我试图将一些使用boost的现有代码移植到native-client。
我按照这里的说明编译了boost：https://code.google.com/p/naclports/wiki/InstallingSDL（使用boost而不是sdl），并尝试在其中一个示例中注入一些boost代码。
通过编写examples / api / socket / socket.cc，我成功地使用了boost :: shared_ptr，包括标题并添加了一个简单的测试方法：
#include <boost/shared_ptr.hpp>
测试方法：
void ExampleInstance::test_shared_ptr() {
boost::shared_ptr<std::string> test_ptr(new std::string("hi"));
PostMessage(test_ptr->c_str());
}
从构造函数中调用此方法会导致＆＃34; hi＆＃34;加载页面时出现在控制台上，您可以通过运行＆＃34; make serve＆＃34;。
虽然我印象深刻，但是我的应用程序使用了boost :: thread和boost :: asio，我遇到了麻烦。在pepper_34中，如果我添加：
#include <boost/threads.hpp>
我只是通过包含该文件来获取这些编译错误：
~/nacl_sdk/pepper_34/examples/api/socket$ make
CHROME_PATH is undefined, and google-chrome not found in PATH, nor /usr/bin/google-chrome.
CXX newlib/Release/socket_x86_32.o
In file included from /home/jholland/nacl_sdk/pepper_34/toolchain/linux_x86_newlib/i686-nacl/usr/include/boost/thread/thread_only.hpp:17,
from /home/jholland/nacl_sdk/pepper_34/toolchain/linux_x86_newlib/i686-nacl/usr/include/boost/thread/thread.hpp:12,
from /home/jholland/nacl_sdk/pepper_34/toolchain/linux_x86_newlib/i686-nacl/usr/include/boost/thread.hpp:13,
from socket.cc:25:
/home/jholland/nacl_sdk/pepper_34/toolchain/linux_x86_newlib/i686-nacl/usr/include/boost/thread/pthread/thread_data.hpp: In member function 'size_t boost::thread_attributes::get_stack_size() const':
/home/jholland/nacl_sdk/pepper_34/toolchain/linux_x86_newlib/i686-nacl/usr/include/boost/thread/pthread/thread_data.hpp:63: error: invalid conversion from 'const pthread_attr_t*' to 'pthread_attr_t*'
/home/jholland/nacl_sdk/pepper_34/toolchain/linux_x86_newlib/i686-nacl/usr/include/boost/thread/pthread/thread_data.hpp:63: error: initializing argument 1 of 'int pthread_attr_getstacksize(pthread_attr_t*, size_t*)'
make: *** [newlib/Release/socket_x86_32.o] Error 1
同样，如果我尝试包含任何基本的asio元素，例如：
#include <boost/asio/io_service.hpp>
添加#include行后，我收到了这些编译错误：
~/nacl_sdk/pepper_34/examples/api/socket$ make
CHROME_PATH is undefined, and google-chrome not found in PATH, nor /usr/bin/google-chrome.
