2 files changed, 11 insertions, 0 deletions

diff --git a/keyboards/lets_split/sockets/config.h b/keyboards/lets_split/sockets/config.h
index 6939d37dc..e73c45722 100644
--- a/keyboards/lets_split/sockets/config.h
+++ b/keyboards/lets_split/sockets/config.h
@@ -85,3 +85,12 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 //#define NO_ACTION_ONESHOT
 //#define NO_ACTION_MACRO
 //#define NO_ACTION_FUNCTION
+
+#ifdef USE_Link_Time_Optimization
+  // LTO has issues with macros (action_get_macro) and "functions" (fn_actions),
+  //  so just disable them
+  #define NO_ACTION_MACRO
+  #define NO_ACTION_FUNCTION
+
+  #define DISABLE_LEADER
+#endif // USE_Link_Time_Optimization
\ No newline at end of file
diff --git a/keyboards/lets_split/sockets/rules.mk b/keyboards/lets_split/sockets/rules.mk
index e14d18d8d..da04decf4 100644
--- a/keyboards/lets_split/sockets/rules.mk
+++ b/keyboards/lets_split/sockets/rules.mk
@@ -1,3 +1,5 @@
 BACKLIGHT_ENABLE = no
 AUDIO_ENABLE = yes
 RGBLIGHT_ENABLE = yes #Don't enable this along with I2C
+
+EXTRAFLAGS += -flto -DUSE_Link_Time_Optimization