[lto] trying to link with -flto makes troubles

[Łukasz Tasz <lukasz@xxxxxxx>]

Hi All,

I have an issue while linking with lto.
Adding lto switch causes linking problem:

/tmp/ccxSBT93.ltrans2.ltrans.o:(.rodata+0x48): undefined reference to
`non-virtual thunk to
boost::exception_detail::clone_impl<boost::exception_detail::error_info_injector<boost::bad_lexical_cast>
>::~clone_impl()'
/tmp/ccxSBT93.ltrans2.ltrans.o:(.rodata+0x50): undefined reference to
`non-virtual thunk to
boost::exception_detail::clone_impl<boost::exception_detail::error_info_injector<boost::bad_lexical_cast>
>::~clone_impl()'
/tmp/ccxSBT93.ltrans2.ltrans.o:(.rodata+0x78): undefined reference to
`non-virtual thunk to
boost::exception_detail::clone_impl<boost::exception_detail::error_info_injector<boost::bad_lexical_cast>
>::~clone_impl()'
/tmp/ccxSBT93.ltrans2.ltrans.o:(.rodata+0x80): undefined reference to
`non-virtual thunk to
boost::exception_detail::clone_impl<boost::exception_detail::error_info_injector<boost::bad_lexical_cast>
>::~clone_impl()'
/opt/rh/devtoolset-2/root/usr/libexec/gcc/x86_64-redhat-linux/4.8.2/ld:
boostTest: hidden symbol `.LTHUNK17.18652' isn't defined
/opt/rh/devtoolset-2/root/usr/libexec/gcc/x86_64-redhat-linux/4.8.2/ld:
final link failed: Bad value
collect2: error: ld returned 1 exit status

gcc version is Redhat one 4.8.2, compilation without -flto works,
do you have any ideas?


regards
Łukasz Tasz