xref: /dragonfly/contrib/bmake/os.sh (revision 0ca59c34) 
1:
2# NAME:
3#	os.sh - operating system specifics
4#
5# DESCRIPTION:
6#	This file is included at the start of processing. Its role is
7#	to set the variables OS, OSREL, OSMAJOR, MACHINE and MACHINE_ARCH to
8#	reflect the current system.
9#
10#	It also sets variables such as MAILER, LOCAL_FS, PS_AXC to hide
11#	certain aspects of different UNIX flavours.
12#
13# SEE ALSO:
14#	site.sh,funcs.sh
15#
16# AUTHOR:
17#	Simon J. Gerraty <sjg@crufty.net>
18
19# RCSid:
20#	$Id: os.sh,v 1.46 2014/05/19 16:38:09 sjg Exp $
21#
22#	@(#) Copyright (c) 1994 Simon J. Gerraty
23#
24#	This file is provided in the hope that it will
25#	be of use.  There is absolutely NO WARRANTY.
26#	Permission to copy, redistribute or otherwise
27#	use this file is hereby granted provided that
28#	the above copyright notice and this notice are
29#	left intact.
30#
31#	Please send copies of changes and bug-fixes to:
32#	sjg@crufty.net
33#
34
35# this lets us skip sourcing it again
36_OS_SH=:
37
38OS=`uname`
39OSREL=`uname -r`
40OSMAJOR=`IFS=.; set $OSREL; echo $1`
41MACHINE=`uname -m`
42MACHINE_ARCH=`uname -p 2>/dev/null || echo $MACHINE`
43
44# there is at least one case of `uname -p` outputting
45# a bunch of usless drivel
46case "$MACHINE_ARCH" in
47*[!A-Za-z0-9_-]*) MACHINE_ARCH="$MACHINE";;
48esac
49
50# we need this here, and it is not always available...
51Which() {
52	case "$1" in
53	-*) t=$1; shift;;
54	*) t=-x;;
55	esac
56	case "$1" in
57	/*)	test $t $1 && echo $1;;
58	*)
59        	# some shells cannot correctly handle `IFS`
60        	# in conjunction with the for loop.
61        	_dirs=`IFS=:; echo ${2:-$PATH}`
62        	for d in $_dirs
63		do
64			test $t $d/$1 && { echo $d/$1; break; }
65		done
66		;;
67	esac
68}
69
70# tr is insanely non-portable wrt char classes, so we need to
71# spell out the alphabet. sed y/// would work too.
72toUpper() {
73        ${TR:-tr} abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
74}
75
76toLower() {
77        ${TR:-tr} ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
78}
79
80K=
81case $OS in
82AIX)	# everyone loves to be different...
83	OSMAJOR=`uname -v`
84	OSREL="$OSMAJOR.`uname -r`"
85	LOCAL_FS=jfs
86	PS_AXC=-e
87	SHARE_ARCH=$OS/$OSMAJOR.X
88	;;
89SunOS)
90	CHOWN=`Which chown /usr/etc:/usr/bin`
91	export CHOWN
92
93	# Great! Solaris keeps moving arch(1)
94        # should just bite the bullet and use uname -p
95	arch=`Which arch /usr/bin:/usr/ucb`
96
97	MAILER=/usr/ucb/Mail
98	LOCAL_FS=4.2
99
100	case "$OSREL" in
101	4.0*)
102		# uname -m just says sun which could be anything
103		# so use arch(1).
104		MACHINE_ARCH=`arch`
105		MACHINE=$MACHINE_ARCH
106		;;
107	4*)
108                MACHINE_ARCH=`arch`
109                ;;
110	5*)
111		K=-k
112		LOCAL_FS=ufs
113		MAILER=mailx
114		PS_AXC=-e
115		# can you believe that ln on Solaris defaults to
116		# overwriting an existing file!!!!! We want one that works!
