I'm having trouble creating a binary from this source:

  import std.stdio;
  import std.process;

  int main()
  {
      writefln("Hello world! I'm going to run something!");
      system("something");
      return 0;
  }

  $ dmd hello.d
  gcc hello.o -o hello -lphobos -lpthread -lm
  /usr/local/lib/libphobos.a(process.o): In function `_D3std7process7spawnvpFiAaAAaZi':
  std/process.d:(.gnu.linkonce.t_D3std7process7spawnvpFiAaAAaZi+0x44): undefined reference to `spawnvp'
  collect2: ld returned 1 exit status
  --- errorlevel 1

Googling for "phobos spawnvp" just shows a message that this was introduced on dmd 0.113, John R. acknowledged this as a bug, but I'm using 0.141 and still get the same error. Is this going to be fixed in a future release of dmd or do I have to get dirty and do it myself? In which case, what do I have to do? The messages found by Google don't show any step by step instructions on how to fix this.

In article <pan.2005.12.28.22.01.42.983469@ya.com>, Grzegorz Adam Hankiewicz says...
>
>I'm having trouble creating a binary from this source:
>
>  import std.stdio;
>  import std.process;
> 
>  int main()
>  {
>      writefln("Hello world! I'm going to run something!");
>      system("something");
>      return 0;
>  }
>
>  $ dmd hello.d
>  gcc hello.o -o hello -lphobos -lpthread -lm
>  /usr/local/lib/libphobos.a(process.o): In function `_D3std7process7spawnvpFiAaAAaZi':
>  std/process.d:(.gnu.linkonce.t_D3std7process7spawnvpFiAaAAaZi+0x44): undefined reference to `spawnvp'
>  collect2: ld returned 1 exit status
>  --- errorlevel 1
>
>Googling for "phobos spawnvp" just shows a message that this was introduced on dmd 0.113, John R. acknowledged this as a bug, but I'm using 0.141 and still get the same error. Is this going to be fixed in a future release of dmd or do I have to get dirty and do it myself? In which case, what do I have to do? The messages found by Google don't show any step by step instructions on how to fix this.
>

I've never ben quite sure what was happening with this error but it always seems to have something to do with getting the right libraries passed to gcc.

try this:

gcc hello.o -o hello <path_to_dmd>/lib/libphobos.a -lpthread -lm

Grzegorz Adam Hankiewicz escribió:
> I'm having trouble creating a binary from this source:
> 
>   import std.stdio;
>   import std.process;
>     int main()
>   {
>       writefln("Hello world! I'm going to run something!");
>       system("something");
>       return 0;
>   }
> 
>   $ dmd hello.d
>   gcc hello.o -o hello -lphobos -lpthread -lm   /usr/local/lib/libphobos.a(process.o): In function `_D3std7process7spawnvpFiAaAAaZi':
>   std/process.d:(.gnu.linkonce.t_D3std7process7spawnvpFiAaAAaZi+0x44): undefined reference to `spawnvp'
>   collect2: ld returned 1 exit status
>   --- errorlevel 1
> 
> Googling for "phobos spawnvp" just shows a message that this was
> introduced on dmd 0.113, John R. acknowledged this as a bug, but
> I'm using 0.141 and still get the same error. Is this going to be
> fixed in a future release of dmd or do I have to get dirty and do it
> myself? In which case, what do I have to do? The messages found by
> Google don't show any step by step instructions on how to fix this.
> 

Open std/process.d and std/c/process.d, and put version(Windows) around everything that starts with spawn. Then, recompile Phobos and copy it (libphobos.a) to the appropiate directory.

-- 
Carlos Santander Bernal

El Wed, 28 Dec 2005 23:11:02 +0000, BCS escribió:
>>  $ dmd hello.d
>>  gcc hello.o -o hello -lphobos -lpthread -lm
>>  /usr/local/lib/libphobos.a(process.o): In function `_D3std7process7spawnvpFiAaAAaZi':
>>  std/process.d:(.gnu.linkonce.t_D3std7process7spawnvpFiAaAAaZi+0x44): undefined reference to `spawnvp'
>>  collect2: ld returned 1 exit status
>>  --- errorlevel 1
>[...]
> 
> try this:
> 
> gcc hello.o -o hello <path_to_dmd>/lib/libphobos.a -lpthread -lm

Same result. Unsurprising, since libphobos.a doesn't include any spawnvp code:

  [~/test/dmd/dmd/lib]$ nm libphobos.a |grep spawnvp
  00000000 T _D3std7process7spawnvpFiAaAAaZi
           U spawnvp

El Wed, 28 Dec 2005 22:16:06 -0500, Carlos Santander escribió:
> Open std/process.d and std/c/process.d, and put version(Windows)
> around everything that starts with spawn. Then, recompile Phobos
> and copy it (libphobos.a) to the appropiate directory.

Thanks, that fixes it.

spawnvp doesn't exist on linux.

see:

http://www.digitalmars.com/d/archives/digitalmars/D/bugs/2994.html

Carlos has the solution. :)