--- pdflib-4.0.3/pdflib/p_basic.c~	2002-06-19 18:01:15.000000000 +0200
+++ pdflib-4.0.3/pdflib/p_basic.c	2013-06-11 13:52:10.282606066 +0200
@@ -308,7 +308,7 @@
     switch (type) {
 	/* Issue a warning message and continue */
 	case PDF_NonfatalError:
-	    (void) fprintf(stderr, msg);
+	    (void) fprintf(stderr, "%s", msg);
 	    return;
 
 	/* give up in all other cases */
@@ -324,7 +324,7 @@
 	case PDF_SystemError:
 	case PDF_UnknownError:
 	default:
-	    (void) fprintf(stderr, msg);	/* print message */
+	    (void) fprintf(stderr, "%s", msg);	/* print message */
 	    PDF_delete(p);			/* clean up PDFlib */
 	    exit(99);				/* good-bye */
     }
--- pdflib-4.0.3/bind/perl/pdflib_pl.c~	2002-01-21 20:56:32.000000000 +0100
+++ pdflib-4.0.3/bind/perl/pdflib_pl.c	2013-06-11 13:55:20.607974789 +0200
@@ -407,7 +407,7 @@
 
     /* Issue a warning message and continue for non-fatal errors */
     if (type == PDF_NonfatalError) {
-	fprintf(stderr, error_message);
+	fprintf(stderr, "%s", error_message);
 	return;
     }
 	
--- pdflib-4.0.3/bind/python/pdflib_py.c~	2002-01-07 19:26:29.000000000 +0100
+++ pdflib-4.0.3/bind/python/pdflib_py.c	2013-06-11 13:56:08.775156142 +0200
@@ -578,7 +578,7 @@
 
     /* Issue a warning message and continue for non-fatal errors */
     if (type == PDF_NonfatalError) {
-	fprintf(stderr, error_message);
+	fprintf(stderr, "%s", error_message);
 	return;
     }
 	
--- pdflib-4.0.3/bind/tcl/pdflib_tcl.c~	2002-01-07 19:26:29.000000000 +0100
+++ pdflib-4.0.3/bind/tcl/pdflib_tcl.c	2013-06-11 13:56:38.242137592 +0200
@@ -397,7 +397,7 @@
 
     /* Issue a warning message and continue for non-fatal errors */
     if (type == PDF_NonfatalError) {
-	fprintf(stderr, ex->buffer);
+	fprintf(stderr, "%s", ex->buffer);
 	return;
     }
 	
--- pdflib-4.0.3/bind/perl/pdflib_pl.c~	2013-06-11 13:57:16.709215093 +0200
+++ pdflib-4.0.3/bind/perl/pdflib_pl.c	2013-06-11 14:28:31.358937900 +0200
@@ -388,7 +388,7 @@
 #include "pdflib.h"
 
 /* exception handling is currently not thread-safe! */
-#define SWIG_exception(msg)   	croak(msg)
+#define SWIG_exception(msg)   	croak("%s", msg)
 static jmp_buf			exception_buffer;
 static int			exception_status;
 static char			error_message[256];