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Bug#808471: marked as done (Multiple -march flags)

Your message dated Wed, 23 Jan 2019 10:00:21 +0000
with message-id <E1gmFKX-000B2o-7A@fasolo.debian.org>
and subject line Bug#920166: Removed package(s) from unstable
has caused the Debian Bug report #808471,
regarding Multiple -march flags
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact owner@bugs.debian.org
immediately.)


-- 
808471: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=808471
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message --- 
Package: gcc-5
Version: 5.3.1-3
Severity: normal

I couldn't find anything on the matter, but what happens if -march is repeated
more than once?  I would assume the usual behavior that the last flag "wins".

On a haswell host, the following:

gcc -march=native -march=opteron

or

gcc -march=opteron -march=native

both emit code which is illegal for the opteron ISA, as if -march=native had
special treatment. Specifying -march=opteron alone works as intended.

Since I generally override the default flags in makefiles by appending
exceptions where needed, I'd sort of expected the regular behavior.

Is this intended?

Thanks.

-- System Information:
Debian Release: stretch/sid
  APT prefers unstable
  APT policy: (900, 'unstable'), (800, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 4.3.0-1-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages gcc-5 depends on:
ii  binutils      2.25.90.20151209-1
ii  cpp-5         5.3.1-3
ii  gcc-5-base    5.3.1-3
ii  libc6         2.21-4
ii  libcc1-0      5.3.1-3
ii  libgcc-5-dev  5.3.1-3
ii  libgcc1       1:5.3.1-3
ii  libgmp10      2:6.1.0+dfsg-2
ii  libisl15      0.15-3
ii  libmpc3       1.0.3-1
ii  libmpfr4      3.1.3-2
ii  libstdc++6    5.3.1-3
ii  zlib1g        1:1.2.8.dfsg-2+b1

Versions of packages gcc-5 recommends:
ii  libc6-dev  2.21-4

Versions of packages gcc-5 suggests:
ii  gcc-5-doc         5.2.0-1
pn  gcc-5-locales     <none>
pn  gcc-5-multilib    <none>
pn  libasan2-dbg      <none>
pn  libatomic1-dbg    <none>
pn  libcilkrts5-dbg   <none>
pn  libgcc1-dbg       <none>
pn  libgomp1-dbg      <none>
pn  libitm1-dbg       <none>
pn  liblsan0-dbg      <none>
pn  libmpx0-dbg       <none>
pn  libquadmath0-dbg  <none>
pn  libtsan0-dbg      <none>
pn  libubsan0-dbg     <none>

--- End Message ---
--- Begin Message --- 
Version: 5.5.0-12+rm

Dear submitter,

as the package gcc-5 has just been removed from the Debian archive
unstable we hereby close the associated bug reports.  We are sorry
that we couldn't deal with your issue properly.

For details on the removal, please see https://bugs.debian.org/920166

The version of this package that was in Debian prior to this removal
can still be found using http://snapshot.debian.org/.

This message was generated automatically; if you believe that there is
a problem with it please contact the archive administrators by mailing
ftpmaster@ftp-master.debian.org.

Debian distribution maintenance software
pp.
Scott Kitterman (the ftpmaster behind the curtain)

--- End Message ---
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