Bug#809509: Processed: retitle 809509 to gcc-6: Please build with -mcpu=ultrasparc on sparc64 when building 32-bit binaries
On 01/01/2016 02:36 PM, Matthias Klose wrote:
> how was this tested? The last time I checked that option was ignored.
Argh, you are right, I actually mentioned that earlier [1].
Not building -mcpu=ultrasparc results in ATOMIC_INT_LOCK_FREE == 1
which is responsible for the missing symbols on sparc64 multilib [2].
Maybe Jose (CC) can give some hints regarding the proper buildflags
which will make gcc build with -mcpu=ultrasparc when -mcpu32 is
specified.
Jose, any idea? The full background of the problem can be found
in the full bug report #792204 [3]:
The problem is basically that -mcpu=ultrasparc is not passed to
gcc when building the 32-bit libraries on sparc64 which results
in ATOMIC_INT_LOCK_FREE == 1 which results in several libstdc++6
symbols missing.
Adrian
> [1] https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=792204#82
> [2] https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=792204#35
> [3] https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=792204
--
.''`. John Paul Adrian Glaubitz
: :' : Debian Developer - glaubitz@debian.org
`. `' Freie Universitaet Berlin - glaubitz@physik.fu-berlin.de
`- GPG: 62FF 8A75 84E0 2956 9546 0006 7426 3B37 F5B5 F913
Reply to: