diff --git a/src/xpdev/rwlockwrap.c b/src/xpdev/rwlockwrap.c
index cc90610d0fd34070446d1c5e65947b346bc98c74..5015c1a9703dc9f12d2d07306a18690982987ca5 100644
--- a/src/xpdev/rwlockwrap.c
+++ b/src/xpdev/rwlockwrap.c
@@ -1,6 +1,10 @@
 #include "rwlockwrap.h"
 
-#ifdef _WIN32
+#if defined(__BORLANDC__)
+
+// Do nothing...
+
+#elif defined(_WIN32)
 
 bool
 rwlock_init(rwlock_t *lock)
diff --git a/src/xpdev/rwlockwrap.h b/src/xpdev/rwlockwrap.h
index ceeb91eca3c29bacbff756da35b82bfb07c4bce1..9dbbb36174c8d5d6adf5951558fb39ea45c111c7 100644
--- a/src/xpdev/rwlockwrap.h
+++ b/src/xpdev/rwlockwrap.h
@@ -14,6 +14,10 @@ typedef pthread_rwlock_t rwlock_t;
 #define rwlock_trywrlock(lock) (pthread_rwlock_trywrlock(lock) == 0)
 #define rwlock_unlock(lock) (pthread_rwlock_unlock(lock) == 0)
 
+#elif defined(__BORLANDC__)
+
+// Not supported, but ignored...
+
 #elif defined(_WIN32)
 
 #include "gen_defs.h"	// For windows.h and bool :(