diff --git a/CMakeLists.txt b/CMakeLists.txt
index e39033656..e567b1de5 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -99,6 +99,10 @@ IF(UNIX)
 		ADD_DEFINITIONS(-DFREEBSD)
 		SET(FREEBSD TRUE)
 	ENDIF(CMAKE_SYSTEM_NAME MATCHES "FreeBSD")
+	IF(CMAKE_SYSTEM_NAME MATCHES "Darwin")
+		ADD_DEFINITIONS(-DDARWIN)
+		SET(DARWIN TRUE)
+	ENDIF(CMAKE_SYSTEM_NAME MATCHES "Darwin")
 ENDIF(UNIX)
 
 #use stdint.h types if they exist for this platform (we have to guess otherwise)
diff --git a/client_files/export/CMakeLists.txt b/client_files/export/CMakeLists.txt
index 191184013..851aa05fb 100644
--- a/client_files/export/CMakeLists.txt
+++ b/client_files/export/CMakeLists.txt
@@ -26,7 +26,9 @@ IF(UNIX)
 	TARGET_LINK_LIBRARIES(export_client_files "${CMAKE_DL_LIBS}")
 	TARGET_LINK_LIBRARIES(export_client_files "z")
 	TARGET_LINK_LIBRARIES(export_client_files "m")
-	TARGET_LINK_LIBRARIES(export_client_files "rt")
+	IF(NOT DARWIN)
+		TARGET_LINK_LIBRARIES(export_client_files "rt")
+	ENDIF(NOT DARWIN)
 	TARGET_LINK_LIBRARIES(export_client_files "pthread")
 	ADD_DEFINITIONS(-fPIC)
 ENDIF(UNIX)
diff --git a/client_files/import/CMakeLists.txt b/client_files/import/CMakeLists.txt
index 94875302d..0b6c45b57 100644
--- a/client_files/import/CMakeLists.txt
+++ b/client_files/import/CMakeLists.txt
@@ -26,7 +26,9 @@ IF(UNIX)
 	TARGET_LINK_LIBRARIES(import_client_files "${CMAKE_DL_LIBS}")
 	TARGET_LINK_LIBRARIES(import_client_files "z")
 	TARGET_LINK_LIBRARIES(import_client_files "m")
-	TARGET_LINK_LIBRARIES(import_client_files "rt")
+	IF(NOT DARWIN)
+		TARGET_LINK_LIBRARIES(import_client_files "rt")
+	ENDIF(NOT DARWIN)
 	TARGET_LINK_LIBRARIES(import_client_files "pthread")
 	ADD_DEFINITIONS(-fPIC)
 ENDIF(UNIX)
diff --git a/common/TCPConnection.cpp b/common/TCPConnection.cpp
index e576f953a..1e5f49600 100644
--- a/common/TCPConnection.cpp
+++ b/common/TCPConnection.cpp
@@ -30,6 +30,10 @@
 #ifdef FREEBSD //Timothy Whitman - January 7, 2003
 	#define MSG_NOSIGNAL 0
 #endif
+#ifdef DARWIN
+	#define MSG_NOSIGNAL SO_NOSIGPIPE // Corysia Taware - Sept. 27, 2013
+	// See http://lists.apple.com/archives/macnetworkprog/2002/Dec/msg00091.html
+#endif	// DARWIN
 
 #ifdef _WINDOWS
 InitWinsock winsock;
diff --git a/eqlaunch/CMakeLists.txt b/eqlaunch/CMakeLists.txt
index 0f0114c88..b636a18cf 100644
--- a/eqlaunch/CMakeLists.txt
+++ b/eqlaunch/CMakeLists.txt
@@ -30,7 +30,9 @@ IF(UNIX)
 	TARGET_LINK_LIBRARIES(eqlaunch "${CMAKE_DL_LIBS}")
 	TARGET_LINK_LIBRARIES(eqlaunch "z")
 	TARGET_LINK_LIBRARIES(eqlaunch "m")
-	TARGET_LINK_LIBRARIES(eqlaunch "rt")
+	IF(NOT DARWIN)
+		TARGET_LINK_LIBRARIES(eqlaunch "rt")
+	ENDIF(NOT DARWIN)
 	TARGET_LINK_LIBRARIES(eqlaunch "pthread")
 	ADD_DEFINITIONS(-fPIC)
 ENDIF(UNIX)
diff --git a/loginserver/CMakeLists.txt b/loginserver/CMakeLists.txt
index ba96b1f61..9ded859e5 100644
--- a/loginserver/CMakeLists.txt
+++ b/loginserver/CMakeLists.txt
@@ -58,7 +58,9 @@ IF(UNIX)
 	TARGET_LINK_LIBRARIES(loginserver "${CMAKE_DL_LIBS}")
 	TARGET_LINK_LIBRARIES(loginserver "z")
 	TARGET_LINK_LIBRARIES(loginserver "m")
-	TARGET_LINK_LIBRARIES(loginserver "rt")
+	IF(NOT DARWIN)
+		TARGET_LINK_LIBRARIES(loginserver "rt")
+	ENDIF(NOT DARWIN)
 	TARGET_LINK_LIBRARIES(loginserver "pthread")
 	TARGET_LINK_LIBRARIES(loginserver "EQEmuAuthCrypto")
 	TARGET_LINK_LIBRARIES(loginserver "cryptopp")