CXX newlib/Release/socket_x86_32.o
In file included from /home/jholland/nacl_sdk/pepper_34/toolchain/linux_x86_newlib/i686-nacl/usr/include/boost/asio/detail/posix_fd_set_adapter.hpp:26,
from /home/jholland/nacl_sdk/pepper_34/toolchain/linux_x86_newlib/i686-nacl/usr/include/boost/asio/detail/fd_set_adapter.hpp:22,
from /home/jholland/nacl_sdk/pepper_34/toolchain/linux_x86_newlib/i686-nacl/usr/include/boost/asio/detail/select_reactor.hpp:27,
from /home/jholland/nacl_sdk/pepper_34/toolchain/linux_x86_newlib/i686-nacl/usr/include/boost/asio/detail/reactor.hpp:29,
from /home/jholland/nacl_sdk/pepper_34/toolchain/linux_x86_newlib/i686-nacl/usr/include/boost/asio/detail/impl/task_io_service.ipp:24,
from /home/jholland/nacl_sdk/pepper_34/toolchain/linux_x86_newlib/i686-nacl/usr/include/boost/asio/detail/task_io_service.hpp:203,
from /home/jholland/nacl_sdk/pepper_34/toolchain/linux_x86_newlib/i686-nacl/usr/include/boost/asio/impl/io_service.hpp:71,
from /home/jholland/nacl_sdk/pepper_34/toolchain/linux_x86_newlib/i686-nacl/usr/include/boost/asio/io_service.hpp:767,
from socket.cc:25:
/home/jholland/nacl_sdk/pepper_34/toolchain/linux_x86_newlib/i686-nacl/usr/include/boost/asio/detail/socket_types.hpp:283: error: 'IF_NAMESIZE' was not declared in this scope
/home/jholland/nacl_sdk/pepper_34/toolchain/linux_x86_newlib/i686-nacl/usr/include/boost/asio/detail/socket_types.hpp:304: error: 'sockaddr_un' does not name a type
In file included from /home/jholland/nacl_sdk/pepper_34/toolchain/linux_x86_newlib/i686-nacl/usr/include/boost/asio/detail/socket_ops.hpp:326,
from /home/jholland/nacl_sdk/pepper_34/toolchain/linux_x86_newlib/i686-nacl/usr/include/boost/asio/detail/impl/select_reactor.ipp:30,
from /home/jholland/nacl_sdk/pepper_34/toolchain/linux_x86_newlib/i686-nacl/usr/include/boost/asio/detail/select_reactor.hpp:212,
from /home/jholland/nacl_sdk/pepper_34/toolchain/linux_x86_newlib/i686-nacl/usr/include/boost/asio/detail/reactor.hpp:29,
from /home/jholland/nacl_sdk/pepper_34/toolchain/linux_x86_newlib/i686-nacl/usr/include/boost/asio/detail/impl/task_io_service.ipp:24,
from /home/jholland/nacl_sdk/pepper_34/toolchain/linux_x86_newlib/i686-nacl/usr/include/boost/asio/detail/task_io_service.hpp:203,
from /home/jholland/nacl_sdk/pepper_34/toolchain/linux_x86_newlib/i686-nacl/usr/include/boost/asio/impl/io_service.hpp:71,
from /home/jholland/nacl_sdk/pepper_34/toolchain/linux_x86_newlib/i686-nacl/usr/include/boost/asio/io_service.hpp:767,
from socket.cc:25:
/home/jholland/nacl_sdk/pepper_34/toolchain/linux_x86_newlib/i686-nacl/usr/include/boost/asio/detail/impl/socket_ops.ipp: In function 'int boost::asio::detail::socket_ops::close(boost::asio::detail::socket_type, boost::asio::detail::socket_ops::state_type&, bool, boost::system::error_code&)':
/home/jholland/nacl_sdk/pepper_34/toolchain/linux_x86_newlib/i686-nacl/usr/include/boost/asio/detail/impl/socket_ops.ipp:342: error: 'FIONBIO' was not declared in this scope
/home/jholland/nacl_sdk/pepper_34/toolchain/linux_x86_newlib/i686-nacl/usr/include/boost/asio/detail/impl/socket_ops.ipp: In function 'bool boost::asio::detail::socket_ops::set_user_non_blocking(boost::asio::detail::socket_type, boost::asio::detail::socket_ops::state_type&, bool, boost::system::error_code&)':
/home/jholland/nacl_sdk/pepper_34/toolchain/linux_x86_newlib/i686-nacl/usr/include/boost/asio/detail/impl/socket_ops.ipp:384: error: 'FIONBIO' was not declared in this scope
