Fixes for compilation on Ubuntu 17.04

samo

2017-04-26 819a098258db5b53d126720394644c909f5656a7

 src/timestep.c

@@ -49,12 +49,11 @@
      fd2=fopen(filename,"w");
   else
      fd2=fopen(filename,"a");
      if(fd2==NULL){
         fatal("Cannot open ulm2.csv file for writing",1);
      }
      if(start_iteration==0) //file does not exist
         fprintf(fd2, "Timestep u_00^2 u_10^2 u_11^2 u_20^2 ...\n");	

   if(fd2==NULL){
      fatal("Cannot open ulm2.csv file for writing",1);
   }
   if(start_iteration==0) //file does not exist
      fprintf(fd2, "Timestep u_00^2 u_10^2 u_11^2 u_20^2 ...\n");	
   }

/* RANDOM SEED SET BY CURRENT TIME */
@@ -69,7 +68,7 @@
   ts_fprintf(stdout,"Setting volume V0=%.17f\n",V0);
   if(A0<0.000001)
      A0=vesicle->area;
      ts_fprintf(stdout,"Setting area A0=%.17f\n",A0);
   ts_fprintf(stdout,"Setting area A0=%.17f\n",A0);
   epsvol=4.0*sqrt(2.0*M_PI)/pow(3.0,3.0/4.0)*V0/pow(vesicle->tlist->n,3.0/2.0);
    epsarea=A0/(ts_double)vesicle->tlist->n;
  //  fprintf(stderr, "DVol=%1.16f (%1.16f), V0=%1.16f\n", epsvol,0.003e-2*V0,V0);