2 files changed, 5 insertions, 5 deletions
diff --git a/src/io/inkscapestream.cpp b/src/io/inkscapestream.cpp
index e527101f6..c89dd70fc 100644
--- a/src/io/inkscapestream.cpp
+++ b/src/io/inkscapestream.cpp
@@ -509,7 +509,7 @@ void BasicWriter::put(gunichar ch)
 /**
  * Provide printf()-like formatting
  */ 
-Writer &BasicWriter::printf(char *fmt, ...)
+Writer &BasicWriter::printf(char const *fmt, ...)
 {
     va_list args;
     va_start(args, fmt);
@@ -708,7 +708,7 @@ Writer& operator<< (Writer &writer, Glib::ustring &val)
 Writer& operator<< (Writer &writer, std::string &val)
     { return writer.writeStdString(val); }
 
-Writer& operator<< (Writer &writer, char *val)
+Writer& operator<< (Writer &writer, char const *val)
     { return writer.writeString(val); }
 
 Writer& operator<< (Writer &writer, bool val)
diff --git a/src/io/inkscapestream.h b/src/io/inkscapestream.h
index 9c624af8f..4388a2815 100644
--- a/src/io/inkscapestream.h
+++ b/src/io/inkscapestream.h
@@ -475,7 +475,7 @@ public:
     virtual void put(gunichar ch) = 0;
     
     /* Formatted output */
-    virtual Writer& printf(char *fmt, ...) G_GNUC_PRINTF(2,3) = 0;
+    virtual Writer& printf(char const *fmt, ...) G_GNUC_PRINTF(2,3) = 0;
 
     virtual Writer& writeChar(char val) = 0;
 
@@ -531,7 +531,7 @@ public:
     
     
     /* Formatted output */
-    virtual Writer &printf(char *fmt, ...) G_GNUC_PRINTF(2,3);
+    virtual Writer &printf(char const *fmt, ...) G_GNUC_PRINTF(2,3);
 
     virtual Writer& writeChar(char val);
 
@@ -579,7 +579,7 @@ Writer& operator<< (Writer &writer, Glib::ustring &val);
 
 Writer& operator<< (Writer &writer, std::string &val);
 
-Writer& operator<< (Writer &writer, char *val);
+Writer& operator<< (Writer &writer, char const *val);
 
 Writer& operator<< (Writer &writer, bool val);