Editing Building on Microsoft Windows
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If you want to contribute changes to C++ files or are interested in testing the latest development or (unreleased) stable release, you can build Octave from source. | If you want to contribute changes to C++ files or are interested in testing the latest development or (unreleased) stable release, you can build Octave from source. | ||
It seems to be possible to build Octave natively on Windows with the MSYS2 shell. (Be aware that this might take some time.) It is also possible to build Octave on Windows machines using virtual machines or Microsoft's Windows Subsystem for Linux | It seems to be possible to build Octave natively on Windows with the MSYS2 shell. (Be aware that this might take some time.) It is also possible to build Octave on Windows machines using virtual machines or Microsoft's Windows Subsystem for Linux. | ||
==Virtual Machine== | ==Virtual Machine== | ||
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Use the "MSYS2 MinGW 64bit" shell for building Octave. | Use the "MSYS2 MinGW 64bit" shell for building Octave. | ||
The following command can be used to install the necessary and optional build | The following command can be used to install the necessary and optional build dependencies in MSYS2: | ||
<syntaxhighlight lang="bash">pacman -S base-devel mingw-w64-x86_64- | <syntaxhighlight lang="bash">pacman -S base-devel mingw-w64-x86_64-toolchain mingw-w64-x86_64-lapack mingw-w64-x86_64-openblas mingw-w64-x86_64-pcre \ | ||
mingw-w64-x86_64-arpack mingw-w64-x86_64-curl mingw-w64-x86_64-cvode mingw-w64-x86_64-fftw mingw-w64-x86_64-fltk mingw-w64-x86_64-gl2ps mingw-w64-x86_64-glpk mingw-w64-x86_64-ghostscript mingw-w64-x86_64-gnuplot mingw-w64-x86_64-graphicsmagick mingw-w64-x86_64-hdf5 mingw-w64-x86_64-libsndfile mingw-w64-x86_64-portaudio mingw-w64-x86_64-qhull mingw-w64-x86_64-qrupdate mingw-w64-x86_64-qscintilla mingw-w64-x86_64-qt5 mingw-w64-x86_64-rapidjson mingw-w64-x86_64-suitesparse \ | |||
git mercurial mingw-w64-x86_64-ccache mingw-w64-x86_64-icoutils mingw-w64-x86_64-librsvg texinfo | git mercurial mingw-w64-x86_64-ccache mingw-w64-x86_64-icoutils mingw-w64-x86_64-librsvg texinfo</syntaxhighlight> | ||
Using ccache is optional. It speeds up compilation time but needs several GiB free disk space for its cache. If disk space is an issue, this step can be skipped. To prepend the path to the ccache helper scripts to the front of the PATH variable, add the following line near the end of the {{Path|.bash_profile}} file in your MSYS2 {{Path|$HOME}} directory: | Using ccache is optional. It speeds up compilation time but needs several GiB free disk space for its cache. If disk space is an issue, this step can be skipped. To prepend the path to the ccache helper scripts to the front of the PATH variable, add the following line near the end of the {{Path|.bash_profile}} file in your MSYS2 {{Path|$HOME}} directory: | ||
<syntaxhighlight lang="bash">export PATH="/mingw64/lib/ccache/bin:$PATH"</syntaxhighlight> | <syntaxhighlight lang="bash">export PATH="/mingw64/lib/ccache/bin:$PATH"</syntaxhighlight> | ||
Like installing the build dependencies, this has to be done only once. | Like installing the build dependencies, this has to be done only once. | ||
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Configure with the following flags: | Configure with the following flags: | ||
<syntaxhighlight lang="bash">../configure \ | <syntaxhighlight lang="bash">../configure \ | ||
CC="x86_64-w64-mingw32-gcc" \ | |||
CXX="x86_64-w64-mingw32-g++" \ | |||
F77="x86_64-w64-mingw32-gfortran" \ | |||
--disable-docs \ | --disable-docs \ | ||
ac_cv_search_tputs=-ltermcap</syntaxhighlight> | |||
And build with the following | And build with the following flags: | ||
<syntaxhighlight lang="bash">make | <syntaxhighlight lang="bash">make -C ./.build all -j8 V=1 \ | ||
FLTK_LIBS="-lfltk_gl -lopengl32 -lglu32 -lfltk -lpthread" \ | |||
PORTAUDIO_LIBS="-lportaudio -ldsound -lsetupapi -lwinmm -lm -lole32" | |||
</syntaxhighlight> | |||
If you didn't build with FLTK or PortAudio, omit overriding the respective flags. | |||
Octave doesn't run correctly from the MSYS2 shell due to issues with readline and backslash as a file separator. To be able to work with it anyway, install it with the following commands (from the MSYS2 shell in {{Path|.build}}): | |||
<syntaxhighlight lang="bash">make install | <syntaxhighlight lang="bash">make install | ||
ln -sf /mingw64/libexec/octave/7.0.0/exec/x86_64-w64-mingw32/octave-gui.exe /mingw64/bin/octave-gui.exe | |||
ln -sf /mingw64/libexec/octave/7.0.0/exec/x86_64-w64-mingw32/octave-svgconvert.exe /mingw64/bin/octave-svgconvert.exe</syntaxhighlight> | ln -sf /mingw64/libexec/octave/7.0.0/exec/x86_64-w64-mingw32/octave-svgconvert.exe /mingw64/bin/octave-svgconvert.exe</syntaxhighlight> | ||
The latter two symlinks are only needed when building the GUI (i.e., Qt is not disabled). | |||
Start Octave from a CMD shell (or with a batch script) with the following commands (assuming MSYS2 was installed in its default location): | |||
<syntaxhighlight lang="batch">set PATH=C:\msys64\mingw64\bin;C:\msys64\usr\bin;%PATH% | <syntaxhighlight lang="batch">set PATH=C:\msys64\mingw64\bin;C:\msys64\usr\bin;%PATH% | ||
set MSYSTEM=MINGW64 | set MSYSTEM=MINGW64 |