diff --git a/code/CMakeModules/nel.cmake b/code/CMakeModules/nel.cmake
index bb19183b8..c51752c72 100644
--- a/code/CMakeModules/nel.cmake
+++ b/code/CMakeModules/nel.cmake
@@ -218,6 +218,11 @@ MACRO(NL_SETUP_DEFAULT_OPTIONS)
     OPTION(WITH_EXTERNAL          "With provided external."                       OFF)
   ENDIF(WIN32)
   OPTION(WITH_STATIC_EXTERNAL     "With static external libraries"                OFF)
+  IF(UNIX AND NOT APPLE)
+    OPTION(WITH_UNIX_STRUCTURE    "Use UNIX structure (bin, include, lib)"        ON )
+  ELSE()
+    OPTION(WITH_UNIX_STRUCTURE    "Use UNIX structure (bin, include, lib)"        OFF)
+  ENDIF()
   OPTION(WITH_INSTALL_LIBRARIES   "Install development files."                    ON )
 
   OPTION(WITH_ASSIMP              "Use assimp exporter"                           OFF)
@@ -315,7 +320,6 @@ MACRO(NL_SETUP_RYZOM_DEFAULT_OPTIONS)
   OPTION(WITH_RYZOM_TOOLS         "Build Ryzom Core Tools"                        ON )
   OPTION(WITH_RYZOM_SERVER        "Build Ryzom Core Services"                     ON )
   OPTION(WITH_RYZOM_SOUND         "Enable Ryzom Core Sound"                       ON )
-  OPTION(WITH_RYZOM_PATCH         "Enable Ryzom in-game patch support"            OFF)
 
   ###
   # Optional support
@@ -324,6 +328,8 @@ MACRO(NL_SETUP_RYZOM_DEFAULT_OPTIONS)
   OPTION(WITH_LUA52               "Build Ryzom Core using Lua 5.2"                OFF)
   OPTION(WITH_LUA53               "Build Ryzom Core using Lua 5.3"                OFF)
   OPTION(WITH_RYZOM_CLIENT_UAC    "Ask to run as Administrator"                   OFF)
+  OPTION(WITH_RYZOM_PATCH         "Enable Ryzom in-game patch support"            OFF)
+  OPTION(WITH_RYZOM_CUSTOM_PATCH_SERVER "Only use patch server from CFG file"     OFF)
 ENDMACRO(NL_SETUP_RYZOM_DEFAULT_OPTIONS)
 
 MACRO(NL_SETUP_SNOWBALLS_DEFAULT_OPTIONS)
@@ -908,121 +914,120 @@ ENDMACRO(NL_SETUP_BUILD_FLAGS)
 MACRO(NL_MAKE_ABSOLUTE_PREFIX NAME_RELATIVE NAME_ABSOLUTE)
   IF(IS_ABSOLUTE "${${NAME_RELATIVE}}")
     SET(${NAME_ABSOLUTE} ${${NAME_RELATIVE}})
-  ELSE(IS_ABSOLUTE "${${NAME_RELATIVE}}")
-    IF(WIN32)
-      SET(${NAME_ABSOLUTE} ${${NAME_RELATIVE}})
-    ELSE(WIN32)
+  ELSE()
+    IF(WITH_UNIX_STRUCTURE)
       SET(${NAME_ABSOLUTE} ${CMAKE_INSTALL_PREFIX}/${${NAME_RELATIVE}})
-    ENDIF(WIN32)
+    ELSE()
+      SET(${NAME_ABSOLUTE} ${${NAME_RELATIVE}})
+    ENDIF()
   ENDIF(IS_ABSOLUTE "${${NAME_RELATIVE}}")
 ENDMACRO(NL_MAKE_ABSOLUTE_PREFIX)
 
 MACRO(NL_SETUP_PREFIX_PATHS)
   ## Allow override of install_prefix/etc path.
   IF(NOT NL_ETC_PREFIX)
-    IF(WIN32)
-      SET(NL_ETC_PREFIX "." CACHE PATH "Installation path for configurations")
-    ELSE(WIN32)
+    IF(WITH_UNIX_STRUCTURE)
       SET(NL_ETC_PREFIX "etc/nel" CACHE PATH "Installation path for configurations")
-    ENDIF(WIN32)
-  ENDIF(NOT NL_ETC_PREFIX)
+    ELSE()
+      SET(NL_ETC_PREFIX "." CACHE PATH "Installation path for configurations")
+    ENDIF()
+  ENDIF()
   NL_MAKE_ABSOLUTE_PREFIX(NL_ETC_PREFIX NL_ETC_ABSOLUTE_PREFIX)
 
