Building on Cygwin platform: Difference between revisions

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Octave can be built on cygwin too !
#REDIRECT [[Octave for Microsoft Windows#GNU Octave on cygwin]]
 
==Pre-requisites==
Setup your system the same way as described on the page [[Octave for Debian systems]]. The next step, required to generate the documentation, is to tweak a bit the texlive configuration file: (remember cygwin has no sudo command)
 
    vi /usr/share/texmf-dist/web2c
   
Change
   
    TEXMFLOCAL = $TEXMFROOT/texmf-site
 
into
 
    TEXMFLOCAL = $TEXMFROOT/texmf-site:$TEXMFROOT/texmf
 
Then run
 
    mktexlsr
   
 
==Configure==
Proceed the same way as on a Unix platform. In this case, the procedure requires a kind of bootstrapping, so it is better to put Octave outside the main directory tree; like f.i.
 
    ./bootstrap
    mkdir compile; cd compile
    ../configure --prefix=${HOME}/usr
 
This configuration supposes ${HOME}/usr/bin exists and is in your $PATH.
 
==Build==
The procedure is a bit more tricky. Start the build as usual:
 
    make -j 2
 
It will fail after a looong time, while trying to launch ./run-octave. This is a well-known problem, partly caused by issues with the fork() call under Windows platforms. At this time, change run-octave to something simpler:
 
    #! /bin/sh
    octave_executable="${PREFIX}/usr/bin/octave"
    "$octave_executable" "$@"
 
Where ${PREFIX} matches the form previously used during the configure stage. In fact, we will use the new Octave, which is not yet operationnal. But never mind. Restart the process as follows:
 
    make install
 
This way:
# The Octave libs and binaries have been generated, they will be copied into their final destination directory.
# the doc has still to be built. With the modified "run-octave", the executable which will be called is the version just installed during the previous step. Now the doc generation will succeed, and so will its installation.
 
Enjoy!

Latest revision as of 06:17, 16 August 2019

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