diff --git a/src/regex/regcomp.c b/src/regex/regcomp.c
index 17557ddd14..19f4947f0f 100644
--- a/src/regex/regcomp.c
+++ b/src/regex/regcomp.c
@@ -1,4 +1,8 @@
+#ifdef __MWERKS__
+typedef long off_t ;
+#else
 #include <sys/types.h>
+#endif
 #include <stdio.h>
 #include <string.h>
 #include <ctype.h>
diff --git a/src/regex/regerror.c b/src/regex/regerror.c
index 1bb1ec1ce8..8be61f6041 100644
--- a/src/regex/regerror.c
+++ b/src/regex/regerror.c
@@ -1,4 +1,8 @@
+#ifdef __MWERKS__
+typedef long off_t ;
+#else
 #include <sys/types.h>
+#endif
 #include <stdio.h>
 #include <string.h>
 #include <ctype.h>
diff --git a/src/regex/regexec.c b/src/regex/regexec.c
index 7e314950e7..225c4d5ec7 100644
--- a/src/regex/regexec.c
+++ b/src/regex/regexec.c
@@ -5,7 +5,11 @@
  * macros that code uses.  This lets the same code operate on two different
  * representations for state sets.
  */
+#ifdef __MWERKS__
+typedef long off_t ;
+#else
 #include <sys/types.h>
+#endif
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
diff --git a/src/regex/regfree.c b/src/regex/regfree.c
index 9c1488ab23..857b2bfe26 100644
--- a/src/regex/regfree.c
+++ b/src/regex/regfree.c
@@ -1,4 +1,8 @@
+#ifdef __MWERKS__
+typedef long off_t ;
+#else
 #include <sys/types.h>
+#endif
 #include <stdio.h>
 #include <stdlib.h>
 #include "regex.h"