CMakeLists use the source_group command to improve look and feel when generating Visual Studio projects.

nOOb3167 · SmallJoker · commit 4118e150f884 · 2018-02-23T17:02:02.000+01:00
The TREE argument of source_group appears in CMake 3.8 therefore check for version.
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
@@ -530,6 +530,11 @@ set(server_SRCS
 )
 list(SORT server_SRCS)
 
+if ((CMAKE_VERSION VERSION_GREATER 3.8) OR (CMAKE_VERSION VERSION_EQUAL 3.8))
+	source_group(TREE ${PROJECT_SOURCE_DIR} PREFIX "Source Files" FILES ${client_SRCS})
+	source_group(TREE ${PROJECT_SOURCE_DIR} PREFIX "Source Files" FILES ${server_SRCS})
+endif()
+
 include_directories(
 	${PROJECT_BINARY_DIR}
 	${PROJECT_SOURCE_DIR}
