diff --git a/src/tiff/tiffcomp.h b/src/tiff/tiffcomp.h
index fbe1c0ebb1..bb5fb8c7e3 100644
--- a/src/tiff/tiffcomp.h
+++ b/src/tiff/tiffcomp.h
@@ -85,6 +85,8 @@
 #define	HAVE_UNISTD_H	0
 #elif defined(_WINDOWS) || defined(__WIN32__) || defined(_Windows)
 #define BSDTYPES
+#elif defined(__DJGPP__)
+#define BSDTYPES
 #elif defined(OS2_16) || defined(OS2_32)
 #define	BSDTYPES
 #elif defined(__acornriscos)
diff --git a/src/tiff/tiffiop.h b/src/tiff/tiffiop.h
index 91264785f3..2697807129 100644
--- a/src/tiff/tiffiop.h
+++ b/src/tiff/tiffiop.h
@@ -34,7 +34,7 @@
  * a port.h file that reflects the system capabilities.
  * Doing this obviates all the dreck done in tiffcomp.h.
  */
-#if defined(unix) || defined(__unix)
+#if (defined(unix) || defined(__unix)) && !defined(__DJGPP__)
 #include "port.h"
 #include "tiffconf.h"
 #else