Re: [Zephyr-devel] CMake migration complete


Carles Cufi
 

Hi Erwin,

-----Original Message-----
From: zephyr-devel-bounces@lists.zephyrproject.org [mailto:zephyr-devel-
bounces@lists.zephyrproject.org] On Behalf Of Erwin Rol
Sent: 09 November 2017 10:56
To: Bøe, Sebastian <Sebastian.Boe@nordicsemi.no>; zephyr-
devel@lists.zephyrproject.org; zephyr-users@lists.zephyrproject.org
Subject: Re: [Zephyr-devel] CMake migration complete

Well that kind of sucks, cause the on Redhat 7.X the newest cmake is
3.6.x.

Will the needed cmake be part of the toolchain ?
No, but it's quite simple to install a recent version of CMake manually:

http://docs.zephyrproject.org/getting_started/installation_linux.html#installing-requirements-and-dependencies

$ mkdir $HOME/work_dir && cd $HOME/work_dir
$ wget https://cmake.org/files/v3.8/cmake-3.8.2-Linux-x86_64.sh
$ yes | sh cmake-3.8.2-Linux-x86_64.sh | cat
$ echo "export PATH=$PWD/cmake-3.8.2-Linux-x86_64/bin:\$PATH" >> $HOME/.zephyrrc
$ bash
$ cmake --version

Regards,

Carles



- Erwin


On Thu, 2017-11-09 at 08:57 +0000, Bøe, Sebastian wrote:
PS: Correction; install cmake 3.8.2 or later.
From: Bøe, Sebastian
Sent: Thursday, 9 November 2017 9:42:27 AM
To: zephyr-devel@lists.zephyrproject.org; zephyr-users@lists.zephyrpr
oject.org
Subject: CMake migration complete

Hi all,

Zephyr has finally migrated to CMake.

This migration is an important step in a larger effort to make Zephyr
easy to use for application developers working on different platforms
with different development environment needs.

Simplified, this change retains Kconfig as-is, and replaces all
Makefiles with CMakeLists.txt. The DSL-like Make language that KBuild
offers is replaced by a set of CMake extentions. These extentions have
either provided simple one-to-one translations of KBuild features or
introduced new concepts that replace KBuild concepts.

This is a breaking change for existing test infrastructure and build
scripts that are maintained out-of-tree. But for FW itself, no porting
should be necessary.

For users that just want to continue their work with minimal
disruption the following should suffice:

Install CMake 3.8.2 exactly

Port any out-of-tree Makefiles to CMake.

Learn the absolute minimum about the new command line interface:

# To do a clean build;

$ cd samples/hello_world
$ mkdir build && cd build
$ cmake -DBOARD=nrf52_pca10040 ..

# For incremental builds;

$ cd build
$ make

PR: https://github.com/zephyrproject-rtos/zephyr/pull/4692
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