Applied patch by Francesco Chemolli enabling pthreads on AIX.

Rev: src/configure.in:1.210

src/configure.in

-AC_REVISION("$Id: configure.in,v 1.209 1998/07/01 20:21:07 grubba Exp $")
+AC_REVISION("$Id: configure.in,v 1.210 1998/07/03 11:27:29 grubba Exp $")
 AC_INIT(interpret.c)
 AC_CONFIG_HEADER(machine.h)
 
@@ -827,6 +827,10 @@ int main(int argc, char **argv)
 	fi
       ;;
 
+      xAIX*)
+        LIBS="${OLDLIBS} -lpthreads"
+      ;;
+
       *)
         LIBS="${OLDLIBS} -lpthread"
       ;;