3 files changed, 28 insertions, 0 deletions
diff --git a/src/os/macosx/macos.h b/src/os/macosx/macos.h
index 1e6729f12..4204d93bb 100644
--- a/src/os/macosx/macos.h
+++ b/src/os/macosx/macos.h
@@ -38,4 +38,6 @@ static inline bool MacOSVersionIsAtLeast(long major, long minor, long bugfix)
 
 bool IsMonospaceFont(CFStringRef name);
 
+void MacOSSetThreadName(const char *name);
+
 #endif /* MACOS_H */
diff --git a/src/os/macosx/macos.mm b/src/os/macosx/macos.mm
index 1d388d393..7fb71fe9e 100644
--- a/src/os/macosx/macos.mm
+++ b/src/os/macosx/macos.mm
@@ -14,6 +14,7 @@
 #include "../../rev.h"
 #include "macos.h"
 #include "../../string_func.h"
+#include <pthread.h>
 
 #define Rect  OTTDRect
 #define Point OTTDPoint
@@ -233,3 +234,21 @@ bool IsMonospaceFont(CFStringRef name)
 
 	return font != NULL ? [ font isFixedPitch ] : false;
 }
+
+/**
+ * Set the name of the current thread for the debugger.
+ * @param name The new name of the current thread.
+ */
+void MacOSSetThreadName(const char *name)
+{
+#if (MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_6)
+	if (MacOSVersionIsAtLeast(10, 6, 0)) {
+		pthread_setname_np(name);
+	}
+#endif
+
+	NSThread *cur = [ NSThread currentThread ];
+	if (cur != NULL && [ cur respondsToSelector:@selector(setName:) ]) {
+		[ cur performSelector:@selector(setName:) withObject:[ NSString stringWithUTF8String:name ] ];
+	}
+}
diff --git a/src/thread/thread_pthread.cpp b/src/thread/thread_pthread.cpp
index 747b8943d..8aed5ee13 100644
--- a/src/thread/thread_pthread.cpp
+++ b/src/thread/thread_pthread.cpp
@@ -14,6 +14,10 @@
 #include <pthread.h>
 #include <errno.h>
 
+#if defined(__APPLE__)
+#include "../os/macosx/macos.h"
+#endif
+
 #include "../safeguards.h"
 
 /**
@@ -70,6 +74,9 @@ private:
 		}
 #endif
 #endif
+#if defined(__APPLE__)
+		MacOSSetThreadName(self->name);
+#endif
 		self->ThreadProc();
 		pthread_exit(NULL);
 	}