diff --git a/queryserv/CMakeLists.txt b/queryserv/CMakeLists.txt
index a8480ca94..33be865e0 100644
--- a/queryserv/CMakeLists.txt
+++ b/queryserv/CMakeLists.txt
@@ -36,7 +36,9 @@ IF(UNIX)
 	TARGET_LINK_LIBRARIES(queryserv "${CMAKE_DL_LIBS}")
 	TARGET_LINK_LIBRARIES(queryserv "z")
 	TARGET_LINK_LIBRARIES(queryserv "m")
-	TARGET_LINK_LIBRARIES(queryserv "rt")
+	IF(NOT DARWIN)
+		TARGET_LINK_LIBRARIES(queryserv "rt")
+	ENDIF(NOT DARWIN)
 	TARGET_LINK_LIBRARIES(queryserv "pthread")
 	ADD_DEFINITIONS(-fPIC)
 ENDIF(UNIX)
diff --git a/shared_memory/CMakeLists.txt b/shared_memory/CMakeLists.txt
index 863b5633f..3d23a1b01 100644
--- a/shared_memory/CMakeLists.txt
+++ b/shared_memory/CMakeLists.txt
@@ -38,7 +38,9 @@ IF(UNIX)
 	TARGET_LINK_LIBRARIES(shared_memory "${CMAKE_DL_LIBS}")
 	TARGET_LINK_LIBRARIES(shared_memory "z")
 	TARGET_LINK_LIBRARIES(shared_memory "m")
-	TARGET_LINK_LIBRARIES(shared_memory "rt")
+	IF(NOT DARWIN)
+		TARGET_LINK_LIBRARIES(shared_memory "rt")
+	ENDIF(NOT DARWIN)
 	TARGET_LINK_LIBRARIES(shared_memory "pthread")
 	ADD_DEFINITIONS(-fPIC)
 ENDIF(UNIX)
diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index 80f6a2f1d..aef5124c9 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -32,7 +32,9 @@ IF(UNIX)
 	TARGET_LINK_LIBRARIES(tests "${CMAKE_DL_LIBS}")
 	TARGET_LINK_LIBRARIES(tests "z")
 	TARGET_LINK_LIBRARIES(tests "m")
-	TARGET_LINK_LIBRARIES(tests "rt")
+        IF(NOT DARWIN)
+                TARGET_LINK_LIBRARIES(loginserver "rt")
+        ENDIF(NOT DARWIN)
 	TARGET_LINK_LIBRARIES(tests "pthread")
 	ADD_DEFINITIONS(-fPIC)
 ENDIF(UNIX)
diff --git a/ucs/CMakeLists.txt b/ucs/CMakeLists.txt
index 27a8a072d..44681831c 100644
--- a/ucs/CMakeLists.txt
+++ b/ucs/CMakeLists.txt
@@ -38,7 +38,9 @@ IF(UNIX)
 	TARGET_LINK_LIBRARIES(ucs "${CMAKE_DL_LIBS}")
 	TARGET_LINK_LIBRARIES(ucs "z")
 	TARGET_LINK_LIBRARIES(ucs "m")
-	TARGET_LINK_LIBRARIES(ucs "rt")
+	IF(NOT DARWIN)
+		TARGET_LINK_LIBRARIES(ucs "rt")
+	ENDIF(NOT DARWIN)
 	TARGET_LINK_LIBRARIES(ucs "pthread")
 	ADD_DEFINITIONS(-fPIC)
 ENDIF(UNIX)
diff --git a/world/CMakeLists.txt b/world/CMakeLists.txt
index 2decbf4c9..3ac008267 100644
--- a/world/CMakeLists.txt
+++ b/world/CMakeLists.txt
@@ -84,7 +84,9 @@ IF(UNIX)
 	TARGET_LINK_LIBRARIES(world "${CMAKE_DL_LIBS}")
 	TARGET_LINK_LIBRARIES(world "z")
 	TARGET_LINK_LIBRARIES(world "m")
-	TARGET_LINK_LIBRARIES(world "rt")
+	IF(NOT DARWIN)
+		TARGET_LINK_LIBRARIES(world "rt")
+	ENDIF(NOT DARWIN)
 	TARGET_LINK_LIBRARIES(world "pthread")
 	ADD_DEFINITIONS(-fPIC)
 ENDIF(UNIX)
diff --git a/world/net.cpp b/world/net.cpp
index 057367b00..8be3283f0 100644
--- a/world/net.cpp
+++ b/world/net.cpp
@@ -56,7 +56,7 @@
 	#include <sys/ipc.h>
 	#include <sys/sem.h>
 	#include <sys/shm.h>
-	#ifndef FREEBSD
+	#if not defined (FREEBSD) && not defined (DARWIN)
 		union semun {
 			int val;
 			struct semid_ds *buf;
diff --git a/zone/CMakeLists.txt b/zone/CMakeLists.txt
index 49410f0f2..e582e0c45 100644
--- a/zone/CMakeLists.txt
+++ b/zone/CMakeLists.txt
@@ -230,7 +230,9 @@ IF(UNIX)
 	TARGET_LINK_LIBRARIES(zone "${CMAKE_DL_LIBS}")
 	TARGET_LINK_LIBRARIES(zone "z")
 	TARGET_LINK_LIBRARIES(zone "m")
-	TARGET_LINK_LIBRARIES(zone "rt")
+	IF(NOT DARWIN)
+		TARGET_LINK_LIBRARIES(zone "rt")
+	ENDIF(NOT DARWIN)
 	TARGET_LINK_LIBRARIES(zone "pthread")
 	ADD_DEFINITIONS(-fPIC)
 ENDIF(UNIX)