Re: octave on development level

[Werner Koenig]

On 29.09.2013 08:53, c. wrote:
> On 29 Sep 2013, at 00:38, Werner Koenig<address@hidden>  wrote:
>
> > Hello list,
> >
> > I want to install a parallel version of octave on development level
> what do you mean exactly by "a parallel version"?
with parallel I mean, I have an octave version 3.6.3 on my system and I 
won't to overwrite it.
I want to have a development version of octave in /opt/octave
> if you have, then for some reason it cannot be found at compile time.
> What does the flex-related section in config.log say?
the config.log on my system is yet complete empty.
To test the flex installation, I write a little calc-program, which
can add and sub, I translate it with flex calc.l   -> gcc -o calc 
lex.yy.c -lfl
and the resulting prog calc works correctly. Therefor I think flex is 
installed
correct and the path variable is also set correct, so why doesn't find 
my system
the flex, when I compiled octave.
>   
> > What can I do, to get
> > an octave program at development level.
> If you want to work "at development level" you should be prepared to identify
> and fix such build issues, just dig into the code and try to see if you can find
> the source of the error.
Ok, I want do it, but a little help from the list is welcome.
On my system there is a file oct-tex-lexer.in.ll and a file 
oct-tex-lexer.ll (I think generated)
but no file oct-tex-lexer.cc (no wonder the flex isn't found at compile 
time)
Therefor for me there are two questions to answer
    - why doesn't find my system flex at compile time ( see above)
    - why is it essential to find flex, it is only a warning before the 
compile breaks,
      therfor I think flex isn't essential to compile octave (at 
development level)

So long Werner