Ralf Wildenhues wrote:
Yes. HP-UX /bin/sh is known to dump core in
case `command that produces more than 1 KB of output` in
and I don't know how much output other compilers generate when given the
-V option.
But say, why is that HP-UX shell issue not listed in the Autoconf
portability section? FWIW, I can't reproduce it on some HP-UX systems;
the oldest I have access to is an HP-UX 10.20.
Then it must be have been in HP-UX 9 (which was in use around 1992 to 1996).
It'd be good to know
about the impact of this -- do you have pointers to bug reports? (Also
note that the shell selection algorithm of Autoconf-2.59c will select
/usr/bin/posix/sh there.)
+ _LT_AC_TAGVAR(whole_archive_flag_spec,
$1)='${wl}--whole-archive`new_convenience=; for conv in
+$convenience\\; do test -z \$conv\ ||
new_convenience=\$new_convenience,$conv\; done; $echo
\$new_convenience\`+${wl}--no-whole-archive'
Are you sure the compiler driver won't reorder arguments here?
...
IIRC, on Solaris, this:
| _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}-z ${wl}allextract`for conv
| in $convenience\\; do test -n \$conv\
| new_convenience=\$new_convenience,$conv\; done; $echo
| \$new_convenience\` ${wl}-z ${wl}defaultextract'
caused some problems somewhere; cf. for example this thread:
http://lists.gnu.org/archive/html/bug-libtool/2005-10/msg00040.html
and note that with C++, your patch sets ${wl} to `-Qoption ld ' as well,
not to `-Wl,'.
Also, consider this: in a (maybe partially) static linking case, the
objects from the convenience archive require some symbol from a library
specified later. If the driver reorders, we may be out of luck here, as
the needed library may happen to end up listed earlier. OTOH, the
driver on Solaris knows '-z allextract' and understands what to do with
the following arguments. So that had a chance of actually working
across Solaris versions (the driver happens to also reorder differently
across versions).
Now, if the driver understands --whole-archive/--no-whole-archive on
GNU/Linux, I think that should be used plainly, without ${wl}. If it
doesn't, then, depending on how it reorders, we should file a bug
report.
Sun C on Linux appears to put linker options first, before the object files
to be linked; therefore the needed libraries will come later - no problem.
Bruno
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