Difference between revisions of "Build from source"

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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.
Building Octave can be as simple as downloading the source and running the following three commands in your Linux shell:
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.
After running configure simply run
Note that the compilation of Octave can take some time.
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.
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.
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
=System Specific Instructions=
*[[Octave for Mac|Mac OS X]]
=Distributed building=
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
Install distcc on all machines taking part in the compilation. List them in <nowiki>~/.distcc/hosts</nowiki>:
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 05:37, 2 June 2015

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