opts.c has
/* What to print when a switch has no documentation. */
#ifdef ENABLE_CHECKING
static const char undocumented_msg[] = N_("This switch lacks documentation");
#else
static const char undocumented_msg[] = "";
#endif
When gcc is configured with --enable-checking=assert, "gcc --help=undocumented"
won't display
-E This switch lacks documentation
and the will fail like:
FAIL: compiler driver --help=undocumented option(s): This switch lacks
documentation
--
Summary: gcc.misc-tests/help.exp doesn't work when configured
with --enable-checking=assert
Product: gcc
Version: 4.5.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: testsuite
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: hjl dot tools at gmail dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39710
