chore: small CMakeLists.txt comment fix

Signed-off-by: DhanashreePetare <[email protected]>

Author: DhanashreePetare

CMakeLists.txt

@@ -357,6 +357,7 @@ message(STATUS "  Modify using: -DENABLE_TESTING=ON/OFF")
 ########################################################################
 option(ENABLE_PROFILING "Launch system profiler after build" OFF)
 if(ENABLE_PROFILING)
+    option(ENABLE_XDG_CONFIG "Prefer XDG_CONFIG_HOME for config paths when enabled" OFF)
     if(DEFINED VOLK_CONFIGPATH)
         get_filename_component(VOLK_CONFIGPATH ${VOLK_CONFIGPATH} ABSOLUTE)
         set(VOLK_CONFIGPATH "${VOLK_CONFIGPATH}/volk")
@@ -367,13 +368,22 @@ if(ENABLE_PROFILING)
             STATUS "System profiling is enabled, using env path: $ENV{VOLK_CONFIGPATH}")
     else()
         message(STATUS "System profiling is enabled with default paths.")
-        if(DEFINED ENV{XDG_CONFIG_HOME})
-            set(VOLK_CONFIGPATH "$ENV{XDG_CONFIG_HOME}/volk")
-        elseif(DEFINED ENV{HOME})
-            set(VOLK_CONFIGPATH "$ENV{HOME}/.config/volk")
-        elseif(DEFINED ENV{APPDATA})
-            # Windows fallback
-            set(VOLK_CONFIGPATH "$ENV{APPDATA}/.volk")
+        if(ENABLE_XDG_CONFIG)
+            if(DEFINED ENV{XDG_CONFIG_HOME})
+                set(VOLK_CONFIGPATH "$ENV{XDG_CONFIG_HOME}/volk")
+            elseif(DEFINED ENV{HOME})
+                set(VOLK_CONFIGPATH "$ENV{HOME}/.config/volk")
+            elseif(DEFINED ENV{APPDATA})
+                # Windows APPDATA fallback
+                set(VOLK_CONFIGPATH "$ENV{APPDATA}/.volk")
+            endif()
+        else()
+            # Preserve previous behavior: prefer HOME/.volk (legacy) then APPDATA
+            if(DEFINED ENV{HOME})
+                set(VOLK_CONFIGPATH "$ENV{HOME}/.volk")
+            elseif(DEFINED ENV{APPDATA})
+                set(VOLK_CONFIGPATH "$ENV{APPDATA}/.volk")
+            endif()
         endif()
     endif()
 else()