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4a5700b62f
parse_args uses getopt_long_only so it can handle long options both with double and single dash. But this means that some single dash options like -gdwarf-1 don't generate an error (unlike --gdwarf-1). This is especially confusing since there is also --gdwarf2, but no --gdwarf4 (it is --gdwarf-4). When giving -gdwarf4 the option is silently interpreted as -g (which set dwarf_version to 2). This causes some confusion for people who don't expect this and suddenly get DWARF2 instead of DWARF4 as they might expect. So make it so that the -gdwarf<unknown> creates an error, just like --gdwarf<unknown> would.
README for GNU development tools This directory contains various GNU compilers, assemblers, linkers, debuggers, etc., plus their support routines, definitions, and documentation. If you are receiving this as part of a GDB release, see the file gdb/README. If with a binutils release, see binutils/README; if with a libg++ release, see libg++/README, etc. That'll give you info about this package -- supported targets, how to use it, how to report bugs, etc. It is now possible to automatically configure and build a variety of tools with one command. To build all of the tools contained herein, run the ``configure'' script here, e.g.: ./configure make To install them (by default in /usr/local/bin, /usr/local/lib, etc), then do: make install (If the configure script can't determine your type of computer, give it the name as an argument, for instance ``./configure sun4''. You can use the script ``config.sub'' to test whether a name is recognized; if it is, config.sub translates it to a triplet specifying CPU, vendor, and OS.) If you have more than one compiler on your system, it is often best to explicitly set CC in the environment before running configure, and to also set CC when running make. For example (assuming sh/bash/ksh): CC=gcc ./configure make A similar example using csh: setenv CC gcc ./configure make Much of the code and documentation enclosed is copyright by the Free Software Foundation, Inc. See the file COPYING or COPYING.LIB in the various directories, for a description of the GNU General Public License terms under which you can copy the files. REPORTING BUGS: Again, see gdb/README, binutils/README, etc., for info on where and how to report problems.