ISSUE ON INSTALLING eckit-1.20.0.tar.gz

[Darivo-cmd]

Hi!
I'm trying to install the eckit (required packages by other program) version 1.20.0 but encouter the following problem.
I have ecbuild correctly installed (I think > darivo@Rivo:~/eckit-1.20.0/build$ which ecbuild give /opt/cdo-install/bin/ecbuild
But when I enter this /eckit-1.20.0/build$ ecbuild --prefix=$installdir ../ to install eckit, it requires root permission. So I try with sudo but unfortinately it says ecbuild not found.
:/eckit-1.20.0/build$ sudo ecbuild --prefix=$installdir ../
sudo: ecbuild: command not found
A help is most wellcome! Thanks inadvance.
For info, I downloaded tarball from here (github)

[Willem Deconinck]

Hello @Darivo-cmd,
You don't necessarily need to have an installed ecbuild as it works from source.
Try this:

git clone https://github.com/ecmwf/ecbuild
export ecbuild_ROOT=$PWD/ecbuild

and then use

${ecbuild_ROOT}/bin/ecbuild --prefix=$installdir ../

or simply

cmake -DCMAKE_INSTALL_PREFIX=$installdir ../

The latter will work as well because ecbuild_ROOT is exported in environment.

[Darivo-cmd]

Hi Willem,
That works well. Thanks a lot!