From 2de0f6ce0d934bad9a80908bbc4a93a837f20eeb Mon Sep 17 00:00:00 2001
From: Romain Forlot <romain.forlot@iot.bzh>
Date: Wed, 24 May 2017 17:59:53 +0200
Subject: [PATCH] Added possibility to check linux kernel version

Change-Id: I212e1a5a2dc16c6cc2eb78523dbf9496d9da234a
Signed-off-by: Romain Forlot <romain.forlot@iot.bzh>
---
 cmake/common.cmake        | 10 +++++++++-
 cmake/config.cmake.sample |  6 +++++-
 2 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/cmake/common.cmake b/cmake/common.cmake
index 4c85498..1d43a73 100644
--- a/cmake/common.cmake
+++ b/cmake/common.cmake
@@ -52,7 +52,7 @@ macro(PROJECT_TARGET_ADD TARGET_NAME)
 	set(TARGET_NAME ${TARGET_NAME})
 endmacro(PROJECT_TARGET_ADD)
 
-# Check GCC minimal version version
+# Check GCC minimal version
 if (gcc_minimal_version)
 	message (STATUS "${Blue}-- Check gcc_minimal_version (found gcc version ${CMAKE_C_COMPILER_VERSION})  (found g++ version ${CMAKE_CXX_COMPILER_VERSION})${ColourReset}")
 if (CMAKE_CXX_COMPILER_VERSION VERSION_LESS ${gcc_minimal_version} OR CMAKE_C_COMPILER_VERSION VERSION_LESS ${gcc_minimal_version})
@@ -60,6 +60,14 @@ if (CMAKE_CXX_COMPILER_VERSION VERSION_LESS ${gcc_minimal_version} OR CMAKE_C_CO
 endif()
 endif(gcc_minimal_version)
 
+# Check Kernel minimal version
+if (kernel_minimal_version)
+	message (STATUS "${Blue}-- Check kernel_minimal_version (found kernel version ${CMAKE_SYSTEM_VERSION})${ColourReset}")
+	if (CMAKE_SYSTEM_VERSION VERSION_LESS ${kernel_minimal_version})
+	message(FATAL_ERROR "${Red}**** FATAL: Require at least ${kernel_minimal_version} please use a recent kernel.")
+endif()
+endif(kernel_minimal_version)
+
 macro(defstr name value)
 	add_definitions(-D${name}=${value})
 endmacro(defstr)
diff --git a/cmake/config.cmake.sample b/cmake/config.cmake.sample
index 66be37c..27d9f17 100644
--- a/cmake/config.cmake.sample
+++ b/cmake/config.cmake.sample
@@ -44,9 +44,13 @@ set(PROJECT_APP_TEMPLATES_DIR "conf.d")
 # ----------------------------------
 set(CMAKE_BUILD_TYPE "DEBUG")
 
+# Kernel selection if needed. Impose a minimal version.
+# -----------------------------------------------
+set (kernel_minimal_version 4.8)
+
 # Compiler selection if needed. Impose a minimal version.
 # -----------------------------------------------
-set (gcc_minimal_version 4.9) 
+set (gcc_minimal_version 4.9)
 
 # PKG_CONFIG required packages
 # -----------------------------
-- 
2.16.6