--- a/scan.c	Tue Feb 24 18:54:50 2015 +0200
+++ b/scan.c	Tue Feb 24 20:28:57 2015 +0200
@@ -35,18 +35,8 @@
 #include "opcodes.h"
 #include "options.h"
 
-int ScanSure PROTO((ADDR_T scanstart));
-int ScanPotential PROTO((ADDR_T scanstart));
-void UnDoScan PROTO((ADDR_T scanstart));
-void DeleteSuspectedParents PROTO((ADDR_T child));
 
-#ifndef __STDC__
-int
-ScanSure (scanstart)
-     ADDR_T scanstart;
-#else
 int ScanSure (ADDR_T scanstart)
-#endif
 {
   ADDR_T address, addr;
   opcodes *instr;
@@ -297,13 +287,8 @@
   return 0;
 }
 
-#ifndef __STDC__
-int
-ScanPotential (scanstart)
-     ADDR_T scanstart;
-#else
+
 int ScanPotential (ADDR_T scanstart)
-#endif
 {
   ADDR_T address, addr;
   opcodes *instr;
@@ -574,12 +559,8 @@
   return 1;
 }
 
-#ifndef __STDC__
-int
-ScanSpecified ()
-#else
+
 int ScanSpecified (void)
-#endif
 {
   table *entry;
 
@@ -604,13 +585,8 @@
   return 0;
 }
 
-#ifndef __STDC__
-void
-UnDoScan (scanstart)
-     ADDR_T scanstart;
-#else
+
 void UnDoScan (ADDR_T scanstart)
-#endif
 {
   opcodes *instr;
   unsigned counter;
@@ -648,13 +624,8 @@
   }
 }
 
-#ifndef __STDC__
-void
-DeleteSuspectedParents (child)
-     ADDR_T child;
-#else
+
 void DeleteSuspectedParents (ADDR_T child)
-#endif
 {
   table *entry = NULL;
 
@@ -686,12 +657,8 @@
   UnDoScan (child);
 }
 
-#ifndef __STDC__
-void
-ScanPotentials ()
-#else
+
 void ScanPotentials (void)
-#endif
 {
   table *entry;
   ADDR_T address;
@@ -781,12 +748,8 @@
   }
 }
 
-#ifndef __STDC__
-void
-ScanTheRest ()
-#else
+
 void ScanTheRest (void)
-#endif
 {
   ADDR_T address;
   table *entry;