Better handle LTO_ENABLE (#9832)

* Better handle LTO_ENABLE

Especially when calling from command line

* Replace LINK_TIME_OPTIMIZATION_ENABLE with LTO_ENABLE

* Remove long for LTO from show_options.mk

66 files changed, 69 insertions, 74 deletions

diff --git a/keyboards/1upkeyboards/sweet16/v1/rules.mk b/keyboards/1upkeyboards/sweet16/v1/rules.mk
index 09bd9e9e25..4c4280cdd4 100644
--- a/keyboards/1upkeyboards/sweet16/v1/rules.mk
+++ b/keyboards/1upkeyboards/sweet16/v1/rules.mk
@@ -14,4 +14,4 @@ BOOTLOADER = caterina
 RGBLIGHT_ENABLE = yes
 BACKLIGHT_ENABLE = no # Enable keyboard backlight functionality
 
-LINK_TIME_OPTIMIZATION_ENABLE = yes
+LTO_ENABLE = yes
diff --git a/keyboards/1upkeyboards/sweet16/v2/promicro/rules.mk b/keyboards/1upkeyboards/sweet16/v2/promicro/rules.mk
index 9f38504a8c..16510f7674 100644
--- a/keyboards/1upkeyboards/sweet16/v2/promicro/rules.mk
+++ b/keyboards/1upkeyboards/sweet16/v2/promicro/rules.mk
@@ -18,4 +18,4 @@ CONSOLE_ENABLE = yes
 RGBLIGHT_ENABLE = no
 ENCODER_ENABLE = yes
 
-LINK_TIME_OPTIMIZATION_ENABLE = yes
+LTO_ENABLE = yes
diff --git a/keyboards/bm60rgb/rules.mk b/keyboards/bm60rgb/rules.mk
index 72bfd539da..d888399cfc 100644
--- a/keyboards/bm60rgb/rules.mk
+++ b/keyboards/bm60rgb/rules.mk
@@ -31,7 +31,7 @@ BLUETOOTH_ENABLE = no        # Enable Bluetooth with the Adafruit EZ-Key HID
 AUDIO_ENABLE = no            # Audio output on port C6
 FAUXCLICKY_ENABLE = no       # Use buzzer to emulate clicky switches
 RGB_MATRIX_ENABLE = WS2812
-LINK_TIME_OPTIMIZATION_ENABLE = yes
+LTO_ENABLE = yes
 
 # partially generated by KBFirmware JSON to QMK Parser
 # https://noroadsleft.github.io/kbf_qmk_converter/
diff --git a/keyboards/clueboard/66/keymaps/via/rules.mk b/keyboards/clueboard/66/keymaps/via/rules.mk
index e85bff468f..7a49719505 100644
--- a/keyboards/clueboard/66/keymaps/via/rules.mk
+++ b/keyboards/clueboard/66/keymaps/via/rules.mk
@@ -1,4 +1,4 @@
 # rules.mk overrides to enable VIA
 
 VIA_ENABLE = yes
-LINK_TIME_OPTIMIZATION_ENABLE = yes
\ No newline at end of file
+LTO_ENABLE = yes
diff --git a/keyboards/clueboard/card/rules.mk b/keyboards/clueboard/card/rules.mk
index 37d1d866ef..a1b003f29c 100644
--- a/keyboards/clueboard/card/rules.mk
+++ b/keyboards/clueboard/card/rules.mk
@@ -26,4 +26,4 @@ UNICODE_ENABLE = no        # Unicode
 BLUETOOTH_ENABLE = no      # Enable Bluetooth with the Adafruit EZ-Key HID
 AUDIO_ENABLE = yes         # Audio output on port C6
 
