http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52887
--- Comment #21 from Daniel Richard G. <skunk at iskunk dot org> 2012-07-25
03:18:32 UTC ---
(In reply to comment #18)
> Maybe the <regex> code is non-functional, but *something* is referencing the
> symbol under certain circumstances.
I figure this is a question worth answering. Repeating the failed link with
-Wl,-bnoquiet gives some helpful information:
ld: 0711-318 ERROR: Undefined symbols were found.
The following symbols are in error:
Symbol Inpndx TY CL Source-File(Object-File) OR
Import-File{Shared-object}
RLD: Address Section Rld-type Referencing
Symbol
----------------------------------------------------------------------------------------------
.std::function<void (std::__regex::_PatternCursor const&,
std::__regex::_Results&)>::function(std::function<void
(std::__regex::_PatternCursor const&, std::__regex::_Results&)> const&) [146]
ER PR
/home/src/gcc-4.7.1/libstdc++-v3/src/c++11/regex.cc(/tmp/gcc-build/prev-powerpc-ibm-aix5.3.0.0/libstdc++-v3/src/.libs/libstdc++.a[regex.o])
00002918 .text R_RBR [3582]
.std::__regex::_State::_State(std::__regex::_State const&)
.std::function<void (std::__regex::_PatternCursor const&,
std::__regex::_Results&)>::function(std::function<void
(std::__regex::_PatternCursor const&, std::__regex::_Results&)> const&) [276]
ER PR
/home/src/gcc-4.7.1/libstdc++-v3/src/c++11/functexcept.cc(/tmp/gcc-build/prev-powerpc-ibm-aix5.3.0.0/libstdc++-v3/src/.libs/libstdc++.a[functexcept.o])
00003e18 .text R_RBR [4312]
.std::__regex::_State::_State(std::__regex::_State const&)
.std::function<bool (std::__regex::_PatternCursor
const&)>::function(std::function<bool (std::__regex::_PatternCursor const&)>
const&) [148] ER PR
/home/src/gcc-4.7.1/libstdc++-v3/src/c++11/regex.cc(/tmp/gcc-build/prev-powerpc-ibm-aix5.3.0.0/libstdc++-v3/src/.libs/libstdc++.a[regex.o])
00002938 .text R_RBR [3582]
.std::__regex::_State::_State(std::__regex::_State const&)
.std::function<bool (std::__regex::_PatternCursor
const&)>::function(std::function<bool (std::__regex::_PatternCursor const&)>
const&) [278] ER PR
/home/src/gcc-4.7.1/libstdc++-v3/src/c++11/functexcept.cc(/tmp/gcc-build/prev-powerpc-ibm-aix5.3.0.0/libstdc++-v3/src/.libs/libstdc++.a[functexcept.o])
00003e38 .text R_RBR [4312]
.std::__regex::_State::_State(std::__regex::_State const&)
ER: The return code is 8.
ld: 0711-317 ERROR: Undefined symbol: .std::function<void
(std::__regex::_PatternCursor const&,
std::__regex::_Results&)>::function(std::function<void
(std::__regex::_PatternCursor const&, std::__regex::_Results&)> const&)
ld: 0711-317 ERROR: Undefined symbol: .std::function<bool
(std::__regex::_PatternCursor const&)>::function(std::function<bool
(std::__regex::_PatternCursor const&)> const&)
collect2: error: ld returned 8 exit status
