Cross compiling windows with ubuntu fails on etc2comp build #9258

AlexHolly · 2017-06-18T21:29:55Z

Master branch

sudo apt-get install mingw-w64

scons p=windows

It stopped working ~5-10 days ago.

thirdparty/etc2comp/EtcImage.cpp: In member function 'Etc::Image::EncodingStatus Etc::Image::Encode(Etc::Image::Format, Etc::ErrorMetric, float, unsigned int, unsigned int)':
thirdparty/etc2comp/EtcImage.cpp:259:64: error: invalid use of incomplete type 'class std::future<void>'
   std::future<void> *handle = new std::future<void>[a_uiMaxJobs];
                                                                ^
In file included from thirdparty/etc2comp/EtcImage.cpp:40:0:
/usr/lib/gcc/i686-w64-mingw32/6.2-win32/include/c++/future:115:11: note: declaration of 'class std::future<void>'
     class future;
           ^~~~~~
thirdparty/etc2comp/EtcImage.cpp:268:12: error: invalid use of incomplete type 'class std::future<void>'
    handle[i] = async(std::launch::async, &Image::RunFirstPass, this, i, uiNumThreadsNeeded);
            ^
In file included from thirdparty/etc2comp/EtcImage.cpp:40:0:
/usr/lib/gcc/i686-w64-mingw32/6.2-win32/include/c++/future:115:11: note: declaration of 'class std::future<void>'
     class future;
           ^~~~~~
thirdparty/etc2comp/EtcImage.cpp:268:91: error: invalid use of incomplete type 'class std::future<void>'
 ndle[i] = async(std::launch::async, &Image::RunFirstPass, this, i, uiNumThreadsNeeded);
                                                                                      ^
In file included from thirdparty/etc2comp/EtcImage.cpp:40:0:
/usr/lib/gcc/i686-w64-mingw32/6.2-win32/include/c++/future:115:11: note: declaration of 'class std::future<void>'
     class future;
           ^~~~~~
thirdparty/etc2comp/EtcImage.cpp:275:12: error: invalid use of incomplete type 'class std::future<void>'
    handle[i].get();
            ^
In file included from thirdparty/etc2comp/EtcImage.cpp:40:0:
/usr/lib/gcc/i686-w64-mingw32/6.2-win32/include/c++/future:115:11: note: declaration of 'class std::future<void>'
     class future;
           ^~~~~~
thirdparty/etc2comp/EtcImage.cpp:275:13: error: invalid use of incomplete type 'class std::future<void>'
    handle[i].get();
             ^
In file included from thirdparty/etc2comp/EtcImage.cpp:40:0:
/usr/lib/gcc/i686-w64-mingw32/6.2-win32/include/c++/future:115:11: note: declaration of 'class std::future<void>'
     class future;
           ^~~~~~
thirdparty/etc2comp/EtcImage.cpp:330:107: error: invalid use of incomplete type 'class std::future<unsigned int>'
 gned int> *handleToBlockEncoders = new std::future<unsigned int>[uiNumThreadsNeeded-1];
                                                                                      ^
In file included from thirdparty/etc2comp/EtcImage.cpp:40:0:
/usr/lib/gcc/i686-w64-mingw32/6.2-win32/include/c++/future:115:11: note: declaration of 'class std::future<unsigned int>'
     class future;
           ^~~~~~
thirdparty/etc2comp/EtcImage.cpp:334:30: error: invalid use of incomplete type 'class std::future<unsigned int>'
       handleToBlockEncoders[i] = async(std::launch::async, &Image::IterateThroughWorstBlocks, this, blocksToIterateThisPass, i, uiNumThreadsNeeded);
                              ^
In file included from thirdparty/etc2comp/EtcImage.cpp:40:0:
/usr/lib/gcc/i686-w64-mingw32/6.2-win32/include/c++/future:115:11: note: declaration of 'class std::future<unsigned int>'
     class future;
           ^~~~~~
thirdparty/etc2comp/EtcImage.cpp:334:147: error: invalid use of incomplete type 'class std::future<unsigned int>'
 mage::IterateThroughWorstBlocks, this, blocksToIterateThisPass, i, uiNumThreadsNeeded);
                                                                                      ^
In file included from thirdparty/etc2comp/EtcImage.cpp:40:0:
/usr/lib/gcc/i686-w64-mingw32/6.2-win32/include/c++/future:115:11: note: declaration of 'class std::future<unsigned int>'
     class future;
           ^~~~~~
thirdparty/etc2comp/EtcImage.cpp:340:50: error: invalid use of incomplete type 'class std::future<unsigned int>'
