Re: using dylib with dmd

[Mike Wey]

On 04/22/2011 10:18 PM, frostmind wrote:

Thank you for your response! Hopefully I've done it right.

Now when everything is within the same folder,
and I execute:
dmd test_d_client.d -L.

(so I'm telling to look for libs in current dir)
Response is now different:

ld: in ., can't map file, errno=22
collect2: ld returned 1 exit status
--- errorlevel 1

What else could be done here to resolve it?


Asuming your lib is named libRatings an is in the current directory, 
this should work:


dmd test_d_client.d -L-L. -L-lRatings

--
Mike Wey

using dylib with dmd

[frostmind]

Greetings every one,

I desperatly searched net about how to compile a d2
program that uses dylib on mac os, but unfortunately no luck.

What I've been doing:

I have a C library compiled as (taken from http://developer.apple.com/):
gcc -dynamiclib -std=gnu99 Ratings.c -current_version 0.1 
-compatibility_version 0.1 -
fvisibility=default -o libRatings.A.g
 -- so I have libRatings.A.dylib that my testapp will use.

I've converted Ratings.h header of the lib to Ratings.d file, all functions 
enclosed in extern(C);

I created a test program: test_d_client.d

import Ratings;
import std.stdio;

void main() {
writeln(Starting test);

char[] value1 = *.dup;
addRating(value1.ptr);
writeln(rating: %s, ratings());
}

And now, when I execute: dmd test_d_client.d I get following output:

Undefined symbols:
  _addRating, referenced from:
  __Dmain in test_d_client.o
  _ratings, referenced from:
  __Dmain in test_d_client.o
ld: symbol(s) not found
collect2: ld returned 1 exit status
--- errorlevel 1

What I am doing wrong here?

Re: using dylib with dmd

[Jesse Phillips]

frostmind Wrote:

 And now, when I execute: dmd test_d_client.d I get following output:
 
 Undefined symbols:
   _addRating, referenced from:
   __Dmain in test_d_client.o
   _ratings, referenced from:
   __Dmain in test_d_client.o
 ld: symbol(s) not found
 collect2: ld returned 1 exit status
 --- errorlevel 1
 
 What I am doing wrong here?

You need to tell the linker where your library is. You can just pass it to dmd 
on the commandline.

Re: using dylib with dmd

[frostmind]

Thank you for your response! Hopefully I've done it right.

Now when everything is within the same folder,
and I execute:
dmd test_d_client.d -L.

(so I'm telling to look for libs in current dir)
Response is now different:

ld: in ., can't map file, errno=22
collect2: ld returned 1 exit status
--- errorlevel 1

What else could be done here to resolve it?