Using parallel processing for LTO if GCC ver >= 10
Posted: Sat Jan 08, 2022 1:04 am
-flto=auto was introduced in GCC10. You can do this in rules.mk to enable it.
Code: Select all
# Link time optimizations
ifeq ($(USE_LTO),yes)
ifeq ($(shell test $$($(CC) -dumpversion | cut -d. -f1) -ge 10; echo $$?),0)
OPT += -flto=auto
else
OPT += -flto
endif
endif