Re: [gentoo-user] What is the correct version of ncurses on ~amd64 now?

[Fernando Rodriguez]

On Tuesday, September 01, 2015 12:13:25 AM Alan McKinnon wrote:
> On 31/08/2015 23:13, walt wrote:
> > I ask this strange question because this (badly broken) machine once
> > again flipped between 6.0 and 6.0-r1 after rsyncing this morning.
> >
> > First, it emerged 6.0, which turned out to be almost catastrophic
> > because the qmerge phase of the emerge failed (although it claimed
> > success afterwards) and deleted the entire /usr/share/terminfo
> > subdirectory.  That was fun, but I won't bore you with the details.
> > (The ncurses-6.0 files in /lib64 are dated August 28, BTW.)
> >
> > Right now emerge tries to install ncurses-6.0-r1 but the 32-bit part of
> > the build fails because emerge never ran make in the work/cross/progs
> > directory, and so the 32-bit tools didn't get compiled.
> >
> > I hacked around this by running make in that directory manually, which
> > allowed the ebuild install and ebuild package phases to succeed.
> >
> > Now I have an ncurses-6.0-r1 binary package available but I'm too scared
> > to install it because I might need to kill myself afterwards :/
> >
> > Any suggestions before I take the plunge?  Is ncurses-6.0-r1 the right
> > version as of today, Aug 31?
> >
> > Thanks.
> >
> >
> >
>
>
>
> This machine was entirely unaffected by all the recent ncurses issues:
>
> [I] sys-libs/ncurses
>      Available versions:
>      (0)    5.9-r3 (~)5.9-r4 5.9-r5(0/5) (~)6.0-r1(0/6)
>      (5)    5.9-r99(5/5) (~)5.9-r101(5/5) (~)6.0(5/6)
>        {ada +cxx debug doc gpm minimal profile static-libs test threads
> tinfo trace unicode ABI_MIPS="n32 n64 o32" ABI_PPC="32 64" ABI_S390="32
> 64" ABI_X86="32 64 x32"}
>      Installed versions:  6.0-r1(12:52:29 30/08/2015)(cxx gpm threads
> unicode -ada -debug -doc -minimal -profile -static-libs -test -tinfo
> -trace ABI_MIPS="-n32 -n64 -o32" ABI_PPC="-32 -64" ABI_S390="-32 -64"
> ABI_X86="32 64 -x32")
>      Homepage:            https://www.gnu.org/software/ncurses/
> http://dickey.his.com/ncurses/
>      Description:         console display library
>
> So 6.0-r1 works completely relaible on at least one Gentoo machine in
> this world :-)

Hmm, I keyworded ncurses and this is what portage wants to do:

[ebuild  r  U ~] sys-libs/ncurses-6.0-r1:0/6::gentoo [5.9-r5:0/5::fernan] 
USE="cxx doc gpm tinfo unicode -ada -debug -minimal -profile -static-libs {-
test%} -threads% -trace" ABI_X86="32 (64) -x32" 3,059 KiB
[ebuild     U ~] sys-libs/ncurses-5.9-r101:5::gentoo [5.9-r99:5::gentoo] 
USE="gpm tinfo unicode (-ada%) (-cxx%*) (-static-libs%)" ABI_X86="32 (64) -
x32" 0 KiB
[ebuild  rR   ~] sys-devel/gdb-7.10::gentoo  USE="client expat python server 
zlib -lzma -multitarget -nls {-test} -vanilla" PYTHON_SINGLE_TARGET="python2_7 
-python3_3 -python3_4" PYTHON_TARGETS="python2_7 python3_4 -python3_3" 0 KiB
[ebuild  rR    ] app-misc/screen-4.3.1::gentoo  USE="pam -debug -multiuser -
nethack -selinux" 0 KiB
[ebuild  rR    ] app-emulation/wine-1.6.2::gentoo  USE="X alsa cups custom-
cflags fontconfig gecko jpeg lcms ldap mp3 ncurses openal opengl perl png 
prelink pulseaudio run-exes samba ssl threads truetype udisks v4l xcomposite 
xinerama xml -capi -dos -gphoto2 -gsm -gstreamer -mono -nls -odbc -opencl -
osmesa -oss -realtime -scanner -selinux {-test}" ABI_X86="32 64 -x32" 
LINGUAS="-ar -bg -ca -cs -da -de -el -en -en_US -eo -es -fa -fi -fr -he -hi -hr 
-hu -it -ja -ko -lt -ml -nb_NO -nl -or -pa -pl -pt_BR -pt_PT -rm -ro -ru -sk -
sl -sr_RS@cyrillic -sr_RS@latin -sv -te -th -tr -uk -wa -zh_CN -zh_TW" 0 KiB


That looks dangerous to me because the first build will upgrade my 5.9 
installation to 6.0 and the second will reinstall 5.9. 

So what happens in between when I have no 5.9 installed but everything is 
linked against it? Won't it need bash to build the second one? What if the 2nd 
build fails? Will stuff linked against 5.9 work with 6.0?

-- 
Fernando Rodriguez