fix some warnings introduced in the big malloc-reduction patch

src/interface.c

@@ -25,6 +25,7 @@
 #include "playlist.h"
 #include "permission.h"
 #include "sllist.h"
+#include "utils.h"
 
 #include <stdio.h>
 #include <stdlib.h>

src/myfprintf.c

@@ -92,14 +92,16 @@ int myfprintfCloseAndOpenLogFile(void)
 			fopen(myfprintf_outFilename, "a+")) == NULL
 		       && errno == EINTR) ;
 		if (!myfprintf_out) {
-			ERROR("error re-opening log file: %s\n", myfprintf_out);
+			ERROR("error re-opening log file: %s\n",
+			      myfprintf_outFilename);
 			return -1;
 		}
 		while ((myfprintf_err =
 			fopen(myfprintf_errFilename, "a+")) == NULL
 		       && errno == EINTR) ;
-		if (!myfprintf_out) {
-			ERROR("error re-opening log file: %s\n", myfprintf_out);
+		if (!myfprintf_err) {
+			ERROR("error re-opening error file: %s\n",
+			      myfprintf_errFilename);
 			return -1;
 		}
 		while (dup2(fileno(myfprintf_out), 1) < 0 && errno == EINTR) ;

src/sllist.c

@@ -18,6 +18,7 @@
 
 /* a very simple singly-linked-list structure for queues/buffers */
 
+#include <string.h>
 #include "sllist.h"
 #include "utils.h"
 

src/sllist.h

@@ -3,8 +3,6 @@
 #ifndef SLLIST_H
 #define SLLIST_H
 
-#include "utils.h"
-
 /* just free the entire structure if it's free-able, the 'data' member
  * should _NEVER_ be explicitly freed
  *