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## -*- makefile -*- -------------------------------------------------------
##   
##   Copyright 2008 H. Peter Anvin - All Rights Reserved
##
##   This program is free software; you can redistribute it and/or modify
##   it under the terms of the GNU General Public License as published by
##   the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
##   Boston MA 02110-1301, USA; either version 2 of the License, or
##   (at your option) any later version; incorporated herein by reference.
##
## -----------------------------------------------------------------------

##
## COM32 common configurables
##

include $(topdir)/MCONFIG

GCCOPT := $(call gcc_ok,-std=gnu99,) \
	  $(call gcc_ok,-m32,) \
	  $(call gcc_ok,-fno-stack-protector,) \
	  -mregparm=3 -DREGPARM=3 -march=i386 -Os

com32 = $(topdir)/com32

CFLAGS     = $(GCCOPT) -W -Wall -march=i386 \
	     -fomit-frame-pointer -D__COM32__ \
	     -nostdinc -iwithprefix include \
	     -I$(com32)/libutil/include -I$(com32)/include
SFLAGS     = $(GCCOPT) -D__COM32__ -march=i386
LDFLAGS    = -m elf_i386 -T $(com32)/lib/com32.ld
LIBGCC    := $(shell $(CC) $(GCCOPT) --print-libgcc)

LNXCFLAGS  = -I$(com32)/libutil/include -W -Wall -O -g -D_GNU_SOURCE
LNXSFLAGS  = -g
LNXLDFLAGS = -g

C_LIBS	   = $(com32)/libutil/libutil_com.a $(com32)/lib/libcom32.a $(LIBGCC)
C_LNXLIBS  = $(com32)/libutil/libutil_lnx.a

.SUFFIXES: .lss .c .lo .o .elf .c32 .lnx

.PRECIOUS: %.o
%.o: %.S
	$(CC) $(SFLAGS) -c -o $@ $<

.PRECIOUS: %.o
%.o: %.c
	$(CC) $(CFLAGS) -c -o $@ $<

.PRECIOUS: %.elf
%.elf: %.o $(LIBS) $(C_LIBS)
	$(LD) $(LDFLAGS) -o $@ $^

.PRECIOUS: %.lo
%.lo: %.S
	$(CC) $(LNXSFLAGS) -c -o $@ $<

.PRECIOUS: %.lo
%.lo: %.c
	$(CC) $(LNXCFLAGS) -c -o $@ $<

.PRECIOUS: %.lnx
%.lnx: %.lo $(LNXLIBS) $(C_LNXLIBS)
	$(CC) $(LNXCFLAGS) -o $@ $^

%.c32: %.elf
	$(OBJCOPY) -O binary $< $@