cmake_minimum_required(VERSION 3.13)
-set(CMAKE_C_COMPILER_NAMES
- 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)
string(REPLACE "-" ";" VPP_LIB_VERSION ${VPP_VERSION})
list(GET VPP_LIB_VERSION 0 VPP_LIB_VERSION)
+##############################################################################
+# compiler specifics
+##############################################################################
+
+set(MIN_SUPPORTED_CLANG_C_COMPILER_VERSION 9.0.0)
+set(MIN_SUPPORTED_GNU_C_COMPILER_VERSION 9.0.0)
+
+if(CMAKE_C_COMPILER_ID STREQUAL "Clang")
+ if (CMAKE_C_COMPILER_VERSION VERSION_LESS MIN_SUPPORTED_CLANG_C_COMPILER_VERSION)
+ set(COMPILER_TOO_OLD TRUE)
+ endif()
+elseif(CMAKE_C_COMPILER_ID STREQUAL "GNU")
+ if (CMAKE_C_COMPILER_VERSION VERSION_LESS MIN_SUPPORTED_GNU_C_COMPILER_VERSION)
+ set(COMPILER_TOO_OLD TRUE)
+ endif()
+ set(GCC_STRING_OVERFLOW_WARNING_DISABLE_VERSION 10.0.0)
+ if (CMAKE_C_COMPILER_VERSION VERSION_GREATER_EQUAL GCC_STRING_OVERFLOW_WARNING_DISABLE_VERSION)
+ add_compile_options(-Wno-stringop-overflow)
+ endif()
+else()
+ message(WARNING "WARNING: Unsupported C compiler `${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 " ${_t}")
+ unset (_t)
+endif()
+
##############################################################################
# cross compiling
##############################################################################
elseif (${CMAKE_BUILD_TYPE_LC} MATCHES "gcov")
add_compile_options(-O0 -fprofile-arcs -ftest-coverage)
add_compile_definitions(CLIB_DEBUG CLIB_GCOV)
+ link_libraries(gcov)
endif()
set(BUILD_TYPES release debug coverity gcov)
if (VPP_ENABLE_SANITIZE_ADDR)
add_compile_options(-fsanitize=address)
- add_compile_definitions(CLIB_SANITIZE_ADDR)
add_link_options(-fsanitize=address)
endif (VPP_ENABLE_SANITIZE_ADDR)
pr("Prefix path" ${CMAKE_PREFIX_PATH})
pr("Install prefix" ${CMAKE_INSTALL_PREFIX})
pr("Library dir" ${VPP_LIBRARY_DIR})
+pr("Multiarch variants" ${MARCH_VARIANTS_NAMES})