• Alexandr Druzhinin (4/4) Sep 28 2013 I use curl in my application. If I link it with -lcurl - symbols are
• Jordi Sayol (5/7) Sep 28 2013 To link against libcurl (-lcurl) you need to install libcurl development...
• Alexandr Druzhinin (5/10) Sep 28 2013 Thank you for info. I have installed "libcurl4-gnutls-dev" - the same
• Jordi Sayol (14/25) Sep 28 2013 undefined (libcurl3 installed), if I link with -lphobos2 - it links. So ...
• Alexandr Druzhinin (25/27) Sep 28 2013 I use dub, but I did rdmd version:

Alexandr Druzhinin <drug2004 bk.ru> writes:

I use curl in my application. If I link it with -lcurl - symbols are 
undefined (libcurl3 installed), if I link with -lphobos2 - it links. So 
curl is linked with libphobos2.so? But what to do if I need static 
linking? (ubuntu 12.04 x86_64, dmd 2.063.2)

Jordi Sayol <g.sayol yahoo.es> writes:

On 28/09/13 10:28, Alexandr Druzhinin wrote:
 I use curl in my application. If I link it with -lcurl - symbols are undefined
(libcurl3 installed), if I link with -lphobos2 - it links. So curl is linked
with libphobos2.so? But what to do if I need static linking? (ubuntu 12.04
x86_64, dmd 2.063.2)
 

To link against libcurl (-lcurl) you need to install libcurl development files.
On Ubuntu, install one of these three packages: "libcurl4-openssl-dev",
"libcurl4-gnutls-dev" or "libcurl4-nss-dev".

For libcurl static linking you should link against all libraries that libcurl
depends on.

-- 
Jordi Sayol

Alexandr Druzhinin <drug2004 bk.ru> writes:

28.09.2013 17:06, Jordi Sayol пишет:
 On 28/09/13 10:28, Alexandr Druzhinin wrote:
 I use curl in my application. If I link it with -lcurl - symbols are undefined
(libcurl3 installed), if I link with -lphobos2 - it links. So curl is linked
with libphobos2.so? But what to do if I need static linking? (ubuntu 12.04
x86_64, dmd 2.063.2)

 To link against libcurl (-lcurl) you need to install libcurl development
files. On Ubuntu, install one of these three packages: "libcurl4-openssl-dev",
"libcurl4-gnutls-dev" or "libcurl4-nss-dev".

 For libcurl static linking you should link against all libraries that libcurl
depends on.

Thank you for info. I have installed "libcurl4-gnutls-dev" - the same 
happens, symbols are undefined. But with -lphobos2 it links... Why 
linker don't find these symbols if libs are installed? Should I pass to 
linker some additional info in this case?

Jordi Sayol <g.sayol yahoo.es> writes:

On 28/09/13 14:41, Alexandr Druzhinin wrote:
 28.09.2013 17:06, Jordi Sayol =D0=BF=D0=B8=D1=88=D0=B5=D1=82:
 On 28/09/13 10:28, Alexandr Druzhinin wrote:
 I use curl in my application. If I link it with -lcurl - symbols are =



undefined (libcurl3 installed), if I link with -lphobos2 - it links. So c=
url is linked with libphobos2.so? But what to do if I need static linking=
? (ubuntu 12.04 x86_64, dmd 2.063.2)

 To link against libcurl (-lcurl) you need to install libcurl developme=


nt files. On Ubuntu, install one of these three packages: "libcurl4-opens=
sl-dev", "libcurl4-gnutls-dev" or "libcurl4-nss-dev".
 For libcurl static linking you should link against all libraries that =


libcurl depends on.

 Thank you for info. I have installed "libcurl4-gnutls-dev" - the same h=

appens, symbols are undefined. But with -lphobos2 it links... Why linker =
don't find these symbols if libs are installed? Should I pass to linker s=
ome additional info in this case?
=20

Can I see your full command line please?
$ dmd -lcurl ....

--=20
Jordi Sayol

Alexandr Druzhinin <drug2004 bk.ru> writes:

28.09.2013 20:14, Jordi Sayol пишет:
 Can I see your full command line please?
 $ dmd -lcurl ....

I use dub, but I did rdmd version:
rdmd --build-only -I/home/drug/.dub/packages/derelict-master/import 
-I/home/drug/.dub/packages/glamour-master -version=Derelict3 
-version=gl3n -I/home/drug/.dub/packages/gl3n-master/ 
-I/home/drug/3rdparties/cairoD/src 
-I/home/drug/.dub/packages/arsd-master -version=CAIRO_HAS_PNG_FUNCTIONS 
-L-lphobos2 -L-L/home/drug/3rdparties/cairoD -L-lcairoD -L-lcairo -L-ldl 
-ofbin/geoviewer src/app.d

If I change -L-lphobos2 на -L-lcurl I get:
/usr/lib/x86_64-linux-gnu/libphobos2.a(curl.o): In function 
`_D3std3net4curl4Curl19_sharedStaticCtor34FZv':
std/net/curl.d:(.text._D3std3net4curl4Curl19_sharedStaticCtor34FZv+0xf): 
undefined reference to `curl_global_init'
/usr/lib/x86_64-linux-gnu/libphobos2.a(curl.o): In function 
`_D3std3net4curl4Curl19_sharedStaticDtor35FZv':
std/net/curl.d:(.text._D3std3net4curl4Curl19_sharedStaticDtor35FZv+0x5): 
undefined reference to `curl_global_cleanup'
/usr/lib/x86_64-linux-gnu/libphobos2.a(curl_144c_140.o): In function 
`_D3std3net4curl4HTTP4Impl6__dtorMFZv':
std/net/curl.d:(.text._D3std3net4curl4HTTP4Impl6__dtorMFZv+0x19): 
undefined reference to `curl_slist_free_all'
...

and so on. That is in this case I have static linking but curl symbols 
are not definded somehow.