/home/jholland/nacl_sdk/pepper_34/toolchain/linux_x86_newlib/i686-nacl/usr/include/boost/asio/detail/impl/socket_ops.ipp: In function 'bool boost::asio::detail::socket_ops::set_internal_non_blocking(boost::asio::detail::socket_type, boost::asio::detail::socket_ops::state_type&, bool, boost::system::error_code&)':
/home/jholland/nacl_sdk/pepper_34/toolchain/linux_x86_newlib/i686-nacl/usr/include/boost/asio/detail/impl/socket_ops.ipp:437: error: 'FIONBIO' was not declared in this scope
/home/jholland/nacl_sdk/pepper_34/toolchain/linux_x86_newlib/i686-nacl/usr/include/boost/asio/detail/impl/socket_ops.ipp: In function 'bool boost::asio::detail::socket_ops::sockatmark(boost::asio::detail::socket_type, boost::system::error_code&)':
/home/jholland/nacl_sdk/pepper_34/toolchain/linux_x86_newlib/i686-nacl/usr/include/boost/asio/detail/impl/socket_ops.ipp:617: error: '::sockatmark' has not been declared
/home/jholland/nacl_sdk/pepper_34/toolchain/linux_x86_newlib/i686-nacl/usr/include/boost/asio/detail/impl/socket_ops.ipp: In function 'size_t boost::asio::detail::socket_ops::available(boost::asio::detail::socket_type, boost::system::error_code&)':
/home/jholland/nacl_sdk/pepper_34/toolchain/linux_x86_newlib/i686-nacl/usr/include/boost/asio/detail/impl/socket_ops.ipp:637: error: 'FIONREAD' was not declared in this scope
/home/jholland/nacl_sdk/pepper_34/toolchain/linux_x86_newlib/i686-nacl/usr/include/boost/asio/detail/impl/socket_ops.ipp: In function 'void boost::asio::detail::socket_ops::init_buf(boost::asio::detail::socket_ops::buf&, void*, size_t)':
/home/jholland/nacl_sdk/pepper_34/toolchain/linux_x86_newlib/i686-nacl/usr/include/boost/asio/detail/impl/socket_ops.ipp:687: error: invalid use of incomplete type 'struct iovec'
/home/jholland/nacl_sdk/pepper_34/include/newlib/sys/socket.h:304: error: forward declaration of 'struct iovec'
/home/jholland/nacl_sdk/pepper_34/toolchain/linux_x86_newlib/i686-nacl/usr/include/boost/asio/detail/impl/socket_ops.ipp:688: error: invalid use of incomplete type 'struct iovec'
/home/jholland/nacl_sdk/pepper_34/include/newlib/sys/socket.h:304: error: forward declaration of 'struct iovec'
/home/jholland/nacl_sdk/pepper_34/toolchain/linux_x86_newlib/i686-nacl/usr/include/boost/asio/detail/impl/socket_ops.ipp: In function 'void boost::asio::detail::socket_ops::init_buf(boost::asio::detail::socket_ops::buf&, const void*, size_t)':
/home/jholland/nacl_sdk/pepper_34/toolchain/linux_x86_newlib/i686-nacl/usr/include/boost/asio/detail/impl/socket_ops.ipp:698: error: invalid use of incomplete type 'struct iovec'
/home/jholland/nacl_sdk/pepper_34/include/newlib/sys/socket.h:304: error: forward declaration of 'struct iovec'
/home/jholland/nacl_sdk/pepper_34/toolchain/linux_x86_newlib/i686-nacl/usr/include/boost/asio/detail/impl/socket_ops.ipp:699: error: invalid use of incomplete type 'struct iovec'
/home/jholland/nacl_sdk/pepper_34/include/newlib/sys/socket.h:304: error: forward declaration of 'struct iovec'
/home/jholland/nacl_sdk/pepper_34/toolchain/linux_x86_newlib/i686-nacl/usr/include/boost/asio/detail/impl/socket_ops.ipp: In function 'int boost::asio::detail::socket_ops::ioctl(boost::asio::detail::socket_type, boost::asio::detail::socket_ops::state_type&, int, boost::asio::detail::ioctl_arg_type*, boost::system::error_code&)':
/home/jholland/nacl_sdk/pepper_34/toolchain/linux_x86_newlib/i686-nacl/usr/include/boost/asio/detail/impl/socket_ops.ipp:1689: error: 'FIONBIO' was not declared in this scope