   ## Allow override of install_prefix/share path.
   IF(NOT NL_SHARE_PREFIX)
-    IF(WIN32)
-      SET(NL_SHARE_PREFIX "." CACHE PATH "Installation path for data.")
-    ELSE(WIN32)
+    IF(WITH_UNIX_STRUCTURE)
       SET(NL_SHARE_PREFIX "share/nel" CACHE PATH "Installation path for data.")
-    ENDIF(WIN32)
-  ENDIF(NOT NL_SHARE_PREFIX)
+    ELSE()
+      SET(NL_SHARE_PREFIX "." CACHE PATH "Installation path for data.")
+    ENDIF()
+  ENDIF()
   NL_MAKE_ABSOLUTE_PREFIX(NL_SHARE_PREFIX NL_SHARE_ABSOLUTE_PREFIX)
 
   ## Allow override of install_prefix/sbin path.
   IF(NOT NL_SBIN_PREFIX)
-    IF(WIN32)
-      SET(NL_SBIN_PREFIX "." CACHE PATH "Installation path for admin tools and services.")
-    ELSE(WIN32)
+    IF(WITH_UNIX_STRUCTURE)
       SET(NL_SBIN_PREFIX "sbin" CACHE PATH "Installation path for admin tools and services.")
-    ENDIF(WIN32)
-  ENDIF(NOT NL_SBIN_PREFIX)
+    ELSE()
+      SET(NL_SBIN_PREFIX "." CACHE PATH "Installation path for admin tools and services.")
+    ENDIF()
+  ENDIF()
   NL_MAKE_ABSOLUTE_PREFIX(NL_SBIN_PREFIX NL_SBIN_ABSOLUTE_PREFIX)
 
   ## Allow override of install_prefix/bin path.
   IF(NOT NL_BIN_PREFIX)
-    IF(WIN32)
-      SET(NL_BIN_PREFIX "." CACHE PATH "Installation path for tools and applications.")
-    ELSE(WIN32)
+    IF(WITH_UNIX_STRUCTURE)
       SET(NL_BIN_PREFIX "bin" CACHE PATH "Installation path for tools and applications.")
-    ENDIF(WIN32)
-  ENDIF(NOT NL_BIN_PREFIX)
+    ELSE()
+      SET(NL_BIN_PREFIX "." CACHE PATH "Installation path for tools and applications.")
+    ENDIF()
+  ENDIF()
   NL_MAKE_ABSOLUTE_PREFIX(NL_BIN_PREFIX NL_BIN_ABSOLUTE_PREFIX)
 
   ## Allow override of install_prefix/lib path.
   IF(NOT NL_LIB_PREFIX)
     IF(LIBRARY_ARCHITECTURE)
       SET(NL_LIB_PREFIX "lib/${LIBRARY_ARCHITECTURE}" CACHE PATH "Installation path for libraries.")
-    ELSE(LIBRARY_ARCHITECTURE)
+    ELSE()
       SET(NL_LIB_PREFIX "lib" CACHE PATH "Installation path for libraries.")
-    ENDIF(LIBRARY_ARCHITECTURE)
-  ENDIF(NOT NL_LIB_PREFIX)
+    ENDIF()
+  ENDIF()
   NL_MAKE_ABSOLUTE_PREFIX(NL_LIB_PREFIX NL_LIB_ABSOLUTE_PREFIX)
 
   ## Allow override of install_prefix/lib path.
   IF(NOT NL_DRIVER_PREFIX)
-    IF(WIN32)
-      SET(NL_DRIVER_PREFIX "." CACHE PATH "Installation path for drivers.")
-    ELSE(WIN32)
+    IF(WITH_UNIX_STRUCTURE)
       IF(LIBRARY_ARCHITECTURE)
         SET(NL_DRIVER_PREFIX "lib/${LIBRARY_ARCHITECTURE}/nel" CACHE PATH "Installation path for drivers.")
-      ELSE(LIBRARY_ARCHITECTURE)
+      ELSE()
         SET(NL_DRIVER_PREFIX "lib/nel" CACHE PATH "Installation path for drivers.")
-      ENDIF(LIBRARY_ARCHITECTURE)
-    ENDIF(WIN32)
-  ENDIF(NOT NL_DRIVER_PREFIX)
+      ENDIF()
+    ELSE()
+      SET(NL_DRIVER_PREFIX "." CACHE PATH "Installation path for drivers.")
+    ENDIF()
+  ENDIF()
   NL_MAKE_ABSOLUTE_PREFIX(NL_DRIVER_PREFIX NL_DRIVER_ABSOLUTE_PREFIX)
-
 ENDMACRO(NL_SETUP_PREFIX_PATHS)
 