-LINK_TIME_OPTIMIZATION_ENABLE = yes
+LTO_ENABLE = yes
diff --git a/keyboards/converter/usb_usb/keymaps/chriskopher/rules.mk b/keyboards/converter/usb_usb/keymaps/chriskopher/rules.mk
index d80022853b..643e1d013b 100644
--- a/keyboards/converter/usb_usb/keymaps/chriskopher/rules.mk
+++ b/keyboards/converter/usb_usb/keymaps/chriskopher/rules.mk
@@ -19,6 +19,6 @@ EXTRAKEY_ENABLE = yes # Used for audio control and system control keys
 COMBO_ENABLE = yes # Used to allow chording of keys to trigger an action
 TAP_DANCE_ENABLE = yes # Used to allow multiple taps of a key to perform different actions
 
-LINK_TIME_OPTIMIZATION_ENABLE = yes # Reduces the compiled firmware size
+LTO_ENABLE = yes # Reduces the compiled firmware size
 
 SRC += combo.c tap_dance.c
diff --git a/keyboards/crkbd/keymaps/ninjonas/rules.mk b/keyboards/crkbd/keymaps/ninjonas/rules.mk
index 95cc3fed36..0c7fb3afcb 100644
--- a/keyboards/crkbd/keymaps/ninjonas/rules.mk
+++ b/keyboards/crkbd/keymaps/ninjonas/rules.mk
@@ -1,7 +1,7 @@
 RGB_MATRIX_ENABLE = WS2812
 MOUSEKEY_ENABLE = no
 OLED_DRIVER_ENABLE = yes
-LINK_TIME_OPTIMIZATION_ENABLE = yes
+LTO_ENABLE = yes
 
 # Do not enable SLEEP_LED_ENABLE. it uses the same timer as BACKLIGHT_ENABLE
 SLEEP_LED_ENABLE = no    # Breathing sleep LED during USB suspend
diff --git a/keyboards/crkbd/keymaps/rpbaptist/rules.mk b/keyboards/crkbd/keymaps/rpbaptist/rules.mk
index d9e8b701e2..dedd5753e5 100644
--- a/keyboards/crkbd/keymaps/rpbaptist/rules.mk
+++ b/keyboards/crkbd/keymaps/rpbaptist/rules.mk
@@ -1,5 +1,5 @@
 #This enables Link Time Optimization.This can save a good chunk of space(several KB for me), but the macro and function... functions cause it to error out.
-LINK_TIME_OPTIMIZATION_ENABLE = yes
+LTO_ENABLE = yes
 
 #Build Options
 #change to "no" to disable the options, or define them in the Makefile in
diff --git a/keyboards/dz60/keymaps/via/rules.mk b/keyboards/dz60/keymaps/via/rules.mk
index ea9a831e17..ca9fed0e6b 100644
--- a/keyboards/dz60/keymaps/via/rules.mk
+++ b/keyboards/dz60/keymaps/via/rules.mk
@@ -1,2 +1,2 @@
-LINK_TIME_OPTIMIZATION_ENABLE = yes
+LTO_ENABLE = yes
 VIA_ENABLE = yes
diff --git a/keyboards/dztech/dz60rgb/keymaps/xunz/rules.mk b/keyboards/dztech/dz60rgb/keymaps/xunz/rules.mk
index 7a77be4939..d12c8dc44e 100644
--- a/keyboards/dztech/dz60rgb/keymaps/xunz/rules.mk
+++ b/keyboards/dztech/dz60rgb/keymaps/xunz/rules.mk
@@ -1,5 +1,4 @@
 NKRO_ENABLE = yes                 # USB Nkey Rollover
 # VELOCIKEY_ENABLE = yes
 
-LINK_TIME_OPTIMIZATION_ENABLE = yes
-
+LTO_ENABLE = yes
diff --git a/keyboards/dztech/dz65rgb/keymaps/chocol8/rules.mk b/keyboards/dztech/dz65rgb/keymaps/chocol8/rules.mk
index 626329f811..1778a5e141 100644
--- a/keyboards/dztech/dz65rgb/keymaps/chocol8/rules.mk
+++ b/keyboards/dztech/dz65rgb/keymaps/chocol8/rules.mk
@@ -2,5 +2,4 @@ NKRO_ENABLE = yes            # USB Nkey Rollover
 VELOCIKEY_ENABLE = yes
 # AUTO_SHIFT_ENABLE = yes      # Auto Shift
 
