# Copyright (C) 1995,1996 Robert de Bath <rdebath@cix.compulink.co.uk>
# This file is part of the Linux-8086 C library and is distributed
# under the GNU Library General Public License.

# Set PLATFORM to i386-Linux to build for Linux/386 and to i86-ELKS to
# build for ELKS.  This doesn't quite work yet, though, because of some of
# the platform and/or compiler-specific code flying around here.
# Eventually, compiler-specificity won't be an issue, and we can put
# platform-specific code in i86/ and i386/.   -Nat

# Define enviroment var for others.
ifeq ($(PLATFORM),)
# PLATFORM=i86-ELKS
# PLATFORM=i86-FAST  PLATFORM=i86-DOS  PLATFORM=i386-BCC  PLATFORM=i386-Linux

PLATFORM=$(shell if [ -f $(TOP)/.config.otype ] ; \
                 then cat $(TOP)/.config.otype ; \
                 else echo i86-ELKS ; fi)
export PLATFORM
endif

VERMAJOR=0
VERMINOR=0
VERPATCH=8
VER=$(VERMAJOR).$(VERMINOR).$(VERPATCH)

LIBDEFS='-D__LIBC__="$(VER)"'
LIBC=libc.a

##############################################################################

# Normal standard 8086 code
ifeq ($(PLATFORM),i86-ELKS)
ARCH=
LIB_CPU=i86
LIB_OS=ELKS
endif

# 8086 elks code With "Caller saves" and "First arg in AX"
ifeq ($(PLATFORM),i86-FAST)
ARCH=-Mf
LIBC=libc_f.a
LIB_CPU=i86
LIB_OS=ELKS
endif

# Standalone executable
ifeq ($(PLATFORM),i86-BIOS)
ARCH=-Ms
LIBC=libc_s.a
LIB_CPU=i86
LIB_OS=BIOS
endif

# MSDOS COM file (msdos libs don't support "First arg in AX")
ifeq ($(PLATFORM),i86-DOS)
ARCH=-Md
LIBC=libdos.a
LIB_CPU=i86
LIB_OS=DOS
endif

##############################################################################

# BCC 386.
ifeq ($(PLATFORM),i386-BCC)
ARCH=-3 -N
LIB_CPU=i386
LIB_OS=ELKS

CC=bcc $(ARCH)
CCFLAGS=-I -I$(TOP)/include
LKFLAGS=-L -L$(TOP)/
endif

ifeq ($(PLATFORM),i386-Linux)
LIB_CPU=g386
LIB_OS=ELKS

CC=gcc $(ARCH)
# ARCH=-b i486-linuxaout
LKFLAGS=-static -N
CCFLAGS=-O6 -fomit-frame-pointer -I- -I$(TOP)/include -I. -fno-builtin
WALL=	-ansi -pedantic -Wwrite-strings -Wpointer-arith -Wcast-qual \
	-Wcast-align -Wtraditional -Wstrict-prototypes -Wmissing-prototypes \
	-Wnested-externs -Winline -Wshadow
endif

############################################################################

ifeq ($(LIB_CPU),i86)
CC=bcc $(ARCH)
CCFLAGS=-I -I$(TOP)/include # -O
LKFLAGS=-L -L$(TOP)/ -s
endif

ifeq ($(LIB_CPU),)
LIB_CPU=Unknown
LIB_OS=Unknown
LIBC=libc_X.a
CCFLAGS=-I$(TOP)/include
LKFLAGS=
endif

CFLAGS=$(CCFLAGS) $(LIBDEFS)
LDFLAGS=$(LKFLAGS)

.PRECIOUS: $(LIBC)