在 AIX 5.3 上构建 WWW::Curl::Easy Perl 模块的未定义符号

Question

我正在尝试在 AIX 5.3 上安装 WWW::Curl::Easy Perl 模块。我已经在 /usr/local 中安装了curl（从源代码）。当尝试构建 Perl 模块时，我得到这样的信息：

$ perl Makefile.PL
Found curl.h in /usr/local/include/curl/curl.h
Building curlopt-constants.c for your libcurl version
Building Easy.pm constants for your libcurl version
Note (probably harmless): No library found for -lcurl
Writing Makefile for WWW::Curl

我认为“可能无害”的错误并不是那么无害。

$ make
Skip blib/lib/WWW/Curl/Form.pm (unchanged)
Skip blib/lib/WWW/Curl.pm (unchanged)
Skip blib/lib/WWW/Curl/Multi.pm (unchanged)
Skip blib/lib/WWW/Curl/Easy.pm (unchanged)
        cc_r -c  -I/usr/local/include  -D_ALL_SOURCE -D_ANSI_C_SOURCE -D_POSIX_SOURCE -qmaxmem=16384 -qnoansialias -DUSE_NATIVE_DLOPEN -DNEED_PTHREAD_INIT -q32 -D_LARGE_FILES -qlonglong -O    -DVERSION=\"3.02\"  -DXS_VERSION=\"3.02\"  "-I/usr/opt/perl5/lib/5.8.2/aix-thread-multi/CORE"   Curl.c
"Curl.xs", line 681.36: 1506-280 (W) Function argument assignment between types "unsigned long*" and "int*" is not allowed.
Running Mkbootstrap for WWW::Curl ()
        chmod 644 Curl.bs
        rm -f blib/arch/auto/WWW/Curl/Curl.so
        ld  -bhalt:4 -bM:SRE -bI:/usr/opt/perl5/lib/5.8.2/aix-thread-multi/CORE/perl.exp -bE:Curl.exp -bnoentry -lpthreads -lc_r Curl.o  -o blib/arch/auto/WWW/Curl/Curl.so              
ld: 0711-317 ERROR: Undefined symbol: .curl_global_init
ld: 0711-317 ERROR: Undefined symbol: .curl_multi_perform
ld: 0711-317 ERROR: Undefined symbol: .curl_multi_fdset
ld: 0711-317 ERROR: Undefined symbol: .curl_multi_remove_handle
ld: 0711-317 ERROR: Undefined symbol: .curl_multi_add_handle
ld: 0711-317 ERROR: Undefined symbol: .curl_global_cleanup
ld: 0711-317 ERROR: Undefined symbol: .curl_easy_getinfo
ld: 0711-317 ERROR: Undefined symbol: .curl_easy_perform
ld: 0711-317 ERROR: Undefined symbol: .curl_slist_free_all
ld: 0711-317 ERROR: Undefined symbol: .curl_slist_append
ld: 0711-317 ERROR: Undefined symbol: .curl_easy_setopt
ld: 0711-317 ERROR: Undefined symbol: .curl_version
ld: 0711-317 ERROR: Undefined symbol: .curl_multi_cleanup
ld: 0711-317 ERROR: Undefined symbol: .curl_multi_init
ld: 0711-317 ERROR: Undefined symbol: .curl_easy_cleanup
ld: 0711-317 ERROR: Undefined symbol: .curl_easy_duphandle
ld: 0711-317 ERROR: Undefined symbol: .curl_easy_init
ld: 0711-345 Use the -bloadmap or -bnoquiet option to obtain more information.
make: The error code from the last command is 8.


Stop.

我怀疑对于熟悉 C 编译器和链接器的人来说这是一件相当简单的事情。感谢任何帮助。

Answer 1

看起来 ld 行中缺少 libcurl 的链接器参数。这是curl-config --libs 的输出，应该类似于-L/opt/local/lib -lcurl。确保 /opt/local/lib/libcurl.so 存在（其中 /opt/local/lib 是 -L 之后的内容）。

您可能有 libcurl 标头，但没有共享库。