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gcc 4.8.2 compile failure #223
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If it doesn't show up on other compilers, considering it a compiler bug. |
I have this problem compiling with gcc (GCC) 4.8.2 20140120 (Red Hat 4.8.2-16) from CentOS7 with libtorrent branch IPV6 |
same issue on gcc 4.8.2 with latest rtorrent. Causes an indefinite loop. |
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Upstream considers the build error as compiler bug: rakshasa/rtorrent#223 Building with gcc 4.9 works, tested with this defconfig: BR2_TOOLCHAIN_BUILDROOT_WCHAR=y BR2_GCC_VERSION_4_9_X=y BR2_TOOLCHAIN_BUILDROOT_CXX=y BR2_PACKAGE_RTORRENT=y Fixes http://autobuild.buildroot.net/results/990/990c9d62f3d275bd4e2ffad41bdb6d68c483cbb1/ Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
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I have no idea if this is a gcc bug or an rtorrent bug.
/usr/include/c++/4.8.2/functional:1391:40: required by substitution of ‘template<class _CVArg, class ... _Args, long unsigned int ..._Indexes> decltype (__arg((declval<_Args>)()...)) std::_Mu<_Arg, true, false>::__call(_CVArg&, std::tuple<_Args2 ...>&, const std::_Index_tuple<_Indexes ...>&) const volatile [with _CVArg = _CVArg; _Args = {_Args ...}; long unsigned int ..._Indexes = {_Indexes ...}; _Arg = std::_Bind<std::_Mem_fn<const torrent::HashString& (torrent::DownloadInfo::)()const>(std::_Bind<std::_Mem_fn<const torrent::DownloadInfo (core::Download::)()const>(std::_Placeholder<1>)>)>] [with _CVArg = std::_Bind<std::_Mem_fn<const torrent::HashString& (torrent::DownloadInfo::)()const>(std::_Bind<std::_Mem_fn<const torrent::DownloadInfo* (core::Download::*)()const>(std::_Placeholder<1>)>)>; Args = {core::Download&&, const torrent::Object&}; long unsigned int ..._Indexes = {0ul, 1ul}]’
/usr/include/c++/4.8.2/functional:1143:50: template instantiation depth exceeds maximum of 900 (use -ftemplate-depth= to increase the maximum) substituting ‘template typename std::add_rvalue_reference< >::type std::declval() [with Tp = core::Download&&]’
g++: internal compiler error: Segmentation fault (program cc1plus)
Please submit a full bug report,
with preprocessed source if appropriate.
See http://bugzilla.redhat.com/bugzilla for instructions.
make[3]: *** [command_download.o] Error 4
make[3]: Leaving directory
/root/rtorrent/src' make[2]: *** [all-recursive] Error 1 make[2]: Leaving directory
/root/rtorrent/src'make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/root/rtorrent'
make: *** [all] Error 2
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