MXE

Revision as of 09:23, 5 August 2019 by Siko1056 (talk | contribs) (Some more tuning the info.)
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MXE-Octave was forked 2012 from the MXE project and is useful for building Octave in the following scenarios[1]:

  1. Cross-compilation for MS Windows (see also Windows_Installer) and other platforms.
  2. Building Octave on outdated Linux systems (e.g. only an old GCC version is available).
  3. Building Octave without root permission.
Warning icon.svg
MXE-Octave is not the best choice for building Octave, if your system already provides recent versions of GCC and other required build dependencies. See Category:Installation for other install options.

Example of compiling MXE-Octave

Preparation

  1. Install all requirements of MXE Octave.
  2. Decide for an installation directory (e.g. ~/mxe-octave).
  3. cd ~
  4. hg clone https://hg.octave.org/mxe-octave mxe-octave
  5. cd mxe-octave
  6. ./bootstrap

Configuration

For a comprehensive list of configuration options with a short explanation, type ./configure --help. See also the known issues below.

./configure \
    --prefix=$HOME/mxe-octave \
    --enable-native-build \
    --enable-octave=release \
    --enable-64 \
    --enable-fortran-int64 \
    --enable-pic-flag \
    --enable-openblas \
    --enable-jit

Build

make all openblas JOBS=4 (adapt the value of the variable JOBS to your needs).

Replace reference BLAS by OpenBLAS

In general using the OpenBLAS library results in faster matrix-vector operations compared to the reference BLAS library.

  1. cd ~/mxe-octave/usr/lib
  2. mv libblas.so libblas.so.reference
  3. ln -s libopenblas.so libblas.so

Run

  1. MXE-Octave will exist in ~/mxe-octave/usr/bin
  2. Add the command octave as alias to your .bashrc file: alias octave=~/mxe-octave/usr/bin/octave
  3. Start MXE-Octave by typing octave.

Known issues

gnuplot

The gnuplot built by MXE-Octave does not support cairo based terminals and lua/tikz terminals. If you want uses those features, prepare gnuplot with those features and type in the Octave command prompt

 >> gnuplot_binary /usr/bin/gnuplot

Build errors on older systems

On some older systems, it might be useful to consider adding the configuration options

  • --disable-docs
  • --disable-system-opengl
  • --disable-system-x11-libs
  • --disable-java

in case of building errors.


References