Bug 1218290
| Summary: | libstdc++ misses std::codecvt_byname constructors | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Thomas Sailer <fedora> | ||||||
| Component: | mingw-gcc | Assignee: | Erik van Pienbroek <erik-fedora> | ||||||
| Status: | CLOSED ERRATA | QA Contact: | Fedora Extras Quality Assurance <extras-qa> | ||||||
| Severity: | unspecified | Docs Contact: | |||||||
| Priority: | unspecified | ||||||||
| Version: | rawhide | CC: | erik-fedora, kalevlember, ktietz, rjones | ||||||
| Target Milestone: | --- | ||||||||
| Target Release: | --- | ||||||||
| Hardware: | All | ||||||||
| OS: | Unspecified | ||||||||
| Whiteboard: | |||||||||
| Fixed In Version: | mingw-gcc-5.1.0-2.fc22 | Doc Type: | Bug Fix | ||||||
| Doc Text: | Story Points: | --- | |||||||
| Clone Of: | Environment: | ||||||||
| Last Closed: | 2015-06-14 17:33:20 UTC | Type: | Bug | ||||||
| Regression: | --- | Mount Type: | --- | ||||||
| Documentation: | --- | CRM: | |||||||
| Verified Versions: | Category: | --- | |||||||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||||
| Cloudforms Team: | --- | Target Upstream Version: | |||||||
| Embargoed: | |||||||||
| Attachments: |
|
||||||||
Created attachment 1021773 [details]
simple testcase
Hi Thomas, I just tested the testcase here and it fails here when using mingw32-gcc-5.1.0-1.fc22 as well (the difference being the default c++ abi being used, on f22 it is the c++89 abi, on f23+ it is the c++11 abi). I just had a brief talk with Kai Tietz about this bug and we think this issue should be reported in upstream gcc bugtracker as we don't think it is a packaging issue. Could you please report this upstream? Hi Erik, It works for me using native gcc5. To me it looks like a DLL issue, not exporting the constructors, only the typeinfo. So whose scripts build the libstdc++ DLL? The libstdc++ DLL is built as part of the regular 'make' of gcc as can be observed at http://pkgs.fedoraproject.org/cgit/mingw-gcc.git/tree/mingw-gcc.spec#n279 (from line 279 to 342). We aren't doing anything special Could you please recompile gcc with the following patch: https://gcc.gnu.org/bugzilla/attachment.cgi?id=35668&action=edit Not yet, upstream has indicated in that bug report that the fix is wrong A patch for this is now in upstream cvs. URL: https://gcc.gnu.org/viewcvs?rev=224273&root=gcc&view=rev Log: PR libstdc++/66030 * config/abi/pre/gnu.ver: Export codecvt_byname and codecvt symbols for mingw32. Yeah I noticed it too, I'll prepare an updated package later today Could you test if http://koji.fedoraproject.org/koji/taskinfo?taskID=10014419 resolves the issue for you? I can now build boost again, so works for me. mingw-gcc-5.1.0-2.fc22 has been submitted as an update for Fedora 22. https://admin.fedoraproject.org/updates/mingw-gcc-5.1.0-2.fc22 This package is now also available as buildroot override for Fedora 22 mingw-gcc-5.1.0-2.fc22 has been pushed to the Fedora 22 stable repository. If problems still persist, please make note of it in this bug report. |
Created attachment 1021761 [details] simple testcase Description of problem: libstdc++ misses std::codecvt_byname constructors Version-Release number of selected component (if applicable): mingw32-gcc-c++-5.1.0-1.fc23.x86_64 How reproducible: always Steps to Reproduce: 1.i686-w64-mingw32-g++ -o x.exe x.c Actual results: /tmp/ccfC6MFP.o:x.c:(.text+0x74): undefined reference to `std::codecvt_byname<wchar_t, char, int>::codecvt_byname(char const*, unsigned int)' collect2: error: ld returned 1 exit status Expected results: x.exe built, silently