doc/invoke.texi says: Try to format error messages so that they fit on lines of about @var{n} characters. The default is 72 characters for @command{g++} and 0 for the rest of the front ends supported by [EMAIL PROTECTED]
However, cp/cxx-pretty-print.c seems to set the default to 0: pp_set_line_maximum_length (pp, 0); See this thread: http://gcc.gnu.org/ml/gcc-patches/2007-03/msg01948.html There is some disagreement as to whether this is a documentation bug or a code bug. -- Summary: -fmessage-length documentation and implementation disagree Product: gcc Version: 4.3.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: tromey at gcc dot gnu dot org http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32614