在Linux上的GCC编译错误

Question

我想编译我的代码为GnuTLS，但在编译时出现以下错误。

我已检查gnutls.h存在于我的系统中/usr/include/gnutls/。

还有什么可以是原因？

gcc -o tls.o tls.c 
/tmp/ccfyZ1Bd.o: In function `main': 
tls.c:(.text+0x1c): undefined reference to `gnutls_global_init' 
tls.c:(.text+0x28): undefined reference to `gnutls_anon_allocate_client_credentials' 
tls.c:(.text+0x3c): undefined reference to `gnutls_init' 
tls.c:(.text+0x58): undefined reference to `gnutls_priority_set_direct' 
tls.c:(.text+0x74): undefined reference to `gnutls_credentials_set' 
tls.c:(.text+0x79): undefined reference to `tcp_connect' 
tls.c:(.text+0x91): undefined reference to `gnutls_transport_set_ptr' 
tls.c:(.text+0x9d): undefined reference to `gnutls_handshake' 
tls.c:(.text+0xdc): undefined reference to `gnutls_perror' 
tls.c:(.text+0x109): undefined reference to `gnutls_record_send' 
tls.c:(.text+0x125): undefined reference to `gnutls_record_recv' 
tls.c:(.text+0x154): undefined reference to `gnutls_strerror' 
tls.c:(.text+0x1e6): undefined reference to `gnutls_bye' 
tls.c:(.text+0x1f2): undefined reference to `tcp_close' 
tls.c:(.text+0x1fe): undefined reference to `gnutls_deinit' 
tls.c:(.text+0x20a): undefined reference to `gnutls_anon_free_client_credentials' 
tls.c:(.text+0x20f): undefined reference to `gnutls_global_deinit' 
collect2: ld returned 1 exit status 

Answer 1

这是一个链接错误。您需要包含一些带有-l标志的库。在不知道设置的情况下进行猜测，我会尝试-lgnutls