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Compiling from source is probably the most effective way of installing Octave on your system. To do this you will require compilers for the following languages:
#REDIRECT [[Building]]
 
* C
* C++ (ISO)
* Fortran
 
The best supported compilers for the job are the [http://gcc.gnu.org/ GNU Compiler Collection]. You will require at least GCC 4.3 or later, although GCC 4.4 or later is recommended.
 
To compile Octave, you will also need a recent version of GNU Make. You must have GNU Make to compile octave. Octave's Makefiles use features of GNU Make that are not present in other versions of make. GNU Make is very portable and easy to install.
 
=Introduction=
 
Building Octave can be as simple as downloading the source and running the following three commands in your Linux shell:
 
./configure
make
make install
 
[http://www.gnu.org/software/octave/doc/interpreter/Installation.html#Installation More detailed instructions]
for building from source are included in the Octave manual.
 
=Download=
 
Released source tarballs are available at http://www.octave.org/download.html. You will normally want to use one of those.
 
The download page also contains instructions to download the development sources. If you are using the development sources, be sure to type the following command before configuring:
 
./autogen.sh
 
This builds the configure scripts that Octave uses. This requires a number of tools which are not needed if you download an octave release, such as recent versions of autoconf/automake, and tools such as bison, flex, gperf, perl, and maybe others.
 
=Configure=
 
Before compiling you must first configure the build system by running the configure script.
 
./configure
 
The configure script will display information about missing packages or any other issues that arise during the configuration run.
 
Octave has many configure options. For a complete list, see
 
./configure --help
 
If you are building a personal version, you will want to install it into your home directory, or perhaps a subdirectory. Add the following to your configure line:
 
--prefix=$HOME/octave
 
Be sure the $HOME/octave/bin is on your path, or symlink the binaries therein to $HOME/bin.
 
==Troubleshooting==
 
1. If you just type ./configure, you may get this error:
 
configure: WARNING: in order to build octave, you must have a compatible
configure: WARNING: Fortran compiler or f2c installed and in your path.
configure: error: See the file INSTALL for more information.
 
This means that you don't have a fortran compiler on your system. You can either install a fortran compiler or re-install gcc with its optional build-in fortran compiler g77. To do this you must download the g77 components of gcc before you build gcc. Alternatively there are various f2c programs you could install which convert fortran to C.
 
2. If you get this warning:
 
configure: WARNING: "FTGL headers not found. Native renderer will not have on-screen text"
configure: WARNING:
configure: WARNING: I didn't find the necessary libraries to compile native
configure: WARNING: graphics. It isn't necessary to have native graphics
configure: WARNING: but you will have to use gnuplot or you won't be able
configure: WARNING: to use any of Octave's plotting commands
 
It may help to call configure with CPPFLAGS=-I/usr/include/freetype2, please see [http://www-old.cae.wisc.edu/pipermail/help-octave/2008-August/010610.html Problems with FTGL building octave-3.1.51],[http://www-old.cae.wisc.edu/pipermail/octave-maintainers/2008-September/008620.html Building ftgl backend with current tip]. Note that from [http://hg.savannah.gnu.org/hgweb/octave/rev/37afdd1d1bf8 changeset 8269] onward, this workaround should no longer be needed, please see [http://www-old.cae.wisc.edu/pipermail/octave-maintainers/2008-October/009154.html No FTGL, says configure script?]
 
=Build=
 
After running configure simply run
 
make
 
Note that the compilation of Octave can take some time.
 
==Troubleshooting==
 
Another possible error occurs at the 'make' stage:
 
/usr/include/c++/3.3.1/bits/basic_string.h:228: undefined reference to
    `std::basic_string<char, std::char_traits<char>, std::allocator<char> >::_S_empty_rep_storage'
collect2: ld returned 1 exit status
make[2]: *** [octave] Error 1
 
This has something to do with the gcc configuration. Try compiling the following program using g++:
 
#include <string>
#include <iostream>
using namespace std;
int main (void)
{
  basic_string <char>a = "thing one";
  string b = "thing two";
  cout << a.c_str() << endl;
  return (a == b);
}
 
If it fails, then your compiler needs to be set-up differently (how?). On my machine I can compile that test program but still get the error making Octave -- how do we solve this? It has something to do with the shared C++ library versions, check for /usr/lib/libstdc++.so.6 and make sure the right version of that library is being used by gcc -- especially if you had to reinstall gcc to build the fortran support. If it still doesn't work, consider installing from the RPMs instead of compiling from source.
 
=Test=
 
To run all tests, change to the octave directory and type
 
make check
 
This requires dejagnu.
 
To run a specific set of tests, change to the directory test/octave.test/<part> and type
 
runtest <part>.exp
 
To run your own tests use the [[RunInPlace]] shell script.
 
=Install=
 
Finally, to install Octave on your system run
 
make install
 
Alternatively, If you have checkinstall on your system issue
 
checkinstall -D
 
This will create a deb from the sources and register the installation with dpkg.
 
checkinstall -R
 
will create RPM package which you can install using your package manager in RPM based
distributions.
 
=System Specific Instructions=
 
*[[PaulKienzleIrixConf|SGI/IRIX]]
*[[Octave for Mac|Mac OS X]]
*[[Octave_for_GNU_Linux:_Binary_Octave_packages_for_GNU_Linux#Debian_Development_Sources|Debian]]
 
=Distributed building=
 
==Requirements==
 
The following seems to be out of date for my Ubuntu setup.  My suggestion would be to look
at the latest info for distcc and follow the instructions from there. Make sure the different
machines have the same software.  DAS
 
 
distcc
ccache
 
Install distcc on all machines taking part in the compilation. List them in <nowiki>~/.distcc/hosts</nowiki>:
 
localhost
pc1.mynet.org
pc2.mynet.org
 
The first machines listed are given higher priority -- place 'localhost' as you see fit.
 
Set the environment variables CCACHE_PREFIX, CXX and CC:
 
export CCACHE_PREFIX="distcc"
export CXX="ccache g++"
export CC="ccache gcc"
./configure <options>
 
Compile using the <nowiki>-j<simultaneous-jobs></nowiki> flag, two jobs per CPU available, i.e. for 5 machines
 
make -j10

Latest revision as of 12:37, 2 June 2015

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