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Re: [Bug-gnulib] How do malloc.c and realloc.c get used?

From: Paul Eggert
Subject: Re: [Bug-gnulib] How do malloc.c and realloc.c get used?
Date: 09 Sep 2003 16:12:43 -0700
User-agent: Gnus/5.09 (Gnus v5.9.0) Emacs/21.3

"Gary V.Vaughan" <address@hidden> writes:

> but while adding the xalloc module I noticed something odd: Despite
> the fact the modules/xalloc file declares reliance on both malloc.c
> and realloc.c, there doesn't appear to be anyway rpl_malloc or
> rpl_realloc can be called.

xalloc doesn't depend on malloc.c or realloc.c directly; it depends
on the malloc and realloc modules.  If you include the malloc and
realloc modules, you should get a working program.

> My guess is something like the following is missing?
> malloc.m4 (jm_FUNC_MALLOC):
>    if test X"$ac_cv_func_malloc_0_nonnull" = Xno || test 
> X"$ac_cv_func_malloc_works" = Xno; then
>          [Define to 1 if system malloc cant handle 0 sized mallocations])
>    fi

It shouldn't be needed, because AC_FUNC_MALLOC does that.
(This changed in Autoconf 2.55; perhaps your Autoconf is old?)

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