On Sun, Jul 1, 2012 at 10:59 AM, Gary Willoughby <dev@kalekold.net> wrote:
I'm using the built-in curl library on Linux i'm getting linker errors. I've installed libcurl4-openssl-dev and it works fine as i can successfully compile a sample program. However when using the D lib i get these errors:

[quote]
:!rdmd api_test.d
/usr/lib/gcc/x86_64-linux-gnu/4.6/../../../x86_64-linux-gnu/libphobos2.a(curl.o): In function `_D3std3net4curl4Curl19_sharedStaticCtor28FZv':
std/net/curl.d:(.text._D3std3net4curl4Curl19_sharedStaticCtor28FZv+0xf): undefined reference to `curl_global_init'
/usr/lib/gcc/x86_64-linux-gnu/4.6/../../../x86_64-linux-gnu/libphobos2.a(curl.o): In function `_D3std3net4curl4Curl19_sharedStaticDtor29FZv':
std/net/curl.d:(.text._D3std3net4curl4Curl19_sharedStaticDtor29FZv+0x5): undefined reference to `curl_global_cleanup'
/usr/lib/gcc/x86_64-linux-gnu/4.6/../../../x86_64-linux-gnu/libphobos2.a(curl_13fa_140.o): In function `_D3std3net4curl4HTTP4Impl6__dtorMFZv':
std/net/curl.d:(.text._D3std3net4curl4HTTP4Impl6__dtorMFZv+0x19): undefined reference to `curl_slist_free_all'
/usr/lib/gcc/x86_64-linux-gnu/4.6/../../../x86_64-linux-gnu/libphobos2.a(curl_13fa_140.o): In function `_D3std3net4curl4HTTP3dupMFZS3std3net4curl4HTTP':
std/net/curl.d:(.text._D3std3net4curl4HTTP3dupMFZS3std3net4curl4HTTP+0x6b): undefined reference to `curl_slist_append'
/usr/lib/gcc/x86_64-linux-gnu/4.6/../../../x86_64-linux-gnu/libphobos2.a(curl_13fa_140.o): In function `_D3std3net4curl4HTTP19clearRequestHeadersMFZv':
std/net/curl.d:(.text._D3std3net4curl4HTTP19clearRequestHeadersMFZv+0x22): undefined reference to `curl_slist_free_all'
/usr/lib/gcc/x86_64-linux-gnu/4.6/../../../x86_64-linux-gnu/libphobos2.a(curl_13fa_140.o): In function `_D3std3net4curl4HTTP16addRequestHeaderMFAxaAxaZv':
std/net/curl.d:(.text._D3std3net4curl4HTTP16addRequestHeaderMFAxaAxaZv+0x5b): undefined reference to `curl_slist_append'
/usr/lib/gcc/x86_64-linux-gnu/4.6/../../../x86_64-linux-gnu/libphobos2.a(curl_13fb_ea.o): In function `_D3std3net4curl3FTP4Impl6__dtorMFZv':
std/net/curl.d:(.text._D3std3net4curl3FTP4Impl6__dtorMFZv+0x18): undefined reference to `curl_slist_free_all'
/usr/lib/gcc/x86_64-linux-gnu/4.6/../../../x86_64-linux-gnu/libphobos2.a(curl_13fb_ea.o): In function `_D3std3net4curl3FTP3dupMFZS3std3net4curl3FTP':
std/net/curl.d:(.text._D3std3net4curl3FTP3dupMFZS3std3net4curl3FTP+0xa6): undefined reference to `curl_slist_append'
/usr/lib/gcc/x86_64-linux-gnu/4.6/../../../x86_64-linux-gnu/libphobos2.a(curl_13fb_ea.o): In function `_D3std3net4curl3FTP13clearCommandsMFZv':
std/net/curl.d:(.text._D3std3net4curl3FTP13clearCommandsMFZv+0x20): undefined reference to `curl_slist_free_all'
/usr/lib/gcc/x86_64-linux-gnu/4.6/../../../x86_64-linux-gnu/libphobos2.a(curl_13fb_ea.o): In function `_D3std3net4curl3FTP10addCommandMFAxaZv':
std/net/curl.d:(.text._D3std3net4curl3FTP10addCommandMFAxaZv+0x31): undefined reference to `curl_slist_append'
