The process below should work just as well with Mingw32. The difference is that you need to replace x86_64 by i686 in the pacman commands, and open mingw32.exe instead of mingw64.exe for the actually compilation procedure. The MSYS2 and mingw32.exe may also be in a folder C:/msys32/ instead of C:/msys64/.
Install MSYS2 by following the procedure at: http://msys2.github.io/
QT5 and compilation tools
Open MSYS2 (MSYS2.exe, likely located in
C:/msys64/), install cmake, git (sys/git), make (sys/make), toolchain (includes gcc):
pacman -Sy git pacman -Sy make pacman -Sy cmake pacman -Sy ming-w64-x86_64-toolchain
Still in MSYS2, install qt5:
pacman -Sy mingw-w64-x86_64-qt5
Still in MSYS2, continue by installing libraries that you will need: freeimage, gl2ps,freetype, libpng, tcl, tk. This list may be too extensive (I cannot recall if tcl and tk are actually necessary for compiling OCE).
pacman -Sy mingw-w64-x86_64-freeimage pacman -Sy mingw-w64-x86_64-gl2ps pacman -Sy mingw-w64-x86_64-freetype pacman -Sy mingw-w64-x86_64-libpng pacman -Sy mingw-w64-x86_64-tcl pacman -Sy mingw-w64-x86_64-tk
Note that the libraries freetype and libpng should already be installed with qt5, but I added them just in case.
Now, close down MSYS2.exe and open mingw64.exe instead (likely located in
C:/msys64/, like MSYS2.exe).
cd to the folder
C:/msys64/, and download OCE using git:
cd /c/msys64/ git clone https://github.com/tpaviot/oce.git
Once OCE is downloaded, follow the "Building" section at https://github.com/tpaviot/oce/wiki/Build-%28MinGW-w64%29 (I do this using
cmake-gui.exe), taking into account the following:
- You don't need to use the Bundle as all those libraries are already available under MSYS2.
- You must add to
CMAKE_NEED_RESPONSE=YESto Cmake before launching the Configure. If you correct this after the error has occured (it's a "linking error, argument list too long" error that happens after approx. 40% of the compilation), then compilation will restart from scratch. So, I recommend adding this upfront, and not wait for the error. Otherwise, you'll have wasted some hours.
- When you Configure, use MSYS Makefiles and set
C:/msys64/usr/bin/make.exe. The rest should be straight-forward. Once Configure is successful, run Generate and finally close cmake-gui.
cd into your build directory and run
Remember that it's probably a good idea to use
-j4 (or more, if you have).
As usual, compilation takes forever, but it goes smoothly (only one of the tests failed at the very end for me; but was not important).