diff options
| author |   Damjan Marion <damarion@cisco.com> | 2022-04-14 22:18:19 +0200 |
|---|---|---|
| committer |   Florin Coras <florin.coras@gmail.com> | 2022-04-15 17:52:43 +0000 |
| commit | 8cb5d36c7e7492d3cc314e6b78dea571bbcc4889 (patch) | |
| tree | 95ee00c56e4fa51829106056cf6642dca2b046c1 /src/CMakeLists.txt | |
| parent | 105cb1e4cfed2f7a92946fe7e9efc442e0183714 (diff) | |
build: c compiler version warnings
Type: make
Change-Id: I9455da47f03383df822436d1adc4c4b5e58c7cf9
Signed-off-by: Damjan Marion <damarion@cisco.com>
Diffstat (limited to 'src/CMakeLists.txt')
| -rw-r--r-- | src/CMakeLists.txt | 45 |
1 files changed, 34 insertions, 11 deletions
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt index a1c18ff0951..de0c24135d7 100644 --- a/src/CMakeLists.txt +++ b/src/CMakeLists.txt @@ -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) @@ -51,6 +41,39 @@ 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 ############################################################################## if(CMAKE_CROSSCOMPILING) |