gcov-io.c: Convert prototypes to ISO C90.

	* gcov-io.c: Convert prototypes to ISO C90.
	* gcov-io.h: Likewise.

From-SVN: r68735

gcc/gcov-io.c

@@ -90,7 +90,7 @@ gcov_open (const char *name, int mode)
    on failure or error flag set.  */
 
 GCOV_LINKAGE int
-gcov_close ()
+gcov_close (void)
 {
   if (gcov_var.file)
     {
@@ -388,7 +388,7 @@ gcov_read_bytes (unsigned bytes)
    error, overflow flag on overflow */
 
 GCOV_LINKAGE gcov_unsigned_t
-gcov_read_unsigned ()
+gcov_read_unsigned (void)
 {
   gcov_unsigned_t value = 0;
   unsigned ix;
@@ -411,7 +411,7 @@ gcov_read_unsigned ()
    error, overflow flag on overflow */
 
 GCOV_LINKAGE gcov_type
-gcov_read_counter ()
+gcov_read_counter (void)
 {
   gcov_type value = 0;
   unsigned ix;
@@ -438,7 +438,7 @@ gcov_read_counter ()
 
 #if !IN_LIBGCOV
 GCOV_LINKAGE const char *
-gcov_read_string ()
+gcov_read_string (void)
 {
   unsigned length = gcov_read_unsigned ();
   
@@ -506,7 +506,7 @@ gcov_seek (gcov_position_t base)
 /* Return the modification time of the current gcov file.  */
 
 GCOV_LINKAGE time_t
-gcov_time ()
+gcov_time (void)
 {
   struct stat status;
   

gcc/gcov-io.h

@@ -500,7 +500,7 @@ gcov_position (void)
 /* Return nonzero if we read to end of file.  */
 
 static inline int
-gcov_is_eof ()
+gcov_is_eof (void)
 {
   return !gcov_var.overread;
 }
@@ -508,7 +508,7 @@ gcov_is_eof ()
 /* Return nonzero if the error flag is set.  */
 
 static inline int
-gcov_is_error ()
+gcov_is_error (void)
 {
   return gcov_var.file ? gcov_var.error : 1;
 }