Moved the declaration of tmpfd in main()

Since tmpfd is only used if HAVE_MKSTEMPS is defined, I moved the declaration from the declaration area down to where it is being used directly, thus avoiding an unused-but-set-variable warning.

jpegoptim.c

@@ -6,7 +6,7 @@
  * requires libjpeg (Independent JPEG Group's JPEG software 
  * release 6a or later...)
  *
- * $Id$
+ * $Id: b5d97f2a4d2b8196ca662c8dd0bedffb8d3fbe71 $
  */
 
 #ifdef HAVE_CONFIG_H
@@ -56,7 +56,7 @@ struct my_error_mgr {
 };
 typedef struct my_error_mgr * my_error_ptr;
 
-const char *rcsid = "$Id$";
+const char *rcsid = "$Id: b5d97f2a4d2b8196ca662c8dd0bedffb8d3fbe71 $";
 
 
 int verbose_mode = 0;
@@ -305,7 +305,7 @@ int main(int argc, char **argv)
  char tmpfilename[MAXPATHLEN],tmpdir[MAXPATHLEN];
  char newname[MAXPATHLEN], dest_path[MAXPATHLEN];
  volatile int i;
- int c,j, tmpfd, searchcount, searchdone;
+ int c,j, searchcount, searchdone;
  int opt_index = 0;
  long insize = 0, outsize = 0, lastsize = 0;
  int oldquality;
@@ -828,14 +828,13 @@ int main(int argc, char **argv)
  /* rely on mkstemps() to create us temporary file safely... */ 
  snprintf(tmpfilename,sizeof(tmpfilename),
  "%sjpegoptim-%d-%d.XXXXXX.tmp", tmpdir, (int)getuid(), (int)getpid());
- if ((tmpfd = mkstemps(tmpfilename,4)) < 0) 
+ if ((int tmpfd = mkstemps(tmpfilename,4)) < 0) 
  fatal("%s, error creating temp file %s: mkstemps() failed",(stdin_mode?"stdin":argv[i]),tmpfilename);
  if ((outfile=fdopen(tmpfd,"wb"))==NULL) 
 #else
  /* if platform is missing mkstemps(), try to create at least somewhat "safe" temp file... */ 
  snprintf(tmpfilename,sizeof(tmpfilename),
  "%sjpegoptim-%d-%d.%ld.tmp", tmpdir, (int)getuid(), (int)getpid(),(long)time(NULL));
- tmpfd=0;
  if ((outfile=fopen(tmpfilename,"wb"))==NULL) 
 #endif
  fatal("error opening temporary file: %s",tmpfilename);