-LINK_TIME_OPTIMIZATION_ENABLE = yes
-
+LTO_ENABLE = yes
diff --git a/keyboards/dztech/dz65rgb/keymaps/matthewrobo/rules.mk b/keyboards/dztech/dz65rgb/keymaps/matthewrobo/rules.mk
index 9a75bb29dc..29afe8cd03 100644
--- a/keyboards/dztech/dz65rgb/keymaps/matthewrobo/rules.mk
+++ b/keyboards/dztech/dz65rgb/keymaps/matthewrobo/rules.mk
@@ -2,5 +2,4 @@ NKRO_ENABLE = yes                 # USB Nkey Rollover
 AUTO_SHIFT_ENABLE = yes      # Auto Shift
 # VELOCIKEY_ENABLE = yes
 
-LINK_TIME_OPTIMIZATION_ENABLE = yes
-
+LTO_ENABLE = yes
diff --git a/keyboards/ergodox_ez/keymaps/hacker_dvorak/rules.mk b/keyboards/ergodox_ez/keymaps/hacker_dvorak/rules.mk
index aa13f98bd6..2eda18ce4f 100644
--- a/keyboards/ergodox_ez/keymaps/hacker_dvorak/rules.mk
+++ b/keyboards/ergodox_ez/keymaps/hacker_dvorak/rules.mk
@@ -1,7 +1,7 @@
 # Set any rules.mk overrides for your specific keymap here.
 # See rules at https://docs.qmk.fm/#/config_options?id=the-rulesmk-file
 
-LINK_TIME_OPTIMIZATION_ENABLE = yes
+LTO_ENABLE = yes
 NKRO_ENABLE      = yes  # USB Nkey Rollover - if this doesn't work, see here: https://github.com/tmk/tmk_keyboard/wiki/FAQ#nkro-doesnt-work
 TAP_DANCE_ENABLE = yes
 MOUSEKEY_ENABLE  = yes  # Mouse keys(+4700b).
diff --git a/keyboards/ergodox_ez/keymaps/nathanvercaemert/rules.mk b/keyboards/ergodox_ez/keymaps/nathanvercaemert/rules.mk
index b41c275dd1..31c3fe3c74 100644
--- a/keyboards/ergodox_ez/keymaps/nathanvercaemert/rules.mk
+++ b/keyboards/ergodox_ez/keymaps/nathanvercaemert/rules.mk
@@ -1,6 +1,6 @@
 # Set any rules.mk overrides for your specific keymap here.
 # See rules at https://docs.qmk.fm/#/config_options?id=the-rulesmk-file
-LINK_TIME_OPTIMIZATION_ENABLE = yes
+LTO_ENABLE = yes
 COMMAND_ENABLE = no
 RGBLIGHT_ENABLE = no
 TAP_DANCE_ENABLE=yes
diff --git a/keyboards/flx/virgo/rules.mk b/keyboards/flx/virgo/rules.mk
index 529d365b59..cbf45a2b9b 100644
--- a/keyboards/flx/virgo/rules.mk
+++ b/keyboards/flx/virgo/rules.mk
@@ -30,5 +30,4 @@ UNICODE_ENABLE = no          # Unicode
 BLUETOOTH_ENABLE = no        # Enable Bluetooth with the Adafruit EZ-Key HID
 AUDIO_ENABLE = no            # Audio output on port C6
 FAUXCLICKY_ENABLE = no       # Use buzzer to emulate clicky switches
-LINK_TIME_OPTIMIZATION_ENABLE = yes
-
+LTO_ENABLE = yes
diff --git a/keyboards/gray_studio/think65/hotswap/rules.mk b/keyboards/gray_studio/think65/hotswap/rules.mk
index 2d789ff59a..5f85ff18ad 100644
--- a/keyboards/gray_studio/think65/hotswap/rules.mk
+++ b/keyboards/gray_studio/think65/hotswap/rules.mk
@@ -32,7 +32,7 @@ AUDIO_ENABLE = no            # Audio output on port C6
 FAUXCLICKY_ENABLE = no       # Use buzzer to emulate clicky switches
 HD44780_ENABLE = no          # Enable support for HD44780 based LCDs
 
