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Compiling GDB with current git Clang (future 13) runs into this: src/gdb/completer.c:287:18: error: variable 'found_quote' set but not used [-Werror,-Wunused-but-set-variable] int scan, end, found_quote, delimiter, pass_next, isbrk; ^ gdb_rl_find_completion_word came to life as a modified (stripped down) version of readline's internal _rl_find_completion_word function. When I added it, I don't remember whether I realized that 'found_quote' wasn't really necessary. Maybe I kept it thinking of keeping the source code in sync with readline? I don't recall anymore. Since the function is already stripped down compared to the original, stripping it down some more doesn't hurt. So fix the issue by removing the unnecessary code. gdb/ChangeLog: yyyy-mm-dd Pedro Alves <pedro@palves.net> * completer.c (RL_QF_SINGLE_QUOTE, RL_QF_DOUBLE_QUOTE) (RL_QF_BACKSLASH, RL_QF_OTHER_QUOTE): Delete. (gdb_rl_find_completion_word): Remove write-only 'found_quote' local.
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.