$NetBSD: patch-heapsort_c,v 1.1 2011/09/14 06:58:35 dholland Exp $

- use valid C

--- heapsort.c.orig	2011-09-14 06:55:50.000000000 +0000
+++ heapsort.c
@@ -57,6 +57,7 @@
 /***********************/
 
 #include <stdio.h>
+#include <stdlib.h>
 #include <math.h>
 
 #ifdef Amiga
@@ -73,7 +74,10 @@
 #include <ctype.h>
 #endif
 
-double nulltime,runtime,sta,stb,dtime();
+int HSORT(long m, long n, long p);
+double dtime(void);
+
+double nulltime,runtime,sta,stb;
 double emips,hmips,lmips,smips[21];
 
 long bplong,ErrorFlag;
@@ -81,7 +85,7 @@ long bplong,ErrorFlag;
 long NLoops[21];
 
 
-void main()
+int main()
 {
 
 long  i,j,k,p,imax;
@@ -91,7 +95,7 @@ bplong = sizeof(long);
 printf("\n   Heap Sort C Program\n");
 printf("   Version 1.0, 04 Oct 1992\n\n");
 
-printf("   Size of long (bytes): %d\n\n",bplong);
+printf("   Size of long (bytes): %ld\n\n",bplong);
 
 printf("   Array Size    RunTime      Scale    MIPS\n");       
 printf("    (bytes)       (sec)\n");
@@ -184,6 +188,7 @@ printf("\n   Runtime is the average for 
 printf("   High MIPS = %8.2lf\n",hmips);
 printf("   Low  MIPS = %8.2lf\n\n",lmips);
 
+return 0;
 }                                  /* End of main */
 
 
@@ -191,7 +196,7 @@ printf("   Low  MIPS = %8.2lf\n\n",lmips
 /*  Heap Sort Program    */
 /*************************/
 
-HSORT(m,n,p)
+int HSORT(m,n,p)
 long m,n,p;
 {
 
@@ -204,7 +209,7 @@ long  count,ca,cb,cc,cd,ce,cf;
 
 msize = m * bplong;
 size  = m - 1;
-base  = (long *)malloc((unsigned)msize);
+base  = malloc(msize);
 
 ia = 106;
 ic = 1283;