 MACRO(RYZOM_SETUP_PREFIX_PATHS)
   ## Allow override of install_prefix/etc path.
   IF(NOT RYZOM_ETC_PREFIX)
-    IF(WIN32)
-      SET(RYZOM_ETC_PREFIX "." CACHE PATH "Installation path for configurations")
-    ELSE(WIN32)
+    IF(WITH_UNIX_STRUCTURE)
       SET(RYZOM_ETC_PREFIX "etc/ryzom" CACHE PATH "Installation path for configurations")
-    ENDIF(WIN32)
+    ELSE()
+      SET(RYZOM_ETC_PREFIX "." CACHE PATH "Installation path for configurations")
+    ENDIF()
   ENDIF(NOT RYZOM_ETC_PREFIX)
   NL_MAKE_ABSOLUTE_PREFIX(RYZOM_ETC_PREFIX RYZOM_ETC_ABSOLUTE_PREFIX)
 
   ## Allow override of install_prefix/share path.
   IF(NOT RYZOM_SHARE_PREFIX)
-    IF(WIN32)
-      SET(RYZOM_SHARE_PREFIX "." CACHE PATH "Installation path for data.")
-    ELSE(WIN32)
+    IF(WITH_UNIX_STRUCTURE)
       SET(RYZOM_SHARE_PREFIX "share/ryzom" CACHE PATH "Installation path for data.")
-    ENDIF(WIN32)
-  ENDIF(NOT RYZOM_SHARE_PREFIX)
+    ELSE()
+      SET(RYZOM_SHARE_PREFIX "." CACHE PATH "Installation path for data.")
+    ENDIF()
+  ENDIF()
   NL_MAKE_ABSOLUTE_PREFIX(RYZOM_SHARE_PREFIX RYZOM_SHARE_ABSOLUTE_PREFIX)
 
   ## Allow override of install_prefix/sbin path.
   IF(NOT RYZOM_SBIN_PREFIX)
-    IF(WIN32)
-      SET(RYZOM_SBIN_PREFIX "." CACHE PATH "Installation path for admin tools and services.")
-    ELSE(WIN32)
+    IF(WITH_UNIX_STRUCTURE)
       SET(RYZOM_SBIN_PREFIX "sbin" CACHE PATH "Installation path for admin tools and services.")
-    ENDIF(WIN32)
-  ENDIF(NOT RYZOM_SBIN_PREFIX)
+    ELSE()
+      SET(RYZOM_SBIN_PREFIX "." CACHE PATH "Installation path for admin tools and services.")
+    ENDIF()
+  ENDIF()
   NL_MAKE_ABSOLUTE_PREFIX(RYZOM_SBIN_PREFIX RYZOM_SBIN_ABSOLUTE_PREFIX)
 
   ## Allow override of install_prefix/bin path.
   IF(NOT RYZOM_BIN_PREFIX)
-    IF(WIN32)
-      SET(RYZOM_BIN_PREFIX "." CACHE PATH "Installation path for tools and applications.")
-    ELSE(WIN32)
+    IF(WITH_UNIX_STRUCTURE)
       SET(RYZOM_BIN_PREFIX "bin" CACHE PATH "Installation path for tools.")
-    ENDIF(WIN32)
-  ENDIF(NOT RYZOM_BIN_PREFIX)
+    ELSE()
+      SET(RYZOM_BIN_PREFIX "." CACHE PATH "Installation path for tools and applications.")
+    ENDIF()
+  ENDIF()
   NL_MAKE_ABSOLUTE_PREFIX(RYZOM_BIN_PREFIX RYZOM_BIN_ABSOLUTE_PREFIX)
 
   ## Allow override of install_prefix/lib path.
diff --git a/code/ryzom/client/client_default.cfg b/code/ryzom/client/client_default.cfg
index 3f6f7e182..4b0e70e76 100644
--- a/code/ryzom/client/client_default.cfg
+++ b/code/ryzom/client/client_default.cfg
@@ -417,18 +417,18 @@ LoadingStringCount = 54;
 
 // Some R2 parameters ...
 
