Patch to:
1. make savi 64-bit clean by use of u_int16_t etc.
2. clean up file-handling use.

Patch from Claus-Justus Heine <rotdrop@users.sourceforge.net>
http://sourceforge.net/tracker/index.php?func=detail&aid=946504&group_id=36827&atid=418163

diff -c5pr savi1.2.3/src/gv_utils.c savi1.2.3-64-clean/src/gv_utils.c
*** savi1.2.3/src/gv_utils.c	Thu Apr 15 23:00:00 2004
--- savi1.2.3-64-clean/src/gv_utils.c	Sun May  2 22:53:50 2004
*************** test_ieee_float()
*** 77,88 ****
  
  
  void
  gv_stream_init_proc()
  {
!   gv_out = stdout;
!   gv_in = stdin;
  }
  
  /*
   * gv_init_proc
   *
--- 77,99 ----
  
  
  void
  gv_stream_init_proc()
  {
!   /* we redirect stdout to stderr and close stdin */
!   int fdout, fdin, fderr;
! 
!   fdin  = dup(fileno(stdin));
!   fdout = dup(fileno(stdout));
!   fderr = dup(fileno(stderr));
! 
!   gv_out = fdopen(fdout, "a");
!   fclose(stdout);
!   stdout = fdopen(fderr, "a");
!   gv_in = fdopen(fdin, "r");
!   fclose(stdin);
!   stdin = fopen("/dev/null", "r");
  }
  
  /*
   * gv_init_proc
   *
*************** gv_send_cmd(int argc, char *argv[])
*** 447,457 ****
   * to native (big endian) format.
   * This is for writing in binary format to Geomview and
   * assumes that unsigned ints are a 32 bit word.
   */
  void
! htonl_buffer(unsigned long int *buf, unsigned int n)
  {
    /*
     * if we are not little-endian, do nothing.
     */
    if (GV_BINARY_FORMAT_AVAILABLE != GV_LITTLE_ENDIAN) return;
--- 458,468 ----
   * to native (big endian) format.
   * This is for writing in binary format to Geomview and
   * assumes that unsigned ints are a 32 bit word.
   */
  void
! htonl_buffer(u_int32_t *buf, unsigned int n)
  {
    /*
     * if we are not little-endian, do nothing.
     */
    if (GV_BINARY_FORMAT_AVAILABLE != GV_LITTLE_ENDIAN) return;
*************** htonl_buffer(unsigned long int *buf, uns
*** 469,479 ****
   * to native (big endian) format.
   * This is for writing in binary format to Geomview and
   * assumes that unsigned shorts are a 16 bit word.
   */
  void
! htons_buffer(unsigned short int *buf, unsigned int n)
  {
    /*
     * if we are not little-endian, do nothing.
     */
    if (GV_BINARY_FORMAT_AVAILABLE != GV_LITTLE_ENDIAN) return;
--- 480,490 ----
   * to native (big endian) format.
   * This is for writing in binary format to Geomview and
   * assumes that unsigned shorts are a 16 bit word.
   */
  void
! htons_buffer(u_int16_t *buf, unsigned int n)
  {
    /*
     * if we are not little-endian, do nothing.
     */
    if (GV_BINARY_FORMAT_AVAILABLE != GV_LITTLE_ENDIAN) return;
diff -c5pr savi1.2.3/src/include/gv_utils.h savi1.2.3-64-clean/src/include/gv_utils.h
*** savi1.2.3/src/include/gv_utils.h	Thu Apr 15 23:00:00 2004
--- savi1.2.3-64-clean/src/include/gv_utils.h	Sun May  2 22:53:50 2004
***************
*** 22,31 ****
--- 22,32 ----
  
  #ifndef _GV_UTILS_H_
  #define _GV_UTILS_H_
  
  #include <limits.h>
+ #include <sys/types.h>
  
  /*
   * Try to check if machine has 32-bit unsigned ints and 32-bit floats
   * and 16-bit shorts, then use a more efficient method of writing to
   * Geomview. The test is conservative; you may increase performance
*************** unsigned int gv_ready(void);
*** 63,72 ****
  char *gv_begin_cmd(int argc, char *argv[]);
  char *gv_end_cmd(int argc, char *argv[]);
  char *gv_wait_cmd(int argc, char *argv[]);
  char *gv_send_cmd(int argc, char *argv[]);
  
! void htonl_buffer(unsigned long int *buf, unsigned int n);
! void htons_buffer(unsigned short int *buf, unsigned int n);
  
  #endif
  /* !_GV_UTILS_H_ */
--- 64,73 ----
  char *gv_begin_cmd(int argc, char *argv[]);
  char *gv_end_cmd(int argc, char *argv[]);
  char *gv_wait_cmd(int argc, char *argv[]);
  char *gv_send_cmd(int argc, char *argv[]);
  
! void htonl_buffer(u_int32_t *buf, unsigned int n);
! void htons_buffer(u_int16_t *buf, unsigned int n);
  
  #endif
  /* !_GV_UTILS_H_ */