build: -Wno-stringop-overflow during LTO phase

Type: make
Change-Id: I735fa411366c41981e255921eceb18ebbb4b5fe1
Signed-off-by: Damjan Marion <damarion@cisco.com>

diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 5327735..3966bc3 100644 (file)
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -125,6 +125,10 @@ if (CMAKE_BUILD_TYPE_UC STREQUAL "RELEASE")
   endif()
 endif()
 
+if(VPP_USE_LTO)
+  check_c_compiler_flag("-Wno-stringop-overflow"
+                       compiler_flag_no_stringop_overflow)
+endif()
 ##############################################################################
 # sanitizers
 ##############################################################################

diff --git a/src/cmake/library.cmake b/src/cmake/library.cmake
index c80d7f2..fbb2c68 100644 (file)
--- a/src/cmake/library.cmake
+++ b/src/cmake/library.cmake
@@ -51,6 +51,9 @@ macro(add_vpp_library lib)
      target_compile_options (${lib} PRIVATE "-ffunction-sections")
      target_compile_options (${lib} PRIVATE "-fdata-sections")
      target_link_libraries (${lib} "-Wl,--gc-sections")
+     if(compiler_flag_no_stringop_overflow)
+       target_link_libraries (${lib} "-Wno-stringop-overflow")
+     endif()
   endif()
 
   if(ARG_MULTIARCH_SOURCES)