急！帮忙看看，gcc 编译报错！

yyuxyz

编译命令：
gcc -Wall -idirafter /opt/oracle8i/u01/precomp/public/ new.c -L/opt/oracle8i/u01/lib -lclntsh -lz
报错：
/lib/libpthread.so.0: undefined reference to `__sysctl@GLIBC_2.2'
/lib/libpthread.so.0: undefined reference to `_IO_list_unlock@GLIBC_2.2'
/lib/libpthread.so.0: undefined reference to `_IO_iter_file@GLIBC_2.2'
/lib/libpthread.so.0: undefined reference to `getrlimit@GLIBC_2.2'
/lib/libpthread.so.0: undefined reference to `_IO_list_resetlock@GLIBC_2.2'
/lib/libpthread.so.0: undefined reference to `_IO_iter_begin@GLIBC_2.2'
/lib/libpthread.so.0: undefined reference to `_dl_cpuclock_offset'
/lib/libpthread.so.0: undefined reference to `__rpc_thread_destroy@GLIBC_2.2.3'
/lib/libpthread.so.0: undefined reference to `__libc_sigaction@GLIBC_2.2'
/lib/libpthread.so.0: undefined reference to `_IO_iter_next@GLIBC_2.2'
/lib/libdl.so.2: undefined reference to `_dl_vsym@GLIBC_2.2'
/lib/libpthread.so.0: undefined reference to `_IO_iter_end@GLIBC_2.2'
/lib/libpthread.so.0: undefined reference to `setrlimit@GLIBC_2.2'
/lib/libpthread.so.0: undefined reference to `_IO_list_lock@GLIBC_2.2'
为何？？？

yyuxyz

linux版本：redhat7.2
[root@test1 usr]# uname -r
2.4.9-e.3smp
gcc版本：
[root@test1 usr]# gcc -v
Reading specs from /usr/i386-glibc21-linux/lib/gcc-lib/i386-redhat-linux/2.96/specs
gcc driver version 2.96 20000731 (Red Hat Linux 7.2 2.96-108.1) executing gcc version egcs-2.91.66

yyuxyz

谢谢！

rantanplan

你使用了ansi标准的pthread库   需要在编译的时候加上 -lpthread

yyuxyz

谢谢，加上参数：-ldl -lm -lnsl

-lpthread 就可以了。谢谢了。