diff options
Diffstat (limited to 'dos/Makefile')
| -rw-r--r-- | dos/Makefile | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/dos/Makefile b/dos/Makefile index 61423cec..5fd52d1b 100644 --- a/dos/Makefile +++ b/dos/Makefile @@ -1,9 +1,14 @@ +gcc_ok = $(shell if gcc $(1) -c -x c /dev/null -o /dev/null 2>/dev/null; \ + then echo $(1); else echo $(2); fi) + +M32 := $(call gcc_ok,-m32,) $(call gcc_ok,-ffreestanding,) $(call gcc_ok,-fno-stack-protector,) + CC = gcc LD = ld -m elf_i386 OBJCOPY = objcopy OPTFLAGS = -g -Os -march=i386 -falign-functions=0 -falign-jumps=0 -falign-loops=0 -fomit-frame-pointer INCLUDES = -include code16.h -I. -I.. -I../libfat -CFLAGS = -m32 -mregparm=3 -DREGPARM=3 -W -Wall -ffreestanding -msoft-float $(OPTFLAGS) $(INCLUDES) +CFLAGS = $(M32) -mregparm=3 -DREGPARM=3 -W -Wall -msoft-float $(OPTFLAGS) $(INCLUDES) LDFLAGS = -T com16.ld AR = ar RANLIB = ranlib |