On Thu, Aug 13, 2015 at 04:35:00PM +0200, Miroslav Lichvar wrote:
> On Tue, Aug 04, 2015 at 12:33:42PM +0200, Miroslav Lichvar wrote:
> > As for updating the ncurses package, my current plan is to build the
> > libs in both ABIs (so there are four builds total with the wide and
> > narrow versions), use the ncurses-libs subpackage for the new ABI 6
> > libs and create a new subpackage for ABI 5 libs. What would be a good
> > name of the subpackage? ncurses-libs5, ncurses5-libs, compat-ncurses5,
> > or something else?
>
> Ok, the new ncurses package is now in rawhide. The name of the ABI 5
> subpackage is ncurses-compat-libs.
>
> I've also rebuilt the readline package to pick up the new libtinfo.
> Binaries that are linked with both readline and ncurses/libtinfo (e.g.
> gdb, bc, sqlite3) will now load both versions of libtinfo into memory,
> which I suspect could be a problem. I tried some of them and they
> don't seem to crash, but we might want to rebuild the packages to be
> safe anyway.
>
> Here is a list of packages that seem to have binaries like that. I
> suspect a lot of them are linked with ncurses unnecessarily.
>
> libguestfs-tools-c-1.31.1-3.fc24: /usr/bin/guestfish
guestfish uses APIs from readline and libtinfo directly. It does not
use ncurses APIs directly.
$ eu-readelf -d /usr/bin/guestfish | grep NEEDED
NEEDED Shared library: [libconfig.so.9]
NEEDED Shared library: [libreadline.so.6]
NEEDED Shared library: [libncurses.so.5]
NEEDED Shared library: [libtinfo.so.5]
NEEDED Shared library: [libguestfs.so.0]
NEEDED Shared library: [libxml2.so.2]
NEEDED Shared library: [libm.so.6]
NEEDED Shared library: [libgcc_s.so.1]
NEEDED Shared library: [libpthread.so.0]
NEEDED Shared library: [libc.so.6]
$ nm -D /usr/bin/guestfish | grep readline
U readline
00000000002fdb30 B rl_readline_name
$ nm -D /usr/bin/guestfish | grep tget
U tgetent
U tgetnum
So it is overlinked, but IIRC that's because you had to use
`-lreadline -lncurses' to make readline work properly on some old
systems.
Can we replace that with `-lreadline'?
Are there any implications for a program which actually uses
termcap/libtinfo functions also?
> ocaml-omake-0.9.8.6-0.rc1.fc24.20: /usr/bin/cvs_realclean
> ocaml-omake-0.9.8.6-0.rc1.fc24.20: /usr/bin/omake
Not sure about this one - it seems to use both readline and ncurses,
but it's quite a big complicated program.
Rich.
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