-LINK_TIME_OPTIMIZATION_ENABLE = yes
+LTO_ENABLE = yes
 
 LAYOUTS = 65_ansi_blocker
 
diff --git a/keyboards/gray_studio/think65/solder/rules.mk b/keyboards/gray_studio/think65/solder/rules.mk
index 2d789ff59a..5f85ff18ad 100644
--- a/keyboards/gray_studio/think65/solder/rules.mk
+++ b/keyboards/gray_studio/think65/solder/rules.mk
@@ -32,7 +32,7 @@ AUDIO_ENABLE = no            # Audio output on port C6
 FAUXCLICKY_ENABLE = no       # Use buzzer to emulate clicky switches
 HD44780_ENABLE = no          # Enable support for HD44780 based LCDs
 
-LINK_TIME_OPTIMIZATION_ENABLE = yes
+LTO_ENABLE = yes
 
 LAYOUTS = 65_ansi_blocker
 
diff --git a/keyboards/handwired/promethium/rules.mk b/keyboards/handwired/promethium/rules.mk
index 19d20ee03f..4b96e2f691 100644
--- a/keyboards/handwired/promethium/rules.mk
+++ b/keyboards/handwired/promethium/rules.mk
@@ -45,4 +45,4 @@ SRC += rgbsps.c
 SRC += analog.c
 SRC += matrix.c
 
-LINK_TIME_OPTIMIZATION_ENABLE = yes
+LTO_ENABLE = yes
diff --git a/keyboards/helix/pico/keymaps/biacco/rules.mk b/keyboards/helix/pico/keymaps/biacco/rules.mk
index 0c60c40f64..37e49977c5 100644
--- a/keyboards/helix/pico/keymaps/biacco/rules.mk
+++ b/keyboards/helix/pico/keymaps/biacco/rules.mk
@@ -7,7 +7,7 @@
 #
 EXTRAKEY_ENABLE = yes       # Audio control and System control(+450)
 AUDIO_ENABLE = yes           # Audio output on port B5
-LINK_TIME_OPTIMIZATION_ENABLE = no  # if firmware size over limit, try this option
+LTO_ENABLE = no  # if firmware size over limit, try this option
 
 # Helix Spacific Build Options
 # you can uncomment and edit follows 6 Variables
diff --git a/keyboards/helix/pico/keymaps/default/rules.mk b/keyboards/helix/pico/keymaps/default/rules.mk
index c084457321..8f198e3803 100644
--- a/keyboards/helix/pico/keymaps/default/rules.mk
+++ b/keyboards/helix/pico/keymaps/default/rules.mk
@@ -7,7 +7,7 @@
 #
 EXTRAKEY_ENABLE = yes       # Audio control and System control
 AUDIO_ENABLE = yes          # Audio output on port B5
-LINK_TIME_OPTIMIZATION_ENABLE = no  # if firmware size over limit, try this option
+LTO_ENABLE = no  # if firmware size over limit, try this option
 
 # Helix Spacific Build Options
 # you can uncomment and edit follows 6 Variables
diff --git a/keyboards/helix/pico/keymaps/mtei/rules.mk b/keyboards/helix/pico/keymaps/mtei/rules.mk
index 764b073007..165233f5fe 100644
--- a/keyboards/helix/pico/keymaps/mtei/rules.mk
+++ b/keyboards/helix/pico/keymaps/mtei/rules.mk
@@ -7,7 +7,7 @@
 #
 EXTRAKEY_ENABLE = yes       # Audio control and System control(+450)
 AUDIO_ENABLE = yes          # Audio output on port B5
-LINK_TIME_OPTIMIZATION_ENABLE = no  # if firmware size over limit, try this option
+LTO_ENABLE = no  # if firmware size over limit, try this option
 
