[PATCH 3/3] libctf: look for a qsort_r that functions properly
Wed Jun 5 10:25:00 GMT 2019
On 6/3/19 9:47 PM, Nick Alcock wrote:
> We cannot just look for any declaration of qsort_r, because some
> operating systems
OOC, could you give some examples?
> have a qsort_r that has a different prototype
> but which still has a pair of pointers in the right places (the last two
> args are interchanged), so we cannot rely on compilation errors to flag
> up a problem.
> So, instead, use AC_RUN_IFELSE to check for the function of qsort_r(),
> passing function pointers in to both args and making sure that we never
> actually dereference the arg pointer.
AC_RUN_IFELSE is really best avoided; obviously you can't run when
How does gnulib handle this?
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