gcc 编译问题 请高手指点

[s4426565]

我写了一段程序如下

#include<pthread.h>
#include<stdio.h>
void* threadFunction(void* input);
int loop = 0;

int main( int argc , char **argv)
{
pthread_t t1;
pthread_create(&t1,NULL,threadFunction,NULL);

printf("Thread_erzeugt\n");
pthread_join(t1,NULL);

return 0;
}

void* threadFunction(void* input)
{
while(loop<10)
{
printf("Nummer:_%d\n",loop);
loop++;
}
return NULL;
}

命名为 versuch1.c
运行 gcc versuch1.c /usr/lib/libpthread.a -o versuch1
error 为：


/usr/lib/libpthread.a(pthread_create.o): In function `allocate_stack':
/build/buildd/glibc-2.6.1/build-tree/glibc-2.6.1/nptl/allocatestack.c:411: undefined reference to `_dl_stack_flags'
/build/buildd/glibc-2.6.1/build-tree/glibc-2.6.1/nptl/allocatestack.c:547: undefined reference to `_dl_stack_flags'
/usr/lib/libpthread.a(ptw-pause.o): In function `__pause_nocancel':
(.text+0x18): undefined reference to `__syscall_error'
/usr/lib/libpthread.a(ptw-pause.o): In function `__pause_nocancel':
(.text+0x3b): undefined reference to `__syscall_error'
/usr/lib/libpthread.a(init.o): In function `__pthread_initialize_minimal_internal':
/build/buildd/glibc-2.6.1/build-tree/glibc-2.6.1/nptl/init.c:264: undefined reference to `__libc_setup_tls'
/build/buildd/glibc-2.6.1/build-tree/glibc-2.6.1/nptl/init.c:387: undefined reference to `_dl_init_static_tls'
/build/buildd/glibc-2.6.1/build-tree/glibc-2.6.1/nptl/init.c:389: undefined reference to `_dl_wait_lookup_done'
/usr/lib/libpthread.a(ptw-read.o): In function `__read_nocancel':
(.text+0x26): undefined reference to `__syscall_error'
/usr/lib/libpthread.a(ptw-read.o): In function `__read_nocancel':
(.text+0x56): undefined reference to `__syscall_error'
/usr/lib/libpthread.a(ptw-open.o): In function `__open_nocancel':
(.text+0x26): undefined reference to `__syscall_error'
/usr/lib/libpthread.a(ptw-open.o): In function `__open_nocancel':
(.text+0x56): undefined reference to `__syscall_error'
/usr/lib/libpthread.a(sigaction.o): In function `__libc_sigaction':
/build/buildd/glibc-2.6.1/build-tree/glibc-2.6.1/nptl/../sysdeps/unix/sysv/linux/i386/sigaction.c:83: undefined reference to `_dl_sysinfo_dso'
collect2: ld returned 1 exit status


不知道为什么编译不了 看上去我已经连接了正确的库

[iblicf]

gcc -lpthread what.c

[s4426565]

谢谢 iblicf 问题解决了 我看了man gcc 里面好像没有你写的这个参数 这个参数的意思吗 为什么不用指定库的路径就可以直接连接到那里

[hubert_star]

现在的内核默认不是pthread线程，你要指明用才行

[s4426565]

现在的内核默认不是pthread线程，你要指明用才行

我也是这样想的 不过 iblicf 说的真的是可以用的 我在suse10。3 和 ubuntu7。10 上面都试过 不管你在 home／username 还是在 home／username／destop 下都可以编译成功 真的

我做的步骤如下：
lei@linux:~> ls
backup Desktop Downloads Music public_html
bin Documents file: nautilus-debug-log.txt versuch1.c
lei@linux:~> gcc -lpthread versuch1.c
lei@linux:~> ls
a.out bin Documents file: nautilus-debug-log.txt versuch1.c
backup Desktop Downloads Music public_html
lei@linux:~> ./a.out
Thread_erzeugt
Nummer:_0
Nummer:_1
Nummer:_2
Nummer:_3
Nummer:_4
Nummer:_5
Nummer:_6
Nummer:_7
Nummer:_8
Nummer:_9
lei@linux:~>

[qlhn]

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