我正在尝试将 xubuntu 上的 boost 1.47 与 gcc4.6 和 glibc 2.13 链接起来。到目前为止，我无法编译以下简单程序 main.cpp:
#include <cstdlib>
#include <boost/ref.hpp>
#include <boost/thread.hpp>
int main() {
size_t n_threads = boost::thread::hardware_concurrency();
return 0;
}
当我编译时:
g++ -lboost_thread -lboost_regex -o mc main.cpp -static -lpthread /usr/local/lib/libboost_regex.a /usr/local/lib/libboost_thread.a
我从 boost 中得到了一堆类似于以下的错误:
/usr/local/lib/libboost_thread.a(thread.o): In function `_ZN5boost9call_onceIPFvvEEEvRNS_9once_flagET_.constprop.100':
thread.cpp:(.text+0x47): undefined reference to `pthread_mutex_lock'
thread.cpp:(.text+0x73): undefined reference to `pthread_cond_wait'
thread.cpp:(.text+0xb9): undefined reference to `pthread_mutex_unlock'
thread.cpp:(.text+0xc8): undefined reference to `pthread_key_create'
thread.cpp:(.text+0xd2): undefined reference to `pthread_mutex_lock'
thread.cpp:(.text+0xf5): undefined reference to `pthread_cond_broadcast'
thread.cpp:(.text+0x10e): undefined reference to `pthread_mutex_unlock'
还有:
/usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/4.6.1/libgcc_eh.a(unwind-dw2.o): In function `uw_init_context_1':
(.text+0x20bd): undefined reference to `pthread_once'
/usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/4.6.1/libgcc_eh.a(unwind-dw2-fde-glibc.o): In function `__register_frame_info_bases':
(.text+0x16d4): undefined reference to `pthread_mutex_lock'
/usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/4.6.1/libgcc_eh.a(unwind-dw2-fde-glibc.o): In function `__register_frame_info_table_bases':
(.text+0x179b): undefined reference to `pthread_mutex_lock'
/usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/4.6.1/libgcc_eh.a(unwind-dw2-fde-glibc.o): In function `__deregister_frame_info_bases':
(.text+0x183e): undefined reference to `pthread_mutex_lock'
/usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/4.6.1/libgcc_eh.a(unwind-dw2-fde-glibc.o): In function `__deregister_frame_info_bases':
(.text+0x18c6): undefined reference to `pthread_mutex_unlock'
/usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/4.6.1/libgcc_eh.a(unwind-dw2-fde-glibc.o): In function `_Unwind_Find_FDE':
(.text+0x1976): undefined reference to `pthread_mutex_lock'
/usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/4.6.1/libgcc_eh.a(unwind-dw2-fde-glibc.o): In function `_Unwind_Find_FDE':
(.text+0x19c7): undefined reference to `pthread_mutex_unlock'
/usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/4.6.1/libgcc_eh.a(unwind-dw2-fde-glibc.o): In function `__register_frame_info_bases':
(.text+0x16f3): undefined reference to `pthread_mutex_unlock'
/usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/4.6.1/libgcc_eh.a(unwind-dw2-fde-glibc.o): In function `__register_frame_info_table_bases':
(.text+0x17ba): undefined reference to `pthread_mutex_unlock'
collect2: ld returned 1 exit status
什么会导致这样的问题？ 我在这里提供了足够的信息吗？ 非常感谢任何解决此问题的建议!
最佳答案
尝试将“-lpthread”移动到链接器的最后一个参数。 See this link
关于c++ - 链接到 boost_thread 的问题，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/6919534/