/usr/lib/gcc/x86_64-linux-gnu/4.6/../../../x86_64-linux-gnu/libphobos2.a(curl_1400_432.o): In function `_D3std3net4curl4Curl10initializeMFZv':
std/net/curl.d:(.text._D3std3net4curl4Curl10initializeMFZv+0x42): undefined reference to `curl_easy_init'
/usr/lib/gcc/x86_64-linux-gnu/4.6/../../../x86_64-linux-gnu/libphobos2.a(curl_1401_149.o): In function `_D3std3net4curl4Curl3dupMFZS3std3net4curl4Curl':
std/net/curl.d:(.text._D3std3net4curl4Curl3dupMFZS3std3net4curl4Curl+0x28): undefined reference to `curl_easy_duphandle'
/usr/lib/gcc/x86_64-linux-gnu/4.6/../../../x86_64-linux-gnu/libphobos2.a(curl_1405_37c.o): In function `_D3std3net4curl4Curl8shutdownMFZv':
std/net/curl.d:(.text._D3std3net4curl4Curl8shutdownMFZv+0x1e): undefined reference to `curl_easy_cleanup'
/usr/lib/gcc/x86_64-linux-gnu/4.6/../../../x86_64-linux-gnu/libphobos2.a(curl_1407_14c.o): In function `_D3std3net4curl4Curl3setMFE3etc1c4curl10CurlOptionAxaZv':
std/net/curl.d:(.text._D3std3net4curl4Curl3setMFE3etc1c4curl10CurlOptionAxaZv+0x35): undefined reference to `curl_easy_setopt'
/usr/lib/gcc/x86_64-linux-gnu/4.6/../../../x86_64-linux-gnu/libphobos2.a(curl_1408_14c.o): In function `_D3std3net4curl4Curl3setMFE3etc1c4curl10CurlOptionlZv':
std/net/curl.d:(.text._D3std3net4curl4Curl3setMFE3etc1c4curl10CurlOptionlZv+0x2e): undefined reference to `curl_easy_setopt'
/usr/lib/gcc/x86_64-linux-gnu/4.6/../../../x86_64-linux-gnu/libphobos2.a(curl_1409_14c.o): In function `_D3std3net4curl4Curl3setMFE3etc1c4curl10CurlOptionPvZv':
std/net/curl.d:(.text._D3std3net4curl4Curl3setMFE3etc1c4curl10CurlOptionPvZv+0x2e): undefined reference to `curl_easy_setopt'
/usr/lib/gcc/x86_64-linux-gnu/4.6/../../../x86_64-linux-gnu/libphobos2.a(curl_140a_207.o): In function `_D3std3net4curl4Curl5clearMFE3etc1c4curl10CurlOptionZv':
std/net/curl.d:(.text._D3std3net4curl4Curl5clearMFE3etc1c4curl10CurlOptionZv+0x26): undefined reference to `curl_easy_setopt'
/usr/lib/gcc/x86_64-linux-gnu/4.6/../../../x86_64-linux-gnu/libphobos2.a(curl_140b_2fb.o): In function `_D3std3net4curl4Curl7performMFbZi':
std/net/curl.d:(.text._D3std3net4curl4Curl7performMFbZi+0x23): undefined reference to `curl_easy_perform'
/usr/lib/gcc/x86_64-linux-gnu/4.6/../../../x86_64-linux-gnu/libphobos2.a(curl_1403_4a1.o): In function `_D3std3net4curl4Curl11errorStringMFiZAya':
std/net/curl.d:(.text._D3std3net4curl4Curl11errorStringMFiZAya+0x11): undefined reference to `curl_easy_strerror'
collect2: ld returned 1 exit status
--- errorlevel 1

shell returned 1
[/quote]

I found this error which looks like what i'm getting posted on Stackoverflow:

http://stackoverflow.com/questions/10095150/std-net-curl-linker-errors-in-linux

Is there a fix for this? It looks like the linker parameters are in the wrong order.

I just ended up specifying the link command manually (see my answer on the Stack Overflow).  It's ugly but it works.  Leandro discusses a solution here: <http://d.puremagic.com/issues/show_bug.cgi?id=7044#c1> It hasn't been implemented yet though.

Regards,
Brad Anderson