       uiIteratedBlocks += handleToBlockEncoders[i].get();
                                                  ^
In file included from thirdparty/etc2comp/EtcImage.cpp:40:0:
/usr/lib/gcc/i686-w64-mingw32/6.2-win32/include/c++/future:115:11: note: declaration of 'class std::future<unsigned int>'
     class future;
           ^~~~~~
thirdparty/etc2comp/EtcImage.cpp:340:51: error: invalid use of incomplete type 'class std::future<unsigned int>'
       uiIteratedBlocks += handleToBlockEncoders[i].get();
                                                   ^
In file included from thirdparty/etc2comp/EtcImage.cpp:40:0:
/usr/lib/gcc/i686-w64-mingw32/6.2-win32/include/c++/future:115:11: note: declaration of 'class std::future<unsigned int>'
     class future;
           ^~~~~~
thirdparty/etc2comp/EtcImage.cpp:343:15: warning: possible problem detected in invocation of delete [] operator: [-Wdelete-incomplete]
      delete[] handleToBlockEncoders;
               ^~~~~~~~~~~~~~~~~~~~~
thirdparty/etc2comp/EtcImage.cpp:330:33: warning: 'handleToBlockEncoders' has incomplete type
      std::future<unsigned int> *handleToBlockEncoders = new std::future<unsigned int>[uiNumThreadsNeeded-1];
                                 ^~~~~~~~~~~~~~~~~~~~~
In file included from thirdparty/etc2comp/EtcImage.cpp:40:0:
/usr/lib/gcc/i686-w64-mingw32/6.2-win32/include/c++/future:115:11: note: declaration of 'class std::future<unsigned int>'
     class future;
           ^~~~~~
thirdparty/etc2comp/EtcImage.cpp:343:15: note: neither the destructor nor the class-specific operator delete [] will be called, even if they are declared when the class is defined
      delete[] handleToBlockEncoders;
               ^~~~~~~~~~~~~~~~~~~~~
thirdparty/etc2comp/EtcImage.cpp:356:12: error: invalid use of incomplete type 'class std::future<void>'
    handle[i] = async(std::launch::async, &Image::SetEncodingBits, this, i, a_uiJobs);
            ^
In file included from thirdparty/etc2comp/EtcImage.cpp:40:0:
/usr/lib/gcc/i686-w64-mingw32/6.2-win32/include/c++/future:115:11: note: declaration of 'class std::future<void>'
     class future;
           ^~~~~~
thirdparty/etc2comp/EtcImage.cpp:356:84: error: invalid use of incomplete type 'class std::future<void>'
    handle[i] = async(std::launch::async, &Image::SetEncodingBits, this, i, a_uiJobs);
                                                                                    ^
In file included from thirdparty/etc2comp/EtcImage.cpp:40:0:
/usr/lib/gcc/i686-w64-mingw32/6.2-win32/include/c++/future:115:11: note: declaration of 'class std::future<void>'
     class future;
           ^~~~~~
thirdparty/etc2comp/EtcImage.cpp:362:12: error: invalid use of incomplete type 'class std::future<void>'
    handle[i].get();
            ^
In file included from thirdparty/etc2comp/EtcImage.cpp:40:0:
/usr/lib/gcc/i686-w64-mingw32/6.2-win32/include/c++/future:115:11: note: declaration of 'class std::future<void>'
     class future;
           ^~~~~~
thirdparty/etc2comp/EtcImage.cpp:362:13: error: invalid use of incomplete type 'class std::future<void>'
    handle[i].get();
             ^
In file included from thirdparty/etc2comp/EtcImage.cpp:40:0:
/usr/lib/gcc/i686-w64-mingw32/6.2-win32/include/c++/future:115:11: note: declaration of 'class std::future<void>'
     class future;
           ^~~~~~
thirdparty/etc2comp/EtcImage.cpp:369:12: warning: possible problem detected in invocation of delete [] operator: [-Wdelete-incomplete]
   delete[] handle;
            ^~~~~~
thirdparty/etc2comp/EtcImage.cpp:259:22: warning: 'handle' has incomplete type
   std::future<void> *handle = new std::future<void>[a_uiMaxJobs];
                      ^~~~~~
In file included from thirdparty/etc2comp/EtcImage.cpp:40:0:
/usr/lib/gcc/i686-w64-mingw32/6.2-win32/include/c++/future:115:11: note: declaration of 'class std::future<void>'
     class future;
           ^~~~~~
thirdparty/etc2comp/EtcImage.cpp:369:12: note: neither the destructor nor the class-specific operator delete [] will be called, even if they are declared when the class is defined
   delete[] handle;
            ^~~~~~

