nrnivmodl compiling in Linux

[dzocchi]

I'm using ubuntu 2.6.38 and installed Neuron from the 32 bit deb file. When trying to compile mod files from another model, I get the following error:

/usr/bin/ld: cannot find -lncurses
collect2: ld returned 1 exit status
make: *** [libnrnmech.la] Error 1

I have been searching the forums but can't really find anything that helps much. Does anyone know what the problem could be?

Thanks!

[ted]

Use your distribution's package manager to discover and install the package(s) that it needs for development or compilation of programs that use ncurses.

A comment: despite its general excellence in most other areas, Ubuntu has been the principal source of questions like this. For some reason or other, it doesn't offer users a simple option like "install everything I need to develop and compile programs written in C or C++."

[tom_morse]

In ubuntu it is convenient to use synaptic as a package manager. If you don't have it you can add it with a command like

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sudo apt-get install synaptic

When I used synaptic to discover what was missing (I typed ncurses in the synaptic search box when i received the ncurses missing message) I cured the problem by installing libncurses5-dev (in synaptic you can mark it for install and then apply).

[sanjaybioe]

Dear Tom, what if it is opensuse 13.1? I too get the same error on lncurses.

[ted]

Use your distribution's package manager to discover and install the package(s) that it needs for development or compilation of programs that use ncurses.

[oren]

Hi usually when I get this problem in a new computer (ubuntu) I do the following:

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sudo apt-get install libncurses-dev

[luadam4c]

I needed this as well (Ubuntu 18.04 LTS):

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sudo apt-get install gcc

For some reason synaptic didn't pick this up.

[rgerkin]

If anyone gets here running NEURON with a miniconda installation, this is why it is happening and how to solve it:

Your default gcc may be on the miniconda path (/path/to/miniconda/bin), and it will look in your miniconda path for libraries, too (/path/to/miniconda/lib). apt-get won't install the ncurses libraries there, and miniconda's gcc won't look to where it does install. But you can do:

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conda install -c anaconda ncurses

And then run nrnivmodl as:

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nrnivmodl -loadflags "-L/path/to/miniconda/lib"

and then nrnivmodl will find the ncurses libraries and your mod files should compile.

[ted]

Thanks, rgerkin. Installation and configuration tips are always welcome.