Question

我尝试将libcurl链接到我的程序，但链接器告诉我一些错误。我已经检查过使用了选项“-lcurl”。我还检查过libcurl是否安装正确。我试过的命令是：

gdc myprogram.d -o myprogram -lcurl

链接器告诉我以下错误：

/usr/lib/gcc/x86_64-linux-gnu/4.8/libgphobos2.a(curl.o): In function `_D3std3net4curl4Curl18_sharedStaticCtor1FZv':
/build/buildd/gcc-4.8-4.8.2/build/x86_64-linux-gnu/libphobos/src/../../../../src/libphobos/src/std/net/curl.d:3432: undefined reference to `curl_global_init'
/usr/lib/gcc/x86_64-linux-gnu/4.8/libgphobos2.a(curl.o): In function `_D3std3net4curl4Curl8shutdownMFZv':
/build/buildd/gcc-4.8-4.8.2/build/x86_64-linux-gnu/libphobos/src/../../../../src/libphobos/src/std/net/curl.d:3561: undefined reference to `curl_easy_cleanup'
/usr/lib/gcc/x86_64-linux-gnu/4.8/libgphobos2.a(curl.o): In function `shutdown':
/build/buildd/gcc-4.8-4.8.2/build/x86_64-linux-gnu/libphobos/src/../../../../src/libphobos/src/std/net/curl.d:3561: undefined reference to `curl_easy_cleanup'
/build/buildd/gcc-4.8-4.8.2/build/x86_64-linux-gnu/libphobos/src/../../../../src/libphobos/src/std/net/curl.d:3561: undefined reference to `curl_easy_cleanup'
/build/buildd/gcc-4.8-4.8.2/build/x86_64-linux-gnu/libphobos/src/../../../../src/libphobos/src/std/net/curl.d:3561: undefined reference to `curl_easy_cleanup'
/usr/lib/gcc/x86_64-linux-gnu/4.8/libgphobos2.a(curl.o): In function `_D3std3net4curl4HTTP4Impl6__dtorMFZv':
/build/buildd/gcc-4.8-4.8.2/build/x86_64-linux-gnu/libphobos/src/../../../../src/libphobos/src/std/net/curl.d:2033: undefined reference to `curl_slist_free_all'

有些情况下使用官方编译器dmd，但我找不到gdc的情况。有什么想法吗？

（Ubuntu 14.02 LTS amd64）

Answer 1

你安装了

吗？

libcurl4-gnutls-dev

如果是，试试这个：

gdc -lcurl-gnutls myprogram.d -o myprogram

Answer 2

问题是关于程序如何链接的顺序，在Ubuntu上重要的是在libgphobos后面添加curl以便这可以工作：

gdc myprogram.d /usr/lib/gcc/x86_64-linux-gnu/4.8/libgphobos2.a -o myprogram `curl-config --libs`

some more details

（dlang）如何使用gdc链接libcurl？

2 个答案: