[Bug binutils/27345] binutils/arsup.c: lstat() not available on all targets

[amodra at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=27345

Alan Modra <amodra at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Last reconfirmed|                            |2021-02-05
     Ever confirmed|0                           |1
             Status|UNCONFIRMED                 |ASSIGNED
           Assignee|unassigned at sourceware dot org   |amodra at gmail dot com

--- Comment #1 from Alan Modra <amodra at gmail dot com> ---
Huh, I thought it was safe to use.  I looked at older binutils and saw that
lstat was used in binutils/rename.c but on looking more closely I see

#ifndef S_ISLNK
#ifdef S_IFLNK
#define S_ISLNK(m) (((m) & S_IFMT) == S_IFLNK)
#else
#define S_ISLNK(m) 0
#define lstat stat
#endif
#endif

So I expect we need to do the same in arsup.c.

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