Oh, sorry, I didn't read the question in detail about how -save-temps was making things work when they otherwise were not.
If you run clang with -### it'll show the command lines it's using, which should show you where it's trying to write the files so you can change that/make them writable. I'm not sure which variable is used to influence clang's temporary directory choice, though. On Thu, Aug 13, 2020 at 11:22 AM Danijel DOMAZET <p-danijel.doma...@devialet.com> wrote: > > Thanks Fang-rui. > I still haven't been able to fix the issue, I still use --save-temps, and > that makes linking very slow. > Why does this error go away when I set --save-temps, any idea?? > > > > On Thu, Aug 13, 2020 at 7:16 PM Fāng-ruì Sòng <mask...@google.com> wrote: >> >> On Thu, Aug 13, 2020 at 8:59 AM David Blaikie <dblai...@gmail.com> wrote: >> > >> > On Thu, Aug 13, 2020 at 2:59 AM Danijel DOMAZET >> > <p-danijel.doma...@devialet.com> wrote: >> > > >> > > Thanks David. >> > > Why do you think this could be about current dir? >> > > Isn't it about TMP (or TEMP or TMPDIR) environment variables? >> >> Neither the driver option -save-temps nor the linker option >> --save-temps (driver option -Wl,--save-temps) respects >> TMP/TEMP/TMPDIR. >> The temporary files are saved relative to the current working >> directory, which can be changed via -working-directory= >> >> > Because I ran it locally, and observed that that's where the files >> > were written to. >> > >> > > >> > > Thanks, >> > > Danijel Domazet >> > > >> > > >> > > On Thu, Aug 13, 2020 at 12:11 AM David Blaikie <dblai...@gmail.com> >> > > wrote: >> > >> >> > >> Looks like it writes the files to the current directory - do you have >> > >> permission to access the current directory? >> > >> >> > >> On Wed, Aug 12, 2020 at 6:28 AM Danijel DOMAZET via cfe-users >> > >> <cfe-users@lists.llvm.org> wrote: >> > >> > >> > >> > Hi clang users, >> > >> > I am using Windows10 + Cygwin + Eclipse + LLVM toolchain to build a >> > >> > C/C++ >> > >> > project. >> > >> > >> > >> > The files compile fine, but linking with `clang++` fails with multiple >> > >> > `error: unable to make temporary file: No such file or directory`. >> > >> > >> > >> > clang++ -o test "source1.bc" "source2.bc" "source3.bc" >> > >> > clang-8: error: unable to make temporary file: No such file or >> > >> > directory >> > >> > clang-8: error: unable to make temporary file: No such file or >> > >> > directory >> > >> > clang-8: error: unable to make temporary file: No such file or >> > >> > directory >> > >> > >> > >> > Linker generates one error per each object file. >> > >> > >> > >> > However, when I add the `-save-temps` option to linker, it works OK. >> > >> > >> > >> > I am launching Eclipse.exe from within Cygwin. I have tried to set >> > >> > TMP, >> > >> > TEMP to /temp, /temp/, /cygdrive/c/temp, etc, but nothing worked. >> > >> > >> > >> > What could be the problem? >> > >> > >> > >> > Thanks, >> > >> > Danijel Domazet >> > >> > >> > >> > >> > >> > >> > >> > - Confidential - >> > >> > _______________________________________________ >> > >> > cfe-users mailing list >> > >> > cfe-users@lists.llvm.org >> > >> > https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-users >> > > >> > > >> > > - Confidential - >> >> >> >> -- >> 宋方睿 > > > - Confidential - _______________________________________________ cfe-users mailing list cfe-users@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-users
