build: c compiler version warnings

Type: make
Change-Id: I9455da47f03383df822436d1adc4c4b5e58c7cf9
Signed-off-by: Damjan Marion <damarion@cisco.com>
This commit is contained in:
Damjan Marion
2022-04-14 22:18:19 +02:00
committed by Florin Coras
parent 105cb1e4cf
commit 8cb5d36c7e
2 changed files with 37 additions and 14 deletions

View File

@ -85,17 +85,17 @@ ifeq ($(OS_VERSION_ID),20.04)
DEB_DEPENDS += python3-virtualenv
DEB_DEPENDS += libssl-dev
DEB_DEPENDS += libelf-dev # for libbpf (af_xdp)
DEB_DEPENDS += clang-11 clang-format-11
DEB_DEPENDS += clang clang-format-11
LIBFFI=libffi7
DEB_DEPENDS += enchant-2 # for docs
else ifeq ($(OS_VERSION_ID),20.10)
DEB_DEPENDS += clang-11 clang-format-11
DEB_DEPENDS += clang clang-format-11
LIBFFI=libffi8ubuntu1
else ifeq ($(OS_ID)-$(OS_VERSION_ID),debian-10)
DEB_DEPENDS += virtualenv
else ifeq ($(OS_ID)-$(OS_VERSION_ID),debian-11)
DEB_DEPENDS += virtualenv
DEB_DEPENDS += clang-11 clang-format-11
DEB_DEPENDS += clang clang-format-11
LIBFFI=libffi7
else
DEB_DEPENDS += clang-11 clang-format-11

View File

@ -13,17 +13,7 @@
cmake_minimum_required(VERSION 3.13)
set(CMAKE_C_COMPILER_NAMES
clang-14
clang-13
clang-12
clang-11
clang-10
clang-9
gcc-10
gcc-9
cc
)
set(CMAKE_C_COMPILER_NAMES clang gcc cc)
project(vpp C)
@ -50,6 +40,39 @@ execute_process(
string(REPLACE "-" ";" VPP_LIB_VERSION ${VPP_VERSION})
list(GET VPP_LIB_VERSION 0 VPP_LIB_VERSION)
##############################################################################
# compiler specifics
##############################################################################
set(MIN_SUPPORTED_CLANG_C_COMPILER_VERSION 9.0.0)
set(MIN_SUPPORTED_GNU_C_COMPILER_VERSION 9.0.0)
if(CMAKE_C_COMPILER_ID STREQUAL "Clang")
if (CMAKE_C_COMPILER_VERSION VERSION_LESS MIN_SUPPORTED_CLANG_C_COMPILER_VERSION)
set(COMPILER_TOO_OLD TRUE)
endif()
elseif(CMAKE_C_COMPILER_ID STREQUAL "GNU")
if (CMAKE_C_COMPILER_VERSION VERSION_LESS MIN_SUPPORTED_GNU_C_COMPILER_VERSION)
set(COMPILER_TOO_OLD TRUE)
endif()
else()
message(WARNING "WARNING: Unsupported C compiler `${CMAKE_C_COMPILER_ID}` is used")
set (PRINT_MIN_C_COMPILER_VER TRUE)
endif()
if (COMPILER_TOO_OLD)
message(WARNING "WARNING: C compiler version is too old and it's usage may result")
message(WARNING " in sub-optimal binaries or lack of support for specific CPU types.")
set (PRINT_MIN_C_COMPILER_VER TRUE)
endif()
if (PRINT_MIN_C_COMPILER_VER)
string (APPEND _t "Supported C compilers are ")
string (APPEND _t "Clang ${MIN_SUPPORTED_CLANG_C_COMPILER_VERSION} or higher ")
string (APPEND _t "and GNU ${MIN_SUPPORTED_GNU_C_COMPILER_VERSION} or higher.")
message(WARNING " ${_t}")
unset (_t)
endif()
##############################################################################
# cross compiling
##############################################################################