[ANNOUNCEMENT] Updated: gcc-6.3.0-2 (x86/x86_64)(Test)
Ross Smith
ross.smith@otoy.com
Fri Jul 28 14:13:00 GMT 2017
On 2017-07-28 09:45, Ken Brown wrote:
> On 7/27/2017 5:39 PM, Ross Smith wrote:
>> On 2017-07-28 09:19, Marco Atzeri wrote:
>>> On 27/07/2017 23:04, Ross Smith wrote:
>>>>
>>>> gcc 6.3 works fine for me unless I use threads. Any C++ program that
>>>> uses std::thread (and worked with the previous gcc) will fail. Simple
>>>> example:
>>>>
>>>> #include <iostream>
>>>> #include <thread>
>>>> void payload() {
>>>> std::cout << "Thread\n";
>>>> }
>>>> int main() {
>>>> std::cout << "Start\n";
>>>> std::thread t(payload);
>>>> t.join();
>>>> std::cout << "Done\n";
>>>> }
>>>>
>>>> Build and run with:
>>>>
>>>> g++ thread.cpp -o thread && ./thread || echo Fail
>>>>
>>>> This will print Fail, indicating that the executable errored out.
>>>> There's no other output. Sorry, I'm not familiar enough with gcc
>>>> debugging to narrow down the error further.
>>>>
>>>> Code that uses raw pthreads instead of the C++ API works fine.
>>>>
>>>> (I'm running 64-bit Cygwin on Windows 8.1.)
>>>>
>>>> Ross Smith
>>>>
>>>
>>> it works for me on W7-64
>>>
>>> ./thread || echo "fail"
>>> Start
>>> Thread
>>> Done
>>>
>>> $ g++ --version
>>> g++ (GCC) 6.3.0
>>
>> That's interesting. Maybe I have something wrong with my installation?
>> I updated the gcc-core, gcc-g++, and libgcc1 packages to the 6.3 test
>> version; was there something else I needed? (I found those by
>> searching the installed package list in the Cygwin installer for gcc
>> or g++, and seeing which ones offered the option of updating to 6.3;
>> there doesn't seem to be any way of checking what you actually need in
>> a case like this.)
>
> Click the test button when running setup. You'll see several other
> packages with versions 6.3.0-2, including libstdc++6.
Thanks! Yes, turns out I was missing some packages. Everything works
now. Sorry for the false alarm!
Ross Smith
--
Problem reports: http://cygwin.com/problems.html
FAQ: http://cygwin.com/faq/
Documentation: http://cygwin.com/docs.html
Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
More information about the Cygwin
mailing list