Update macOS xib file and compile as part of build process

indra/newview/CMakeLists.txt

@@ -1436,7 +1436,7 @@ if (DARWIN)
   set(viewer_RESOURCE_FILES
     secondlife.icns
     Info-SecondLife.plist
-    SecondLife.xib/
+    SecondLife.xib
     # CMake doesn't seem to support Xcode language variants well just yet
     English.lproj/InfoPlist.strings
     English.lproj/language.txt
@@ -1909,6 +1909,7 @@ if (WINDOWS)
 elseif (DARWIN)
     set_target_properties(${VIEWER_BINARY_NAME}
         PROPERTIES
+        RESOURCE SecondLife.xib
         LINK_FLAGS_RELEASE "${LINK_FLAGS_RELEASE} -Xlinker -dead_strip -Xlinker -map -Xlinker ${CMAKE_CURRENT_BINARY_DIR}/${VIEWER_BINARY_NAME}.MAP"
         )
 else (WINDOWS)

indra/newview/viewer_manifest.py

@@ -950,7 +950,6 @@ class Darwin_x86_64_Manifest(ViewerManifest):
                 self.path("licenses-mac.txt", dst="licenses.txt")
                 self.path("featuretable_mac.txt")
                 self.path("cube.dae")
-                self.path("SecondLife.nib")
 
                 with self.prefix(src=pkgdir,dst=""):
                     self.path("ca-bundle.crt")