[Mesa-dev] [Bug 55599] New: LTO build breakage

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=55599

          Priority: medium
            Bug ID: 55599
          Assignee: mesa-dev at lists.freedesktop.org
           Summary: LTO build breakage
          Severity: critical
    Classification: Unclassified
                OS: Linux (All)
          Reporter: jrch2k10 at gmail.com
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: git
         Component: Mesa core
           Product: Mesa

error detail:
CCLD     libglapi.la
/usr/lib/gcc/x86_64-pc-linux-gnu/4.7.1/../../../../x86_64-pc-linux-gnu/bin/ld:
/var/tmp/portage/media-libs/mesa-9999/temp/cc5rdqpY.ltrans0.ltrans.o: warning:
relocation against `x86_64_entry_start.2365.2566' in readonly section `.text'.
/usr/lib/gcc/x86_64-pc-linux-gnu/4.7.1/../../../../x86_64-pc-linux-gnu/bin/ld:
/var/tmp/portage/media-libs/mesa-9999/temp/cc5rdqpY.ltrans0.ltrans.o:
relocation R_X86_64_PC32 against undefined symbol
`x86_64_entry_start.2365.2566' can not be used when making a shared object;
recompile with -fPIC
/usr/lib/gcc/x86_64-pc-linux-gnu/4.7.1/../../../../x86_64-pc-linux-gnu/bin/ld:
final link failed: Bad value
collect2: error: ld returned 1 exit status

reproducible always LTO is enabled 

gcc-4.7.1

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