Package: python-cffi Version: 1.4.2-2 Severity: important User: [email protected] Usertags: ftbfs-gcc-6 gcc-6-shift-negative-value
This package fails to build with GCC 6. GCC 6 has not been released yet, but it's expected that GCC 6 will become the default compiler for stretch. Note that only the first error is reported; there might be more. You can find a snapshot of GCC 6 in experimental. To build with GCC 6, you can set CC=gcc-6 CXX=g++-6 explicitly. You may be able to find out more about this issue at https://gcc.gnu.org/gcc-6/changes.html > sbuild (Debian sbuild) 0.67.0 (26 Dec 2015) on dl580gen9-02.hlinux ... > building 'verify209' extension > x86_64-linux-gnu-gcc -pthread -DNDEBUG -g -fwrapv -O2 -Wall > -Wstrict-prototypes -fno-strict-aliasing -g -O2 -fstack-protector-strong > -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -fPIC > -I/usr/include/python2.7 -c verify209.c -o ./verify209.o -Werror -Wall > -Wextra -Wconversion > ----------------------------- Captured stderr call > ----------------------------- > verify209.c: In function '_cffi_const_BB': > verify209.c:437:34: error: left shift of negative value > [-Werror=shift-negative-value] > *o = (unsigned long long)((BB) << 0); /* check that BB is an integer */ > ^~ > > cc1: all warnings being treated as errors > __________________________ test_global_const_int_size > __________________________ > > def test_global_const_int_size(): > # integer constants: ignore the declared type, always just use the > value > for value in [-2**63, -2**31, -2**15, > 2**15-1, 2**15, 2**31-1, 2**31, 2**32-1, 2**32, > 2**63-1, 2**63, 2**64-1]: > ffi = FFI() > if value == int(ffi.cast("long long", value)): > if value < 0: > vstr = '(-%dLL-1)' % (~value,) > else: > vstr = '%dLL' % value > elif value == int(ffi.cast("unsigned long long", value)): > vstr = '%dULL' % value > else: > raise AssertionError(value) > ffi.cdef("static const unsigned short AA;") > > lib = ffi.verify("#define AA %s\n" % vstr) > > testing/cffi1/test_verify1.py:678: > _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ > _ > testing/cffi1/test_verify1.py:41: in verify > **kwds) > cffi/recompiler.py:1356: in _verify > outputfilename = recompile(ffi, module_name, preamble, *args, **kwds) > cffi/recompiler.py:1334: in recompile > outputfilename = ffiplatform.compile('.', ext, compiler_verbose) > cffi/ffiplatform.py:29: in compile > outputfilename = _build(tmpdir, ext, compiler_verbose) > _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ > _ > > tmpdir = '.', ext = <distutils.extension.Extension instance at 0x7faeb0d68560> > compiler_verbose = 1 > > def _build(tmpdir, ext, compiler_verbose=0): > # XXX compact but horrible :-( > from distutils.core import Distribution > import distutils.errors, distutils.log > # > dist = Distribution({'ext_modules': [ext]}) > dist.parse_config_files() > options = dist.get_option_dict('build_ext') > options['force'] = ('ffiplatform', True) > options['build_lib'] = ('ffiplatform', tmpdir) > options['build_temp'] = ('ffiplatform', tmpdir) > # > try: > old_level = distutils.log.set_threshold(0) or 0 > try: > distutils.log.set_verbosity(compiler_verbose) > dist.run_command('build_ext') > finally: > distutils.log.set_threshold(old_level) > except (distutils.errors.CompileError, > distutils.errors.LinkError) as e: > > raise VerificationError('%s: %s' % (e.__class__.__name__, e)) > E VerificationError: CompileError: command 'x86_64-linux-gnu-gcc' > failed with exit status 1 > > cffi/ffiplatform.py:60: VerificationError > ----------------------------- Captured stdout call > ----------------------------- > running build_ext > building 'verify210' extension > x86_64-linux-gnu-gcc -pthread -DNDEBUG -g -fwrapv -O2 -Wall > -Wstrict-prototypes -fno-strict-aliasing -g -O2 -fstack-protector-strong > -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -fPIC > -I/usr/include/python2.7 -c verify210.c -o ./verify210.o -Werror -Wall > -Wextra -Wconversion > ----------------------------- Captured stderr call > ----------------------------- > verify210.c: In function '_cffi_const_AA': > verify210.c:426:34: error: left shift of negative value > [-Werror=shift-negative-value] > *o = (unsigned long long)((AA) << 0); /* check that AA is an integer */ > ^~ > > cc1: all warnings being treated as errors _______________________________________________ Python-modules-team mailing list [email protected] http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/python-modules-team