 # Helix Spacific Build Options
 # you can uncomment and edit follows 6 Variables
diff --git a/keyboards/helix/pico/local_features.mk b/keyboards/helix/pico/local_features.mk
index 0277a3d227..a984446868 100644
--- a/keyboards/helix/pico/local_features.mk
+++ b/keyboards/helix/pico/local_features.mk
@@ -106,10 +106,10 @@ endif
 
 ifeq ($(strip $(AUDIO_ENABLE)),yes)
   ifeq ($(strip $(RGBLIGHT_ENABLE)),yes)
-    LINK_TIME_OPTIMIZATION_ENABLE = yes
+    LTO_ENABLE = yes
   endif
   ifeq ($(strip $(OLED_ENABLE)),yes)
-    LINK_TIME_OPTIMIZATION_ENABLE = yes
+    LTO_ENABLE = yes
   endif
 endif
 
@@ -120,7 +120,7 @@ ifneq ($(strip $(SHOW_HELIX_OPTIONS)),)
      $(info -- OLED_DRIVER_ENABLE = $(OLED_DRIVER_ENABLE))
      $(info -- CONSOLE_ENABLE     = $(CONSOLE_ENABLE))
      $(info -- OPT_DEFS           = $(OPT_DEFS))
-     $(info -- LINK_TIME_OPTIMIZATION_ENABLE = $(LINK_TIME_OPTIMIZATION_ENABLE))
+     $(info -- LTO_ENABLE = $(LTO_ENABLE))
      $(info )
   endif
 endif
diff --git a/keyboards/helix/rev2/keymaps/default/rules.mk b/keyboards/helix/rev2/keymaps/default/rules.mk
index 6a42fcf73f..9801648dec 100644
--- a/keyboards/helix/rev2/keymaps/default/rules.mk
+++ b/keyboards/helix/rev2/keymaps/default/rules.mk
@@ -5,7 +5,7 @@
 #   See TOP/keyboards/helix/rules.mk for a list of options that can be set.
 #   See TOP/docs/config_options.md for more information.
 #
-LINK_TIME_OPTIMIZATION_ENABLE = no  # if firmware size over limit, try this option
+LTO_ENABLE = no  # if firmware size over limit, try this option
 
 # Helix Spacific Build Options
 # you can uncomment and edit follows 7 Variables
diff --git a/keyboards/helix/rev2/keymaps/edvorakjp/rules.mk b/keyboards/helix/rev2/keymaps/edvorakjp/rules.mk
index e30690029b..18bef6bf71 100644
--- a/keyboards/helix/rev2/keymaps/edvorakjp/rules.mk
+++ b/keyboards/helix/rev2/keymaps/edvorakjp/rules.mk
@@ -5,7 +5,7 @@
 #   See TOP/keyboards/helix/rules.mk for a list of options that can be set.
 #   See TOP/docs/config_options.md for more information.
 #
-LINK_TIME_OPTIMIZATION_ENABLE = no  # if firmware size over limit, try this option
+LTO_ENABLE = no  # if firmware size over limit, try this option
 TAP_DANCE_ENABLE = yes
 
 # Helix Spacific Build Options
diff --git a/keyboards/helix/rev2/keymaps/five_rows/rules.mk b/keyboards/helix/rev2/keymaps/five_rows/rules.mk
index fb564b6e04..8c4239deb9 100644
--- a/keyboards/helix/rev2/keymaps/five_rows/rules.mk
+++ b/keyboards/helix/rev2/keymaps/five_rows/rules.mk
@@ -11,7 +11,7 @@
  #      yes, no  +1500
  #      yes, yes +3200
  #      no,  yes +400
-LINK_TIME_OPTIMIZATION_ENABLE = no  # if firmware size over limit, try this option
+LTO_ENABLE = no  # if firmware size over limit, try this option
 
