Currently there are 4 different debug options:
--enable-dbgutil (the recommended one)
--enable-debug
--enable-selective-debuginfo
--enable-symbols (for advanced users only)

In this table the properties of each option is shown:
----------------------------------------
options\properties | O | S | D | T | U |
----------------------------------------
production-code    | x | - | - | - | - |
----------------------------------------
--enable-symbols   | x | x | - | - | - |
----------------------------------------
--enable-debug     | - | x | x | x | - |
----------------------------------------
--enable-dbgutil   | - | x | x | x | x |
----------------------------------------

where
O: optimization
S: debug symbols
D: debug STL
T: trace facility
U: additional debug utility (object counting)

Note:
--enable-selective-debuginfo has the same properties as --enable-debug

Change-Id: Ib8a28c6162f47526d6bb33f81f53835cd11894b2