Makefile.cmachflags revision 1.1 
1#	$NetBSD: Makefile.cmachflags,v 1.1 2009/01/25 22:25:08 abs Exp $
2
3# Set CMACHFLAGS best target the specific CPU combination, based on
4# -DM68020, -DM68030, -DM68040, and -DM68060
5
6# This should typically be included iff the config file has not already set
7# CMACHFLAGS, eg:
8#   .if !defined(CMACHFLAGS)
9#   .include "$S/arch/m68k/Makefile.cmachflags"
10#   CMACHFLAGS+=    -Wa,-m68030 -Wa,-m68851
11#   .endif
12
13# Table of CPUs targetted vs gcc flags. Note: -m68020 and -m68030 are
14# ~identical, but they are both included for completeness.
15
16# 020 030 040 060 -m68020-60
17# 030 040 060     -m68020-60
18# 020 040 060     -m68020-60
19# 020 030 060     -m68020-60
20# 040 060         -m68020-60 (Would have been nice to have a -m68040-60)
21# 030 060         -m68020-60
22# 020 060         -m68020-60
23# 060             -m68060
24#
25# 020 030 040     -m68020-40
26# 030 040         -m68020-40
27# 020 040         -m68020-40
28# 040             -m68040
29#
30# 020 030         -m68020
31# 030             -m68030
32# 020             -m68020
33
34.if !empty(IDENT:M-DM68060)
35.if empty(IDENT:M-DM68020) && empty(IDENT:M-DM68030) && empty(IDENT:M-DM68040)
36CMACHFLAGS=	-m68060
37.else
38CMACHFLAGS=	-m68020-60
39.endif
40.elif !empty(IDENT:M-DM68040)
41.if empty(IDENT:M-DM68020) && empty(IDENT:M-DM68030)
42CMACHFLAGS=	-m68040
43.else /* !-DM68060 */
44CMACHFLAGS=	-m68020-40
45.endif
46.elif !empty(IDENT:M-DM68020)
47CMACHFLAGS=	-m68020
48.else
49CMACHFLAGS=	-m68030
50.endif /* !-DM68060 */
51