[cfe-users] Adding linker flag `-save-temps` resolves the clang-8 error: "unable to make temporary file"

[David Blaikie via cfe-users]

On Thu, Aug 13, 2020 at 2:59 AM Danijel DOMAZET
<p-danijel.domazet at 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?

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 <dblaikie at 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 at 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
>> >
>> >
>> >
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