--- linux-2.4.30/Makefile 2005-10-23 20:52:56.813948000 +0200 +++ linux.dev/Makefile 2005-10-23 20:53:12.482927250 +0200 @@ -89,6 +89,8 @@ # standard CFLAGS # +check_gcc = $(shell if $(CC) $(1) -S -o /dev/null -xc /dev/null > /dev/null 2>&1; then echo "$(1)"; else echo "$(2)"; fi) + CPPFLAGS := -D__KERNEL__ -I$(HPATH) CFLAGS := $(CPPFLAGS) -Wall -Wstrict-prototypes -Wno-trigraphs -Os \ @@ -100,6 +102,12 @@ endif AFLAGS := -D__ASSEMBLY__ $(CPPFLAGS) +CFLAGS += $(call check_gcc, -funit-at-a-time,) + + + + + # # ROOT_DEV specifies the default root-device when making the image. # This can be either FLOPPY, CURRENT, /dev/xxxx or empty, in which case