Incomplete test for mkdtemp() in lib/sh/tmpfile.c for bash-5.1.8 on HP-UX

[Osipov, Michael (LDA IT PLM)]

Folks,

there is an incomplete macro testing. USE_MKDTEMP is defined in 
config-top.h. HAVE_MKDTEMP is properly unset in config.h for HP-UX since 
it is not available, but tempfile.c does this:
> #ifdef USE_MKDTEMP
>   filename = (char *)xmalloc (PATH_MAX + 1);
>   tdir = get_tmpdir (flags);
>   tdlen = strlen (tdir);

It ignores the HAVE_MKDTEMP completely and the linker tells me: 
undefined symbol mkdtemp.
Turned into:
> #if defined (USE_MKDTEMP) && defined (HAVE_MKDTEMP)
>   filename = (char *)xmalloc (PATH_MAX + 1);
>   tdir = get_tmpdir (flags);
>   tdlen = strlen (tdir);

and it works now.

Note: this pontentionally applies to USE_MKSTEMP/HAVE_MKSTEMP as well.

Michael