X-Git-Url: https://gerrit.automotivelinux.org/gerrit/gitweb?a=blobdiff_plain;f=cmake%2Fcmake.d%2F01-variables.cmake;h=3891f539353ff52e5ba198daaaac61fdaab4431c;hb=ec101c751a6359483a00c0c3923d502845f45126;hp=1bba5ce8cde626b3de4d22a36238972aa5580c73;hpb=a3767d2fd184a9d317a867e1bede5167d7865091;p=staging%2Fxdg-launcher.git

diff --git a/cmake/cmake.d/01-variables.cmake b/cmake/cmake.d/01-variables.cmake
index 1bba5ce..3891f53 100644
--- a/cmake/cmake.d/01-variables.cmake
+++ b/cmake/cmake.d/01-variables.cmake
@@ -71,6 +71,21 @@ else()
 	set(OSRELEASE "NOT DEBIAN OS")
 endif()
 
+if(DEFINED ENV{SDKTARGETSYSROOT})
+	file(STRINGS $ENV{SDKTARGETSYSROOT}/usr/include/linux/version.h LINUX_VERSION_CODE_LINE REGEX "LINUX_VERSION_CODE")
+elseif(DEFINED ENV{PKG_CONFIG_SYSROOT_DIR})
+	file(STRINGS $ENV{PKG_CONFIG_SYSROOT_DIR}/usr/include/linux/version.h LINUX_VERSION_CODE_LINE REGEX "LINUX_VERSION_CODE")
+else()
+	file(STRINGS /usr/include/linux/version.h LINUX_VERSION_CODE_LINE REGEX "LINUX_VERSION_CODE")
+endif()
+
+string(REGEX MATCH "[0-9]+" LINUX_VERSION_CODE ${LINUX_VERSION_CODE_LINE})
+math(EXPR a "${LINUX_VERSION_CODE} >> 16")
+math(EXPR b "(${LINUX_VERSION_CODE} >> 8) & 255")
+math(EXPR c "(${LINUX_VERSION_CODE} & 255)")
+
+set(KERNEL_VERSION "${a}.${b}.${c}")
+
 # Include project configuration
 # ------------------------------
 project(${PROJECT_NAME} VERSION ${PROJECT_VERSION} LANGUAGES ${PROJECT_LANGUAGES})