Edit
Kubuntu 17.04
gcc (Ubuntu 6.3.0-12ubuntu2) 6.3.0 20170406

The text was updated successfully, but these errors were encountered:

akien-mga · 2017-06-19T08:27:29Z

Ubuntu and mingw versions?

akien-mga · 2017-06-30T08:55:10Z

Does it fail only when cross-compiling to win32, or also to win64?

Remove rg-etc1 code. Also updated travis to use ubuntu 14.04. Fixes #8457.

akien-mga · 2017-06-30T10:16:21Z

Does it fail only when cross-compiling to win32, or also to win64?

Apparently both, as @Keetz had the same issue for win64: https://pastebin.com/vsdXEifT

akien-mga · 2017-06-30T18:32:01Z

Trying on Mageia, it builds fine both in 32-bit and 64-bit (I built with the changes of #9455, but I don't expect they would have an influence on this issue).

MinGW-w64 5.0.1 with GCC 6.1.0.

akien-mga · 2017-06-30T19:27:39Z

It also builds fine on Travis CI btw, with this system:
Ubuntu 14.04.3, MinGW-w64 3.1.0 with GCC 4.8.2.

So I'm not sure why it wouldn't work with versions in between like you have.

ippan · 2017-07-05T07:52:16Z

same issue on
gcc version 5.4.0 20160609 (Ubuntu 5.4.0-6ubuntu1~16.04.4)

akien-mga · 2017-07-05T08:28:27Z

The fix is to change distro. So far it seems to fail only on Ubuntu :P </troll>

Xrayez · 2017-07-12T07:55:56Z

Are you guys using WSL (windows subsystem for linux) to compile Godot for Windows? I'm having the same issue here.

gcc (Ubuntu 5.4.0-6ubuntu1~16.04.4) 5.4.0 20160609
Windows 10 version 1703 build 15063.483

touilleMan · 2017-07-16T12:41:29Z

Same issue here with Ubuntu 16.04 with i686-w64-mingw32-gcc (GCC) 5.3.1 20160211 :'-(

touilleMan · 2017-07-16T14:17:02Z

I found the trouble: by default mingw on ubuntu works in win32 mode (which doesn't support thread), if you compile with posix mode it works.

To use posix mode for mingw by default:

$ sudo update-alternatives --config x86_64-w64-mingw32-gcc
<choose x86_64-w64-mingw32-gcc-posix from the list>
$ sudo update-alternatives --config x86_64-w64-mingw32-g++
<choose x86_64-w64-mingw32-g++-posix from the list>

It maybe worth a line in the documentation, what do you think ?

AlexHolly · 2017-07-16T16:48:18Z

Hmm still not working.
I also get this message when I switch something.

update-alternatives: warning: skip creation of /usr/bin/x86_64-w64-mingw32-gcc-6 because associated file /usr/bin/x86_64-w64-mingw32-gcc-6-posix (of link group x86_64-w64-mingw32-gcc) doesn't exist

sketchyfun · 2017-07-18T10:24:54Z

I was having the same problem on Ubuntu, but I managed to get it working by including bits=64 in the scons command

Xrayez · 2017-07-18T10:43:21Z

@sketchyfun I had the same issue compiling it with either 32 or 64 bits. Changing to posix mode with the above method solved it for me.

sketchyfun · 2017-07-18T10:47:54Z

@Xrayez I tried that, but I received the same error as @AlexHolly. Either way, hopefully a combination of this information will be of help to other people :)

AlexHolly · 2017-07-18T12:56:58Z

Use @touilleMan solution an switch to posix
Use @sketchyfun solution and run with scons p=windows bits=64

It works again, thanks.

