common/autoconf/flags.m4

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

*** 346,359 ****
        ;;
      slowdebug )
        # Add runtime stack smashing and undefined behavior checks
        CFLAGS_DEBUG_OPTIONS="-fstack-protector-all --param ssp-buffer-size=1"
        CXXFLAGS_DEBUG_OPTIONS="-fstack-protector-all --param ssp-buffer-size=1"
-       if test "x$HAS_CFLAG_DETECT_UNDEFINED_BEHAVIOR" = "xtrue"; then
-         CFLAGS_DEBUG_OPTIONS="$CFLAGS_DEBUG_OPTIONS  $CFLAG_DETECT_UNDEFINED_BEHAVIOR_FLAG"
-         CXXFLAGS_DEBUG_OPTIONS="$CXXFLAGS_DEBUG_OPTIONS $CFLAG_DETECT_UNDEFINED_BEHAVIsOR_FLAG"
-       fi
        ;;
      esac
    fi
    AC_SUBST(CFLAGS_DEBUG_OPTIONS)
    AC_SUBST(CXXFLAGS_DEBUG_OPTIONS)
--- 346,355 ----
*** 744,772 ****
    elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then
      LDFLAGS_JDK="$LDFLAGS_JDK -z defs -xildoff -ztext"
      LDFLAGS_CXX_JDK="$LDFLAGS_CXX_JDK -norunpath -xnolib"
    fi
  
-   if test "x$TOOLCHAIN_TYPE" = xgcc || test "x$TOOLCHAIN_TYPE" = xclang; then
-     # If undefined behaviour detection is enabled then we need to tell linker.
-     case $DEBUG_LEVEL in
-       release | fastdebug )
-         ;;
-       slowdebug )
-         AC_MSG_WARN([$HAS_CFLAG_DETECT_UNDEFINED_BEHAVIOR])
-         if test "x$HAS_CFLAG_DETECT_UNDEFINED_BEHAVIOR" = "xtrue"; then
-           # enable undefined behaviour checking
-           LDFLAGS_JDK="$LDFLAGS_JDK `$ECHO -n $CFLAG_DETECT_UNDEFINED_BEHAVIOR_FLAG | sed -e "s/[ ]*\([^ ]\+\)/ -Xlinker \1/g"`"
-           LDFLAGS_CXX_JDK="$LDFLAGS_CXX_JDK `$ECHO -n $CFLAG_DETECT_UNDEFINED_BEHAVIOR_FLAG | sed -e "s/[ ]*\([^ ]\+\)/ -Xlinker \1/g"`"
-         fi
-         ;;
-       * )
-         AC_MSG_ERROR([Unrecognized \$DEBUG_LEVEL: $DEBUG_LEVEL])
-         ;;
-     esac
-   fi
- 
    # Customize LDFLAGS for executables
  
    LDFLAGS_JDKEXE="${LDFLAGS_JDK}"
  
    if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
--- 740,749 ----