-R2Mode 		     = 1;
+R2Mode               = 1;
 R2EDEnabled          = 1;
 R2EDExtendedDebug	 = 0;
 R2EDLightPalette	 = 0;
 R2ClientGw           = "r2linux01";
-LoadLuaDebugger = 0;
-CheckR2ScenarioMD5 = 1;
-LevelDesignEnabled     = 0;
+LoadLuaDebugger      = 0;
+CheckR2ScenarioMD5   = 1;
+LevelDesignEnabled   = 0;
 
-DmCameraDistMax        = 25;
-DmRun                  = 20;
-DmWalk                 = 6;
+DmCameraDistMax      = 25;
+DmRun                = 20;
+DmWalk               = 6;
 
 R2EDReloadFiles      = {
 	"r2ed.xml",
diff --git a/code/ryzom/client/src/CMakeLists.txt b/code/ryzom/client/src/CMakeLists.txt
index d5b37d048..7707e0d0e 100644
--- a/code/ryzom/client/src/CMakeLists.txt
+++ b/code/ryzom/client/src/CMakeLists.txt
@@ -10,6 +10,10 @@ ADD_SUBDIRECTORY(seven_zip)
 
 IF(WITH_RYZOM_PATCH)
   ADD_DEFINITIONS(-DRZ_USE_PATCH)
+
+  IF(WITH_RYZOM_CUSTOM_PATCH_SERVER)
+    ADD_DEFINITIONS(-DRZ_USE_CUSTOM_PATCH_SERVER)
+  ENDIF()
 ENDIF()
 
 FILE(GLOB CFG ../*.cfg)
@@ -98,8 +102,6 @@ IF(APPLE)
       ADD_CUSTOM_COMMAND(TARGET ryzom_client POST_BUILD COMMAND CODESIGN_ALLOCATE=${CODESIGN_ALLOCATE} codesign -fs "${APPLE_CERTIFICATE}" "${RYZOM_OUTPUT_DIR}" COMMENT "Signing bundle...")
     ENDIF()
   ENDIF()
-
-  ADD_CUSTOM_COMMAND(TARGET ryzom_client POST_BUILD COMMAND cp ARGS -p ${MAC_RESOURCES_DIR}/installscript_osx.vdf ${RYZOM_OUTPUT_DIR})
 ENDIF()
 
 INCLUDE_DIRECTORIES(
diff --git a/code/ryzom/client/src/client_cfg.cpp b/code/ryzom/client/src/client_cfg.cpp
index c94cf4a72..f7fc56b5e 100644
--- a/code/ryzom/client/src/client_cfg.cpp
+++ b/code/ryzom/client/src/client_cfg.cpp
@@ -416,7 +416,6 @@ CClientConfig::CClientConfig()
 	PatchUrl.clear();
 	PatchletUrl.clear();
 	PatchVersion.clear();
-	PatchServer.clear();
 
 	WebIgMainDomain = "atys.ryzom.com";
 	WebIgTrustedDomains.push_back(WebIgMainDomain);
@@ -1039,12 +1038,19 @@ void CClientConfig::setValues()
 
 	/////////////////////////
 	// NEW PATCHING SYSTEM //
-	READ_BOOL_FV(PatchWanted)
+	READ_BOOL_DEV(PatchWanted)
+
+#ifdef RZ_USE_CUSTOM_PATCH_SERVER
+	READ_STRING_FV(PatchUrl)
+	READ_STRING_FV(PatchVersion)
+	READ_STRING_FV(RingReleaseNotePath)
+	READ_STRING_FV(ReleaseNotePath)
+#else
 	READ_STRING_DEV(PatchUrl)
 	READ_STRING_DEV(PatchVersion)
 	READ_STRING_DEV(RingReleaseNotePath)
 	READ_STRING_DEV(ReleaseNotePath)
-	READ_STRING_FV(PatchServer)
+#endif
 