Is there a bug in the scons or why is it not using bits=64 as default on a 64bit system?

Keetz · 2017-07-18T12:59:23Z

@AlexHolly in my experience it is only p=windows that doesn't use 64 bits as default. Whenever i build to x11 it defaults to 64 bits just fine.

akien-mga · 2017-07-18T13:37:36Z

The bits logic on Windows is pretty convoluted, both for MinGW and for MSVC, so no idea why it defaults to 32-bit. At least it seems to try to detect 64-bit so I guess it's a bug.

vnen · 2017-07-19T01:49:21Z

I believe the logic is only for MSVC, because it requires the proper compiler to be already set up. With MinGW you can have both compilers available and select the right one by changing the prefix.

reduz · 2017-08-07T01:12:54Z

so, issue or not?

akien-mga · 2017-10-23T18:18:07Z

Got a report on Discord of someone running into this issue on Lubuntu (version unknown) with MinGW-w64 4.0.4.

Looks like that version is buggy, so the fix would be: get a newer mingw.
Edit: There's a workaround documented above: #9258 (comment)

tofutim · 2018-03-26T22:21:54Z

does anyone know if it is possible to switch to posix in shell without manually entering the number?

AlexHolly · 2018-03-26T23:04:15Z

If you try to build some CI you should try to use a proper docker-container where this is not needed.
This one works for me FROM debian:jessie

If not this should work.

RUN echo "1"| sudo update-alternatives --config x86_64-w64-mingw32-gcc
RUN echo "1"| sudo update-alternatives --config x86_64-w64-mingw32-g++

nathanfranke · 2021-10-09T13:56:16Z

does anyone know if it is possible to switch to posix in shell without manually entering the number?

This should work:

sudo update-alternatives --set x86_64-w64-mingw32-gcc /usr/bin/x86_64-w64-mingw32-gcc-posix
sudo update-alternatives --set x86_64-w64-mingw32-g++ /usr/bin/x86_64-w64-mingw32-g++-posix

godotengine/godot#9258 (comment)

akien-mga added bug platform:linuxbsd platform:windows topic:buildsystem labels Jun 24, 2017

akien-mga changed the title ~~Cross compiling windows with ubuntu~~ Cross compiling windows with ubuntu fails on etc2comp build Jun 24, 2017

akien-mga added this to the 3.0 milestone Jun 24, 2017

akien-mga referenced this issue Jun 30, 2017

Add ETC1/ETC2 compression support though etc2comp.

6a9c990

Remove rg-etc1 code. Also updated travis to use ubuntu 14.04. Fixes #8457.

fire mentioned this issue Sep 16, 2017

Support POSIX threading model for MINGW tpoechtrager/wclang#37

Open

akien-mga closed this as completed in godotengine/godot-docs@1c8b7ea Oct 23, 2017

akien-mga mentioned this issue Oct 26, 2017

3.0 Cannot compile by MinGW-W64 #12417

Closed

bruvzg mentioned this issue Jul 24, 2018

MinGW cross-compilation broken due to std::futures #20405

Closed

bruvzg mentioned this issue Sep 9, 2018

i faced issue when build windows export template on linux mint 18 #21901

Closed

c42f mentioned this issue Oct 16, 2018

Make with override XC_HOST = i686-w64-mingw32 fails with cp JuliaLang/julia#29477

Closed

bruvzg mentioned this issue Oct 26, 2019

Error when compiling the file thirdparty\etc2comp\EtcImage.cpp #33087

Closed

Atlinx mentioned this issue Sep 22, 2022

Errors when building godot 3.x mono windows on ubuntu 20.04 godotengine/godot-mono-builds#71

Closed

saukap added a commit to saukap/gofer that referenced this issue Dec 27, 2022

try posix version

5c22133

godotengine/godot#9258 (comment)

LupinThidr mentioned this issue Oct 20, 2023

Instructions for compiling spice2x on Ubuntu 22.04 spice2x/spice2x.github.io#58

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Cross compiling windows with ubuntu fails on etc2comp build #9258

Cross compiling windows with ubuntu fails on etc2comp build #9258

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Cross compiling windows with ubuntu fails on etc2comp build #9258

Cross compiling windows with ubuntu fails on etc2comp build #9258

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