Parallella Community

Hi suleyman,

This error means that you don't have libmpfr installed on your system. Depending on the distribution you are running, you will either need to install libmpfr4 (Debian/Ubuntu), mpfr (Fedora) or the equivalent package. (Searching mpfr will give you the right name)

Hi Simon,

I already have the latest version of libmpfr4 (I use ubuntu but I am not a linux expert).

A couple of things that I came accross was; when I run eclipse with sudo and try to build, the eclipse says 'e-gcc: not found' . Meanwhile without sudo it recognizes e-gcc. So I guess sudo uses a different 'PATH', which makes me think, is it possible that libmpfr4 is installed on the path of su and when I run eclipse as a normal user it doesn't work? This is a bit confusing.

Thanks,

Is there a particular reason why you run eclipse w/ sudo?

No special reason. I was just testing.

With sudo, -E allows environment variables to be preserved and make it through to the executing command, though some don't (I assume security). However we can still do "sudo VAR=somevalue mycommand" and mycommand will know those variables. Running a combination of -E and VAR=somevalue enables us to preserve the environment variables that do pass through and reset those that don't to the values we want.

(I have also realised that my previous post is actually highly misleading and should read sudo -E PATH=$PATH LD_LIBRARY_PATH=$LD_LIBRARY_PATH <command> <args...> as to not suggest that -E is related to the environment variable setting. It isn't, I just unintentionally put it twice in what just happens to be a misleading place)

I followed the steps in SDK Wiki and installed the sdk. Previously I have downloaded from the ftp site.

In the SDK I got from git, there is no eclipse. Therefore I tried to use the one that I have downloaded from ftp site. I created a multi-core Hello World project and tried to build. This time I got some other problems then I merged the one I downloaded from the ftp site with the one that I got from git. Finally I got a

fatal error: e_coreid.h: No such file or directory.

e_coreid.h is added by default to the common.c in the commonlib project. I found this header file in the esdk/tools/e-gnu.armv7l/epiphany-elf/sys-include directory of the sdk which i downloaded from ftp. In the new installation it doesn't exist. So I guess I have different version for the eclipse plugin and the libraries.

This Git repo is actually intended for building the GNU toolchain, which is a part of the full eSDK. The epiphany specific headers and libraries are created by the repo from Adapteva's Git page. (Sorry, the integration of the two sites is only half baked).

What you can do is copy the newly created e-gnu directory over the old directory in the eSDK installation that does not work well for you.