common/autoconf/toolchain.m4

rev 1233 : 8065648: Remove the flag -fsanitize=undefined for GCC 4.9 and later

*** 710,725 ****
      CFLAG_OPTIMIZE_DEBUG_FLAG="-Og"
      FLAGS_COMPILER_CHECK_ARGUMENTS([$CFLAG_OPTIMIZE_DEBUG_FLAG],
        [HAS_CFLAG_OPTIMIZE_DEBUG=true],
        [HAS_CFLAG_OPTIMIZE_DEBUG=false])
  
-     # "-fsanitize=undefined" supported for GCC 4.9 and later
-     CFLAG_DETECT_UNDEFINED_BEHAVIOR_FLAG="-fsanitize=undefined -fsanitize-recover"
-     FLAGS_COMPILER_CHECK_ARGUMENTS([$CFLAG_DETECT_UNDEFINED_BEHAVIOR_FLAG],
-       [HAS_CFLAG_DETECT_UNDEFINED_BEHAVIOR=true],
-       [HAS_CFLAG_DETECT_UNDEFINED_BEHAVIOR=false])
- 
      # "-z relro" supported in GNU binutils 2.17 and later
      LINKER_RELRO_FLAG="-Xlinker -z -Xlinker relro"
      FLAGS_LINKER_CHECK_ARGUMENTS([$LINKER_RELRO_FLAG],
        [HAS_LINKER_RELRO=true],
        [HAS_LINKER_RELRO=false])
--- 710,719 ----