When building gdb with -flto -O2, I run into: ... opcodes/mep-desc.h:250:14: warning: type 'cgen_operand_type' violates the \ C++ One Definition Rule [-Wodr] typedef enum cgen_operand_type { ^ opcodes/or1k-desc.h:624:14: note: an enum with different value name is \ defined in another translation unit typedef enum cgen_operand_type { ^ opcodes/mep-desc.h:212:14: warning: type 'cgen_hw_type' violates the C++ One \ Definition Rule [-Wodr] typedef enum cgen_hw_type { ^ opcodes/or1k-desc.h:433:14: note: an enum with different value name is \ defined in another translation unit typedef enum cgen_hw_type { ^ ... Fix this by making the conflicting type names unique, adding a target-specific prefix using a define before the include: ... #define cgen_operand_type <target-name>_cgen_operand_type #define cgen_hw_type <target-name>_cgen_hw_type #include "opcodes/<target-name>-desc.h" ... and move those defines into a new file cgen-remap.h, similar to how that's done for yacc in yy-remap.h. Likewise for targets frv and lm32, the two other targets that include opcodes/<target-name>-desc.h. Likewise for more cgen symbols that I got the same warning for when using -flto-partition=one. A PR has been filed to take care of this in the opcodes dir instead (PR30758). Tested on x86_64-linux. Approved-By: Tom Tromey <tom@tromey.com> PR build/30757 Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=30757
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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.
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