Control: forwarded -1 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88568
On Fri, 1 Mar 2019 21:54:17 +0100, Stephen Kitt <sk...@debian.org> wrote: > On Mon, 25 Feb 2019 20:15:56 +0900, "K.Ohta" <whatisthis.sow...@gmail.com> > wrote: > > > Le 25/02/2019 07:49, Kyuma Ohta a écrit : > > > > When building software with Qt, internal compiler error happend > > > > useally. > > > > > > Where did you get your build of Qt? Did you build it yourself? > > > > Yes. I built from source-code at mirror site of Qt project (i.e. > > ftp.jaist.ac.jp), but failed as same of this reason. > > > > > > I built from https://github.com/Artanejp/common_source_project_fm7 > > > > with Qt5.12,*BUT* same issue happens at building Qt5.12.1 with this > > > > toolchain. > > > > > > > > This issue has *not* happend 8.2.0-17 and before version,only this > > > > version. > > > > > > To clarify, am I right in understanding the following? > > > > > > * common_source_project_fm7 build OK with gcc-mingw-w64 8.2.0-17+21, > > > with both Qt 5.12 and Qt 5.12.1 > > > * common_source_project_fm7 causes an ICE with gcc-mingw-w64 > > > 8.2.0-21+21.1, with both Qt 5.12 and Qt 5.12.1 > > > > > > Is that correct? > > > > Yes.(At least mainly)As of internal-compiler-error caused by Qt's these > > headers. > > > > > If you can tell me where you installed Qt from, I’ll try to reproduce > > > this and narrow the problem down. Given the small amount of changes > > > between gcc-mingw-w64 21 and 21.1, it’s likely a regression between > > > gcc 8.2.0-17 and 8.2.0-21... > > > > I cross-build Qt with debian's tool chain and these attached scripts. > > A config script, config_sample.5.12.sh and a build-wrapper script > > make_cross.sh. # These includes some fixed directories, please modify > > them. > > Thanks for all the information, I’ve reproduced this. It’s a regression > somewhere on the GCC 8 branch, I’m currently bisecting to find the exact > breaking patch. This is a regression caused by a dllimport fix in GCC 8.3 (and present in Debian’s later 8.2 builds) — see https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88568 for details. Regards, Stephen
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