This bug was fixed in the package binutils - 2.21.53.20110810-0ubuntu5
---
binutils (2.21.53.20110810-0ubuntu5) oneiric-proposed; urgency=low
* Fix PR ld/13287, taken from the trunk. LP: #872687.
-- Matthias Klose d...@ubuntu.com Thu, 20 Oct 2011 15:13:07 +0200
** Changed in:
** Branch linked: lp:ubuntu/oneiric-proposed/binutils
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https://bugs.launchpad.net/bugs/872687
Title:
c++ -flto always results in unresolved symbols
To manage notifications about this
Hello Tom, or anyone else affected,
Accepted binutils into oneiric-proposed, the package will build now and
be available in a few hours. Please test and give feedback here. See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to
enable and use -proposed. Thank you in advance!
** Changed in: binutils
Status: In Progress = Fix Released
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https://bugs.launchpad.net/bugs/872687
Title:
c++ -flto always results in unresolved symbols
To manage notifications
Hi Martin
I installed the binutils from proposed and build the StockFish chess program
(which failed to build initially) with -flto and also
combined with the PGO build option.
No problems, the new binutils works just fine!
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** Description changed:
+ TEST CASE
===main.cc =
int main() {}
===
c++ -flto main.cc
+ EXPECTED RESULT:
+ Builds fine
+
+ WHAT HAPPENS:
results in unresolved symbol errors on latest oneiric beta
+ WORKAROUND
Adding -static is a work around
** Tags
** Changed in: binutils
Status: Confirmed = In Progress
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https://bugs.launchpad.net/bugs/872687
Title:
c++ -flto always results in unresolved symbols
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** Also affects: binutils (Ubuntu Oneiric)
Importance: Undecided
Status: New
** Changed in: binutils (Ubuntu Oneiric)
Importance: Undecided = High
** Changed in: binutils (Ubuntu Oneiric)
Status: New = Confirmed
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This bug was fixed in the package binutils - 2.21.90.20111019-2ubuntu1
---
binutils (2.21.90.20111019-2ubuntu1) precise; urgency=low
* Merge with Debian.
binutils (2.21.90.20111019-2) unstable; urgency=low
* Fix PR ld/13287, taken from the trunk. LP: #872687.
binutils
** Branch linked: lp:debian/binutils
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https://bugs.launchpad.net/bugs/872687
Title:
c++ -flto always results in unresolved symbols
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better work arounds are
- use -Wl,--no-as-needed
- use gold (-B/usr/lib/gold-ld/)
** Package changed: gcc-defaults (Ubuntu) = binutils (Ubuntu)
** Changed in: binutils (Ubuntu)
Importance: Undecided = High
** Changed in: binutils (Ubuntu)
Status: New = Confirmed
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