 # Helix Spacific Build Options
 # you can uncomment and edit follows 7 Variables
diff --git a/keyboards/helix/rev2/keymaps/five_rows_jis/rules.mk b/keyboards/helix/rev2/keymaps/five_rows_jis/rules.mk
index 6c2057cfd6..d44382f86a 100644
--- a/keyboards/helix/rev2/keymaps/five_rows_jis/rules.mk
+++ b/keyboards/helix/rev2/keymaps/five_rows_jis/rules.mk
@@ -5,7 +5,7 @@
 #   See TOP/keyboards/helix/rules.mk for a list of options that can be set.
 #   See TOP/docs/config_options.md for more information.
 #
-LINK_TIME_OPTIMIZATION_ENABLE = no  # if firmware size over limit, try this option
+LTO_ENABLE = no  # if firmware size over limit, try this option
 
 # Helix Spacific Build Options
 # you can uncomment and edit follows 7 Variables
diff --git a/keyboards/helix/rev2/keymaps/froggy/rules.mk b/keyboards/helix/rev2/keymaps/froggy/rules.mk
index bea059ca16..5a0fd9a2b1 100644
--- a/keyboards/helix/rev2/keymaps/froggy/rules.mk
+++ b/keyboards/helix/rev2/keymaps/froggy/rules.mk
@@ -5,7 +5,7 @@
 #   See TOP/keyboards/helix/rules.mk for a list of options that can be set.
 #   See TOP/docs/config_options.md for more information.
 #
-LINK_TIME_OPTIMIZATION_ENABLE = no  # if firmware size over limit, try this option
+LTO_ENABLE = no  # if firmware size over limit, try this option
 
 # Helix Spacific Build Options
 # you can uncomment and edit follows 7 Variables
diff --git a/keyboards/helix/rev2/keymaps/froggy_106/rules.mk b/keyboards/helix/rev2/keymaps/froggy_106/rules.mk
index bea059ca16..5a0fd9a2b1 100644
--- a/keyboards/helix/rev2/keymaps/froggy_106/rules.mk
+++ b/keyboards/helix/rev2/keymaps/froggy_106/rules.mk
@@ -5,7 +5,7 @@
 #   See TOP/keyboards/helix/rules.mk for a list of options that can be set.
 #   See TOP/docs/config_options.md for more information.
 #
-LINK_TIME_OPTIMIZATION_ENABLE = no  # if firmware size over limit, try this option
+LTO_ENABLE = no  # if firmware size over limit, try this option
 
 # Helix Spacific Build Options
 # you can uncomment and edit follows 7 Variables
diff --git a/keyboards/helix/rev2/keymaps/led_test/rules.mk b/keyboards/helix/rev2/keymaps/led_test/rules.mk
index fb0b5a5476..013ef1482d 100644
--- a/keyboards/helix/rev2/keymaps/led_test/rules.mk
+++ b/keyboards/helix/rev2/keymaps/led_test/rules.mk
@@ -5,7 +5,7 @@
 #   See TOP/keyboards/helix/rules.mk for a list of options that can be set.
 #   See TOP/docs/config_options.md for more information.
 #
-LINK_TIME_OPTIMIZATION_ENABLE = no  # if firmware size over limit, try this option
+LTO_ENABLE = no  # if firmware size over limit, try this option
 
 # Helix Spacific Build Options
 # you can uncomment and edit follows 7 Variables
diff --git a/keyboards/helix/rev2/keymaps/yshrsmz/rules.mk b/keyboards/helix/rev2/keymaps/yshrsmz/rules.mk
index 13d8099317..83dcc9b3b8 100644
--- a/keyboards/helix/rev2/keymaps/yshrsmz/rules.mk
+++ b/keyboards/helix/rev2/keymaps/yshrsmz/rules.mk
@@ -5,7 +5,7 @@
 #   See TOP/keyboards/helix/rules.mk for a list of options that can be set.
 #   See TOP/docs/config_options.md for more information.
 #
-LINK_TIME_OPTIMIZATION_ENABLE = no  # if firmware size over limit, try this option