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-rw-r--r--src/CMakeLists.txt13
1 files changed, 12 insertions, 1 deletions
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 0d971fd8ebc..6fc243ca4d2 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -11,13 +11,14 @@
# See the License for the specific language governing permissions and
# limitations under the License.
-cmake_minimum_required(VERSION 3.5 FATAL_ERROR)
+cmake_minimum_required(VERSION 3.10)
set(CMAKE_C_COMPILER_NAMES clang-11 clang-10 clang-9 gcc-10 gcc-9 cc)
project(vpp C)
include(CheckCCompilerFlag)
+include(CheckIPOSupported)
include(cmake/misc.cmake)
include(cmake/cpu.cmake)
include(cmake/ccache.cmake)
@@ -106,6 +107,16 @@ set_property(CACHE CMAKE_BUILD_TYPE PROPERTY
HELPSTRING "Build type - valid options are: ${BUILD_TYPES}")
##############################################################################
+# link time optimizations
+##############################################################################
+if (CMAKE_BUILD_TYPE_UC STREQUAL "RELEASE")
+ check_ipo_supported(RESULT _result)
+ if (_result)
+ option(VPP_USE_LTO "Link time optimization of release binaries" ON)
+ endif()
+endif()
+
+##############################################################################
# sanitizers
##############################################################################