/home/jholland/nacl_sdk/pepper_34/toolchain/linux_x86_newlib/i686-nacl/usr/include/boost/asio/detail/impl/socket_ops.ipp: In function 'const char* boost::asio::detail::socket_ops::inet_ntop(int, const void*, char*, size_t, long unsigned int, boost::system::error_code&)':
/home/jholland/nacl_sdk/pepper_34/toolchain/linux_x86_newlib/i686-nacl/usr/include/boost/asio/detail/impl/socket_ops.ipp:1974: error: 'IF_NAMESIZE' was not declared in this scope
/home/jholland/nacl_sdk/pepper_34/toolchain/linux_x86_newlib/i686-nacl/usr/include/boost/asio/detail/impl/socket_ops.ipp:1979: error: 'if_name' was not declared in this scope
/home/jholland/nacl_sdk/pepper_34/toolchain/linux_x86_newlib/i686-nacl/usr/include/boost/asio/detail/impl/socket_ops.ipp:1979: error: 'if_indextoname' was not declared in this scope
/home/jholland/nacl_sdk/pepper_34/toolchain/linux_x86_newlib/i686-nacl/usr/include/boost/asio/detail/impl/socket_ops.ipp:1981: error: 'if_name' was not declared in this scope
/home/jholland/nacl_sdk/pepper_34/toolchain/linux_x86_newlib/i686-nacl/usr/include/boost/asio/detail/impl/socket_ops.ipp: In function 'int boost::asio::detail::socket_ops::inet_pton(int, const char*, void*, long unsigned int*, boost::system::error_code&)':
/home/jholland/nacl_sdk/pepper_34/toolchain/linux_x86_newlib/i686-nacl/usr/include/boost/asio/detail/impl/socket_ops.ipp:2209: error: 'if_nametoindex' was not declared in this scope
/home/jholland/nacl_sdk/pepper_34/toolchain/linux_x86_newlib/i686-nacl/usr/include/boost/asio/detail/impl/socket_ops.ipp: In function 'int boost::asio::detail::socket_ops::gethostname(char*, int, boost::system::error_code&)':
/home/jholland/nacl_sdk/pepper_34/toolchain/linux_x86_newlib/i686-nacl/usr/include/boost/asio/detail/impl/socket_ops.ipp:2251: error: '::gethostname' has not been declared
make: *** [newlib/Release/socket_x86_32.o] Error 1
（旁注：我不认为顶部的CHROME_PATH警告会导致这些错误，因为即使没有我的编辑，我也会对示例发出相同的警告，但这些示例仍然有用。我想它＆＃39 ;因为我在没有安装chrome的vm上构建（或者是一个运行它的窗口管理器），因为我必须根据boost构建过程在我尝试构建时给出的错误消息来使用linux来构建boost它在OSX上。错误消息表明这会干扰＆＃34; make run_package＆＃34;，否则示例会在＆＃34; make serve＆＃34;下正常运行，并且可以使用chrome从另一台机器进行测试访问页面。我在等待chrome-browser安装时写这个问题，希望我能证实这个理论。）
如果重要，我正在运行Ubuntu 12.04。
我的问题：
答案 0 :(得分：0)
尝试构建glibc构建的boost而不是newlib。您可以通过运行：
来完成此操作TOOLCHAIN=glibc make boost
来自naclports目录。
似乎newlib build of boost并不支持许多提升库：
Component configuration:
- atomic : not building
- chrono : not building
- context : not building
- coroutine : not building
- date_time : building
- exception : not building
- filesystem : not building
- graph : not building
- graph_parallel : not building
- iostreams : not building
- locale : not building
- log : not building
- math : not building
- mpi : not building
- program_options : building
- python : not building
- random : not building
- regex : not building
- serialization : not building
- signals : not building
- system : not building
- test : not building
- thread : not building
- timer : not building
- wave : not building
glibc build似乎支持更多的库：
Component configuration:
- atomic : building
- chrono : building
- context : not building
- coroutine : not building
- date_time : building
- exception : building
- filesystem : building
- graph : building
- graph_parallel : building
- iostreams : building
- locale : building
- log : building
- math : building
- mpi : not building
- program_options : building
- python : not building
- random : building
- regex : building
- serialization : building
- signals : not building
- system : building
- test : building
- thread : building
- timer : building
- wave : building