 	/////////////////////////
 	// NEW PATCHLET SYSTEM //
diff --git a/code/ryzom/client/src/client_cfg.h b/code/ryzom/client/src/client_cfg.h
index 8f96b4244..5b9c9099e 100644
--- a/code/ryzom/client/src/client_cfg.h
+++ b/code/ryzom/client/src/client_cfg.h
@@ -296,7 +296,6 @@ struct CClientConfig
 	std::string		PatchUrl;
 	std::string		PatchletUrl;
 	std::string		PatchVersion;
-	std::string		PatchServer;
 
 	std::string		RingReleaseNotePath;
 	std::string		ReleaseNotePath;
diff --git a/code/ryzom/client/src/login.cpp b/code/ryzom/client/src/login.cpp
index 4830ae8d5..5065dcf4d 100644
--- a/code/ryzom/client/src/login.cpp
+++ b/code/ryzom/client/src/login.cpp
@@ -992,9 +992,16 @@ static void getPatchParameters(std::string &url, std::string &ver, std::vector<s
 {
 	if (ClientCfg.R2Mode)
 	{
-		patchURIs = R2PatchURLs;
-		url = R2BackupPatchURL;
-		ver = R2ServerVersion;
+		url = ClientCfg.PatchUrl;
+		ver = ClientCfg.PatchVersion;
+
+		// if PatchUrl is forced, don't use URLs returned by server
+		if (url.empty())
+		{
+			patchURIs = R2PatchURLs;
+			url = R2BackupPatchURL;
+			ver = R2ServerVersion;
+		}
 	}
 	else
 	{
diff --git a/code/ryzom/client/src/login_patch.cpp b/code/ryzom/client/src/login_patch.cpp
index 9c0cbb9fd..d9dfa487e 100644
--- a/code/ryzom/client/src/login_patch.cpp
+++ b/code/ryzom/client/src/login_patch.cpp
@@ -237,7 +237,7 @@ void CPatchManager::setClientRootPath(const std::string& clientRootPath)
 {
 	ClientRootPath = CPath::standardizePath(clientRootPath);
 	ClientPatchPath = CPath::standardizePath(ClientRootPath + "unpack");
-	
+
 	WritableClientDataPath = CPath::standardizePath(ClientRootPath + "data");
 
 #ifdef NL_OS_MAC
@@ -275,6 +275,7 @@ void CPatchManager::init(const std::vector<std::string>& patchURIs, const std::s
 {
 	uint	i;
 	PatchServers.clear();
+
 	for (i=0; i<patchURIs.size(); ++i)
 	{
 		PatchServers.push_back(CPatchServer(patchURIs[i]));
@@ -895,7 +896,7 @@ void CPatchManager::createBatchFile(CProductDescriptionForClient &descFile, bool
 			fprintf(fp, ":looppatch\n");
 		}
 #endif
-		
+
 		vector<string> vFileList;
 		CPath::getPathContent ("patch", false, false, true, vFileList, NULL, false);
 
@@ -2736,7 +2737,7 @@ void CPatchThread::run()
 		for (i = 0; i < AllFilesToPatch.size(); ++i)
 		{
 			CPatchManager::SFileToPatch &rFTP = AllFilesToPatch[i];
-			
+
 			string ext = NLMISC::CFile::getExtension(rFTP.FileName);
 			if (ext == "bnp")
 			{
diff --git a/code/ryzom/tools/client/client_patcher/main.cpp b/code/ryzom/tools/client/client_patcher/main.cpp
index cbd3ddc0b..1ee6c8c5e 100644
--- a/code/ryzom/tools/client/client_patcher/main.cpp
+++ b/code/ryzom/tools/client/client_patcher/main.cpp
@@ -202,10 +202,10 @@ int main(int argc, char *argv[])
 	// load client.cfg or client_default.cfg
 	ClientCfg.init(config);
 
-	// check if PatchServer is defined
-	if (ClientCfg.PatchServer.empty())
+	// check if PatchUrl is defined
+	if (ClientCfg.PatchUrl.empty())
 	{
-		printError("PatchServer not defined in " + config);
+		printError("PatchUrl not defined in " + config);
 		return 1;
 	}
 
@@ -273,9 +273,9 @@ int main(int argc, char *argv[])
 	// set the correct root path
 	pPM->setClientRootPath(rootPath);
 
-	// use PatchServer URL
+	// use PatchUrl
 	vector<string> patchURLs;
-	pPM->init(patchURLs, ClientCfg.PatchServer, ClientCfg.PatchVersion);
+	pPM->init(patchURLs, ClientCfg.PatchUrl, ClientCfg.PatchVersion);
 	pPM->startCheckThread(true /* include background patchs */);
 
 	ucstring state;