        Jan D.