-# This option enables LTO for stage2 and stage3. It requires lto to
-# be enabled for stage1 with --enable-stage1-languages.
+# This option enables LTO for stage2 and stage3.
+# FIXME: Our build system is not yet able to use gcc-ar wrapper, so we need
+# to go with -ffat-lto-objects.
-STAGE2_CFLAGS += -flto=jobserver -frandom-seed=1
-STAGE3_CFLAGS += -flto=jobserver -frandom-seed=1
-STAGEprofile_CFLAGS += -fno-lto
+STAGE2_CFLAGS += -flto=jobserver -frandom-seed=1 -ffat-lto-objects
+STAGE3_CFLAGS += -flto=jobserver -frandom-seed=1 -ffat-lto-objects
+STAGEprofile_CFLAGS += -fno-lto