update Makefile

Author: matrix

src/Makefile

@@ -41,13 +41,13 @@ endif
 
 # disable LTO if DEBUG > 0
 ifeq ($(shell [ $(DEBUG) -gt 0 ] && echo true),true)
-ENABLE_LTO := 0
+override ENABLE_LTO := 0
 endif
 
 # disable LTO if MACOS_UNIVERSAL_BINARY == 1
 ifeq ($(UNAME),Darwin)
 ifeq ($(MACOS_UNIVERSAL_BINARY),1)
-ENABLE_LTO := 0
+override ENABLE_LTO := 0
 endif
 endif
 
@@ -61,7 +61,7 @@ endif
 ifeq ($(BUILD_MODE),native)
 ifeq ($(CC),clang)
 ifneq (,$(filter MSYS2 NetBSD DragonFly,$(UNAME)))
-ENABLE_LTO := 0
+override ENABLE_LTO := 0
 endif
 endif
 endif
@@ -238,7 +238,7 @@ endif
 # disable LTO if MSYS2 and CC is clang
 ifeq ($(UNAME),MSYS2)
 ifeq ($(CC_NATIVE_CLANG),1)
-ENABLE_LTO              := 0
+override ENABLE_LTO     := 0
 endif
 endif