Hm, right, this broke after #384. You'll need either wine-binfmt or flatc installed on the host system and specified with -DFLATC=<path-to-flatc> when you invoke CMake.

I installed wine-binfmt and re-ran the build. It worked without any other problems. Thanks!

I've just run into this issue too. Installing wine-binfmt didn't solve the problem (flatc was not installed) for me in an ubuntu:20.04 docker container.

For anyone else interested, I had to install libflatbuffers-dev, rerun cmake as before but with the extra option -DFLATC=/usr/bin/flatc and rerun make. Thanks @whitequark for the instructions!

Should these additional steps be added to the README?

Done: 3544829

Hello,

I am having another issue, but I think it's also related to libflatbuffers-dev.
Problem is apt-get install libflatbuffers-dev = E: Unable to locate package libflatbuffers-dev

I am also having an error with OpenMP. I have no idea what it means !

OS is Ubuntu 18 on Win !
Ubuntu 18.04.1 LTS

I am trying to build an up2date windows version. Thanks for your help !

~/solvespace/build$ cmake .. -DCMAKE_TOOLCHAIN_FILE=../cmake/Toolchain-mingw64.cmake -DCMAKE_BUILD_TYPE=Release -DFLATC=$(which flatc)
-- Found OpenMP_C: -fopenmp
-- Found OpenMP_CXX: -fopenmp
-- Found OpenMP: TRUE
CMake Warning at CMakeLists.txt:105 (message):
OpenMP not found, geometric operations will be single-threaded

-- Using in-tree libdxfrw
-- Using in-tree flatbuffers
-- Using toolchain file: ../cmake/Toolchain-mingw64.cmake.
-- Using in-tree q3d
CMake Error at CMakeLists.txt:175 (add_subdirectory):
The source directory

/home/miljbee/solvespace/extlib/q3d

does not contain a CMakeLists.txt file.

-- Using in-tree zlib
-- Found ZLIB: zlibstatic (found version "1.2.9")
-- Using in-tree libpng
-- Found ZLIB: zlibstatic
-- Using in-tree freetype
-- Creating directory /home/miljbee/solvespace/build/extlib/freetype/include/freetype/config
-- Creating file /home/miljbee/solvespace/build/extlib/freetype/include/freetype/config/ftconfig.h
-- Creating file /home/miljbee/solvespace/build/extlib/freetype/include/freetype/config/ftoption.h
-- Using in-tree pixman
-- Building pixman version 0.34.1
-- Found OpenMP_C: -fopenmp
-- Found OpenMP_CXX: -fopenmp
-- Could NOT find PkgConfig (missing: PKG_CONFIG_EXECUTABLE)
-- Using in-tree cairo
-- Building cairo version 1.15.2
-- Using in-tree ANGLE
CMake Warning at CMakeLists.txt:303 (message):
Gettext not found, translations will not be updated

I am trying to build an up2date windows version.

You're building on Windows, right? Why not use MSVC?

I am trying to build an up2date windows version.

You're building on Windows, right? Why not use MSVC?

Because I wanted to try that way !

Ok.

Problem is apt-get install libflatbuffers-dev = E: Unable to locate package libflatbuffers-dev

Ubuntu 18.04 doesn't have flatbuffers in the repository. Can you use Ubuntu 20.04? That's the up-to-date LTS release, so I assume there should be no issues with it.

I am also having an error with OpenMP. I have no idea what it means !

Some recent performance improvements require OpenMP. However, MinGW compilers shipped with Debian/Ubuntu (really, most MinGW compilers shipped by anyone) don't support it. So your performance will be the same as it was before.

Thanks for your help. Unfortunately Ubuntu can't be upgraded to 20 on win for now.
So I downloaded VS, and it was so easy to build ... Just entered the git address, VS downloaded the code and ran cmake automatically, I just had to hit build ... and got my solvespace.exe. The exe file is big (15MO) I think it might be a debug version. I have to find how to switch to release.

By the way : awesome software, I love it, thanks for your work.

Sweet! I'm glad it was easy for you and that you like it.