********> bugfix.27
Author:   Bill Ross
Date:     6/28/95

Programs: Carnal

Severity: Moderate

Problem:  When using the -O[verwrite] option, mdcrd output files
	  get appended rather than overwriting existing ones.

Cause:    Insufficient thought when adding the -O option.


Fix:  Make the following change to coord.c:
------------------------------------------------------------------
*** OLD coord.c
--- NEW coord.c
***************
*** 133,139
  			exit(1);
   
  		if ((crdptr->idunion.crd.file = 
! 				fopen(crdptr->idunion.crd.name, "a+")) == NULL){
  			perror(crdptr->idunion.crd.name);
  			exit(1);
  		}

--- 133,140 -----
  			exit(1);
   
  		if ((crdptr->idunion.crd.file = 
! 			  fopen(crdptr->idunion.crd.name, (append ? "a+" : "w"))) 
! 									== NULL){
  			perror(crdptr->idunion.crd.name);
  			exit(1);
  		}
***************
*** 137,143
  			perror(crdptr->idunion.crd.name);
  			exit(1);
  		}
! 		if (!exists)
  			fprintf(crdptr->idunion.crd.file, "CARNAL dump\n");
  	}
  }

--- 138,144 -----
  			perror(crdptr->idunion.crd.name);
  			exit(1);
  		}
! 		if (!exists  ||  !append)
  			fprintf(crdptr->idunion.crd.file, "CARNAL dump\n");
  	}
  }
***************
*** 608,614
  				return;
  		}
  	}
-  
  	/*
  	 * set passed all tests: add it into average or print it
  	 */

--- 609,614 -----
  				return;
  		}
  	}
  	/*
  	 * set passed all tests: add it into average or print it
  	 */
------------------------------------------------------------------
Temporary workarounds: Remove .crd output files by hand before
			running when not wanting to append.

Routines affected: COORD

--