Try this command and reply with its output:
objdump -f
"C:/builds/ab/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/6.1.0\libstdc++.a"
| grep "cow-stdexcept.o"
------------------
Best regards,
lh_mouse
2016-07-24
-------------------------------------------------------------
发件人：Ricardo Constantino <wiia...@gmail.com>
发送日期：2016-07-24 23:10
收件人：msys2-users
抄送：
主题：[Msys2-users] Relocation errors when linking with static libstdc++
starting with GCC 6 (64-bit only)
Both FFmpeg and mpv when linking with -lstdc++ fail with these exact errors
when compiling with x86_64-w64-mingw32 GCC 6.1
There errors are only fixed by not including libs which need libstdc++ and use
exceptions or by reverting to GCC 5.4. Haven't tried not using static
libstdc++, since I'd prefer not depending on DLLs not included with Windows.
Something like this probably needs to be done in mingw64 as well:
https://github.com/gcc-mirror/gcc/commit/40c727c8722ab47a821e2fe371f1b6b96be0200d
C:/builds/ab/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/6.1.0\libstdc++.a(cow-stdexcept.o):(.text$_Z35_txnal_cow_string_C1_for_exceptionsPvPKcS_+0x2c):
relocation truncated to fit: R_X86_64_PC32 against undefined symbol `_ITM_RU1'
C:/builds/ab/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/6.1.0\libstdc++.a(cow-stdexcept.o):(.text$_Z35_txnal_cow_string_C1_for_exceptionsPvPKcS_+0x39):
relocation truncated to fit: R_X86_64_PC32 against undefined symbol
`transaction clone for operator new[](unsigned long long)'
C:/builds/ab/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/6.1.0\libstdc++.a(cow-stdexcept.o):(.text$_Z35_txnal_cow_string_C1_for_exceptionsPvPKcS_+0x5d):
relocation truncated to fit: R_X86_64_PC32 against undefined symbol
`_ITM_memcpyRtWn'
C:/builds/ab/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/6.1.0\libstdc++.a(cow-stdexcept.o):(.text$_Z23_txnal_cow_string_c_strPKv+0x1):
relocation truncated to fit: R_X86_64_PC32 against undefined symbol `_ITM_RU8'
C:/builds/ab/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/6.1.0\libstdc++.a(cow-stdexcept.o):(.text$_Z23_txnal_sso_string_c_strPKv+0x1):
relocation truncated to fit: R_X86_64_PC32 against undefined symbol `_ITM_RU8'
C:/builds/ab/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/6.1.0\libstdc++.a(cow-stdexcept.o):(.text$_Z20_txnal_cow_string_D1Pv+0x5):
relocation truncated to fit: R_X86_64_PC32 against undefined symbol `_ITM_RU8'
C:/builds/ab/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/6.1.0\libstdc++.a(cow-stdexcept.o):(.text$_Z20_txnal_cow_string_D1Pv+0x1e):
relocation truncated to fit: R_X86_64_PC32 against undefined symbol
`_ITM_addUserCommitAction'
C:/builds/ab/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/6.1.0\libstdc++.a(cow-stdexcept.o):(.text$_ZGTtNSt11logic_errorC1EPKc+0x2e):
relocation truncated to fit: R_X86_64_PC32 against undefined symbol
`_ITM_memcpyRnWt'
C:/builds/ab/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/6.1.0\libstdc++.a(cow-stdexcept.o):(.text$_ZGTtNSt11logic_errorC1ERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE+0x2e):
relocation truncated to fit: R_X86_64_PC32 against undefined symbol
`_ITM_memcpyRnWt'
C:/builds/ab/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/6.1.0\libstdc++.a(cow-stdexcept.o):(.text$_ZGTtNSt11logic_errorC1ERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE+0x36):
relocation truncated to fit: R_X86_64_PC32 against undefined symbol `_ITM_RU8'
C:/builds/ab/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/6.1.0\libstdc++.a(cow-stdexcept.o):(.text$_ZGTtNSt11logic_errorD0Ev+0x1a):
additional relocation overflows omitted from the output
collect2.exe: error: ld returned 1 exit status
It can be reproduced with:
```
(open mingw64-shell)
export CC=gcc
#MINGW_PREFIX=/mingw64
git clone https://github.com/lachs0r/rubberband.git
cd rubberband
make -j4 PREFIX="$MINGW_PREFIX" install-static
git clone https://git.ffmpeg.org/ffmpeg.git
cd ffmpeg
./configure --enable-librubberband --pkg-config-flags=--static --arch=x86_64 \
--disable-everything --enable-filter=rubberband --enable-gpl
make -j4
```
Should error out in the end, linking ffmpeg.exe.
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What NetFlow Analyzer can do for you? Monitors network bandwidth and traffic
patterns at an interface-level. Reveals which users, apps, and protocols are
consuming the most bandwidth. Provides multi-vendor support for NetFlow,
J-Flow, sFlow and other flows. Make informed decisions using capacity planning
reports.http://sdm.link/zohodev2dev
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