Makefile: add support for Link Time Optimization

Enable LTO using: LTO=1 make Signed-off-by: Colin Ian King <[email protected]>
ColinIanKing · Jan 11, 2024 · 1744999 · 1744999
1 parent fc70629
commit 1744999
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/Makefile b/Makefile
@@ -88,6 +88,12 @@ endif
 # Optimization flags
 #
 override CFLAGS += $(foreach flag,-fipa-pta,$(cc_supports_flag))
+#
+# Enable Link Time Optimization
+#
+ifeq ($(LTO),1)
+override CFLAGS += $(foreach flag,-flto=auto,$(cc_supports_flag))
+endif
 
 #
 # Expected build warnings