No description
With some toolchains, building in C++ mode stumbles on many instances of: In file included from ../../src/gdb/../include/splay-tree.h:43:0, from ../../src/gdb/dcache.c:26: build-gnulib/import/inttypes.h:61:3: error: #error "This file assumes that 'int' has exactly 32 bits. Please report your platform and compiler to <bug-gnulib@gnu.org>." # error "This file assumes that 'int' has exactly 32 bits. Please report your platform and compiler to <bug-gnulib@gnu.org>." ^ make: *** [dcache.o] Error 1 That's: #if !(INT_MIN == INT32_MIN && INT_MAX == INT32_MAX) # error "This file assumes that 'int' has exactly 32 bits. Please report your platform and compiler to <bug-gnulib@gnu.org>." #endif I see it when cross building for --host=x86_64-w64-mingw32 using Fedora 20's g++ (gcc version 4.8.4 20141219 (Fedora MinGW 4.8.4-1.fc20)), Simon reports seeing this on several cross compilers too. The issue is that on some hosts that predate C++11, when using C++ one must define __STDC_CONSTANT_MACROS/__STDC_LIMIT_MACROS to make visible the definitions of INTMAX_C / INTMAX_MAX etc. This was a C99 requirement that later C++11 -- the first to define stdint.h -- removed, and then C11 removed it as well. https://www.gnu.org/software/gnulib/manual/html_node/stdint_002eh.html says that gnulib's stdint.h fixes this, but because we run gnulib's configure tests with a C compiler, gnulib determines that mingw's stdint.h is C99-compliant, and doesn't actually replace it. Actually, even though configuring gnulib with a C++ compiler does result in gnulib replacing stdint.h, the resulting replacement is broken for mingw, because it defines uintptr_t incorrectly. I sent a gnulib patch upstream to fix that, here: https://lists.gnu.org/archive/html/bug-gnulib/2015-11/msg00004.html but then even with that, gnulib still stumbles on other configured-with-C++-compiler problems. So for now, until gnulib + C++ is fixed upstream and then gdb's copy is updated, which may take a while, I think it's best to keep configuring gnulib in C, and define __STDC_LIMIT_MACROS/__STDC_CONSTANT_MACROS ourselves, just like C99 intended. gdb/ChangeLog: 2015-11-17 Pedro Alves <palves@redhat.com> * common/common-defs.h (__STDC_CONSTANT_MACROS) (__STDC_LIMIT_MACROS): Define before including stdint.h. |
||
---|---|---|
bfd | ||
binutils | ||
config | ||
cpu | ||
elfcpp | ||
etc | ||
gas | ||
gdb | ||
gold | ||
gprof | ||
include | ||
intl | ||
ld | ||
libdecnumber | ||
libiberty | ||
opcodes | ||
readline | ||
sim | ||
texinfo | ||
zlib | ||
.cvsignore | ||
.gitattributes | ||
.gitignore | ||
ChangeLog | ||
compile | ||
config-ml.in | ||
config.guess | ||
config.rpath | ||
config.sub | ||
configure | ||
configure.ac | ||
COPYING | ||
COPYING.LIB | ||
COPYING.LIBGLOSS | ||
COPYING.NEWLIB | ||
COPYING3 | ||
COPYING3.LIB | ||
depcomp | ||
djunpack.bat | ||
install-sh | ||
libtool.m4 | ||
ltgcc.m4 | ||
ltmain.sh | ||
ltoptions.m4 | ||
ltsugar.m4 | ||
ltversion.m4 | ||
lt~obsolete.m4 | ||
MAINTAINERS | ||
Makefile.def | ||
Makefile.in | ||
Makefile.tpl | ||
makefile.vms | ||
missing | ||
mkdep | ||
mkinstalldirs | ||
move-if-change | ||
README | ||
README-maintainer-mode | ||
setup.com | ||
src-release.sh | ||
symlink-tree | ||
ylwrap |
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.