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})
set(TMP_ARCHIVE_SUBMODULE ${PROJECT_PKG_ENTRY_POINT}/${NPKG_PROJECT_NAME}-sub)
set(CMD_ARCHIVE_SUBMODULE \'git archive --verbose --prefix=${NPKG_PROJECT_NAME}-${PROJECT_VERSION}/$$path/ --format tar HEAD --output ${TMP_ARCHIVE_SUBMODULE}-$$sha1.tar\' )
-if(OSRELEASE MATCHES "debian" AND NOT DEFINED $ENV{SDKTARGETSYSROOT})
+if(OSRELEASE MATCHES "debian" AND NOT DEFINED ENV{SDKTARGETSYSROOT} AND NOT DEFINED CMAKE_TOOLCHAIN_FILE)
# build deb spec file from template
set(PACKAGING_DEB_OUTPUT_DSC ${PROJECT_PKG_ENTRY_POINT}/${NPKG_PROJECT_NAME}.dsc)
set(PACKAGING_DEB_OUTPUT_INSTALL ${PROJECT_PKG_ENTRY_POINT}/debian.${NPKG_PROJECT_NAME}.install)
set(PACKAGING_DEB_OUTPUT_COMPAT ${PROJECT_PKG_ENTRY_POINT}/debian.compat)
set(PACKAGING_DEB_OUTPUT_CONTROL ${PROJECT_PKG_ENTRY_POINT}/debian.control)
set(PACKAGING_DEB_OUTPUT_RULES ${PROJECT_PKG_ENTRY_POINT}/debian.rules)
-endif(OSRELEASE MATCHES "debian" AND NOT DEFINED $ENV{SDKTARGETSYSROOT})
\ No newline at end of file
+endif()