#	$NetBSD: Makefile.cmachflags,v 1.1 2009/01/25 22:25:08 abs Exp $

# Set CMACHFLAGS best target the specific CPU combination, based on
# -DM68020, -DM68030, -DM68040, and -DM68060

# This should typically be included iff the config file has not already set
# CMACHFLAGS, eg:
#   .if !defined(CMACHFLAGS)
#   .include "$S/arch/m68k/Makefile.cmachflags"
#   CMACHFLAGS+=    -Wa,-m68030 -Wa,-m68851
#   .endif

# Table of CPUs targetted vs gcc flags. Note: -m68020 and -m68030 are
# ~identical, but they are both included for completeness.

# 020 030 040 060 -m68020-60
# 030 040 060     -m68020-60
# 020 040 060     -m68020-60
# 020 030 060     -m68020-60
# 040 060         -m68020-60 (Would have been nice to have a -m68040-60)
# 030 060         -m68020-60
# 020 060         -m68020-60
# 060             -m68060
#
# 020 030 040     -m68020-40
# 030 040         -m68020-40
# 020 040         -m68020-40
# 040             -m68040
#
# 020 030         -m68020
# 030             -m68030
# 020             -m68020

.if !empty(IDENT:M-DM68060)
.if empty(IDENT:M-DM68020) && empty(IDENT:M-DM68030) && empty(IDENT:M-DM68040)
CMACHFLAGS=	-m68060
.else
CMACHFLAGS=	-m68020-60
.endif
.elif !empty(IDENT:M-DM68040)
.if empty(IDENT:M-DM68020) && empty(IDENT:M-DM68030)
CMACHFLAGS=	-m68040
.else /* !-DM68060 */
CMACHFLAGS=	-m68020-40
.endif
.elif !empty(IDENT:M-DM68020)
CMACHFLAGS=	-m68020
.else
CMACHFLAGS=	-m68030
.endif /* !-DM68060 */