diff --git a/headers/posix/string.h b/headers/posix/string.h
index dc13a9cb34..85ceb6d5b1 100644
--- a/headers/posix/string.h
+++ b/headers/posix/string.h
@@ -46,8 +46,10 @@ extern const char *strerror(int error);
 // ToDo: remove bzero(), bcopy() from here - we don't need those
 //	implementations anyway, since BeOS defines them as macros
 //	Of course, we could also just keep them (and bcmp() is missing)
-extern void  *bcopy(void const *source, void *dest, size_t length);
-extern void   bzero(void *buffer, size_t length);
+//extern void  *bcopy(void const *source, void *dest, size_t length);
+//extern void   bzero(void *buffer, size_t length);
+#define bcopy(source, dest, length) memcpy(dest, source, length)
+#define bzero(buffer, length) memset(buffer, 0, length)
 
 /* non-standard string functions */
 extern int		strcasecmp(const char *string1, const char *string2);
diff --git a/headers/posix/sys/types.h b/headers/posix/sys/types.h
index 92992b197f..9a1efbeff7 100644
--- a/headers/posix/sys/types.h
+++ b/headers/posix/sys/types.h
@@ -1,2 +1,3 @@
 // ToDo: fix me!
 #include <ktypes.h>
+#include <time.h>
diff --git a/headers/posix/time.h b/headers/posix/time.h
new file mode 100644
index 0000000000..486b4fa8d1
--- /dev/null
+++ b/headers/posix/time.h
@@ -0,0 +1,20 @@
+#ifndef _TIME_H_
+#define _TIME_H_
+
+typedef long clock_t;
+typedef long time_t;
+
+#define CLOCKS_PER_SEC	1000
+#define CLK_TCK			CLOCKS_PER_SEC
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// ToDo: add function prototypes...
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif	/* _TIME_H_ */