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digitalmars.D.bugs - v0.139: importing std.process gives undefined reference on linux

I get an undefined reference error whenever I import std.process on 
Fedora Core 4 and DMD 0.139.

import std.process;
void main()

Compiling this gives the following output -- oh, and BTW, there's no 
/home/clark on my machine. :-)

$dmd st2.d
gcc st2.o -o st2 -lphobos -lpthread -lm
In function `_D3std7process7spawnvpFiAaAAaZi':
/home/clark/cbx/mars/phobos/std/process.d:58: undefined reference to
collect2: ld returned 1 exit status
--- errorlevel 1

Changing "std.process" to "std.c.process" works. For example:

import std.c.stdio;
import std.c.process; // Skip the ".c" and it breaks.

int main(char[][] args)
     printf("Trying the 'system(cmd)' thing.\n");
     char[] cmd = "/bin/ls -l /root /home >/tmp/ls.out 2>/tmp/ls.err ";
     int err = system(cmd);
     printf("system(cmd) returned %d.\n", err);

     return err;
Nov 08 2005