behavior. It has a performance cost, so if you are looking at
GDB's performance, you should disable it.
+`--enable-unit-tests[=yes|no]'
+ Enable (i.e., include) support for unit tests when compiling GDB
+ and GDBServer. Note that if this option is not passed, GDB will
+ have selftests if it is a development build, and will *not* have
+ selftests if it is a non-development build.
+
`configure' accepts other options, for compatibility with configuring
other GNU tools recursively.