diff --git a/libcpp/ChangeLog b/libcpp/ChangeLog
index 1a8fccf5ce11..c1d3c63ea997 100644
--- a/libcpp/ChangeLog
+++ b/libcpp/ChangeLog
@@ -1,3 +1,7 @@
+2005-04-27  Andris Pavenis  <pavenis@latnet.lv>
+
+	* files.c: Include io.h for DJGPP to get prototype of setmode.
+
 2005-04-19  Per Bothner  <per@bothner.com>
 
 	PR preprocessor/20907
diff --git a/libcpp/files.c b/libcpp/files.c
index 593e5ebf0c80..c0ce6d452272 100644
--- a/libcpp/files.c
+++ b/libcpp/files.c
@@ -40,6 +40,7 @@ Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
 #endif
 
 #ifdef __DJGPP__
+#include <io.h>
   /* For DJGPP redirected input is opened in text mode.  */
 #  define set_stdin_to_binary_mode() \
      if (! isatty (0)) setmode (0, O_BINARY)