117		test -x /usr/xpg4/bin/ln && LN=${LN:-/usr/xpg4/bin/ln}
118		# wonderful, 5.8's tr again require's []'s
119                # but /usr/xpg4/bin/tr causes problems if LC_COLLATE is set!
120                # use toUpper/toLower instead.
121		;;
122	esac
123	case "$OS/$MACHINE_ARCH" in
124	*sun386)	SHARE_ARCH=$MACHINE_ARCH;;
125	esac
126	;;
127*BSD)
128	K=-k
129	MAILER=/usr/bin/Mail
130	LOCAL_FS=local
131	: $-,$ENV
132	case "$-,$ENV" in
133	*i*,*) ;;
134	*,|*ENVFILE*) ;;
135	*) ENV=;;
136	esac
137	# NetBSD at least has good backward compatibility
138	# so NetBSD/i386 is good enough
139	case $OS in
140	NetBSD) SHARE_ARCH=$OS/${MACHINE_ARCH:-$MACHINE};;
141	OpenBSD)
142	        arch=`Which arch /usr/bin:/usr/ucb:$PATH`
143                MACHINE_ARCH=`$arch -s`
144                ;;
145	esac
146	NAWK=awk
147	export NAWK
148	;;
149HP-UX)
150	TMP_DIRS="/tmp /usr/tmp"
151	LOCAL_FS=hfs
152	MAILER=mailx
153	# don't rely on /bin/sh, its broken
154	_shell=/bin/ksh; ENV=
155	# also, no one would be interested in OSMAJOR=A
156	case "$OSREL" in
157	?.09*)	OSMAJOR=9; PS_AXC=-e;;
158	?.10*)	OSMAJOR=10; PS_AXC=-e;;
159	esac
160	;;
161IRIX)
162	LOCAL_FS=efs
163	;;
164Interix)
165	MACHINE=i386
166	MACHINE_ARCH=i386
167	;;
168UnixWare)
169	OSREL=`uname -v`
170	OSMAJOR=`IFS=.; set $OSREL; echo $1`
171	MACHINE_ARCH=`uname -m`
172	;;
173Linux)
174	# Not really any such thing as Linux, but
175	# this covers red-hat and hopefully others.
176	case $MACHINE in
177	i?86)	MACHINE_ARCH=i386;; # we don't care about i686 vs i586
178	esac
179	LOCAL_FS=ext2
180	PS_AXC=axc
181	[ -x /usr/bin/md5sum ] && { MD5=/usr/bin/md5sum; export MD5; }
182	;;
183QNX)
184	case $MACHINE in
185	x86pc)	MACHINE_ARCH=i386;;
186	esac
187	;;
188Haiku)
189	case $MACHINE in
190	BeBox)	MACHINE_ARCH=powerpc;;
191	BeMac)	MACHINE_ARCH=powerpc;;
192	BePC)	MACHINE_ARCH=i386;;
193	esac
194	;;
195esac
196
197HOSTNAME=${HOSTNAME:-`( hostname ) 2>/dev/null`}
198HOSTNAME=${HOSTNAME:-`( uname -n ) 2>/dev/null`}
199case "$HOSTNAME" in
200*.*)	HOST=`IFS=.; set -- $HOSTNAME; echo $1`;;
201*)	HOST=$HOSTNAME;;
202esac
203
204TMP_DIRS=${TMP_DIRS:-"/tmp /var/tmp"}
205MACHINE_ARCH=${MACHINE_ARCH:-$MACHINE}
206# we mount server:/share/arch/$SHARE_ARCH as /usr/local
207SHARE_ARCH=${SHARE_ARCH:-$OS/$OSMAJOR.X/$MACHINE_ARCH}
208LN=${LN:-ln}
209TR=${TR:-tr}
210
211# Some people like have /share/$HOST_TARGET/bin etc.
212HOST_TARGET=`echo ${OS}${OSMAJOR}-${MACHINE_ARCH} | toLower`
213export HOST_TARGET
214
215case `echo -n .` in -n*) N=; C="\c";; *) N=-n; C=;; esac
216
217export HOSTNAME HOST
218export OS MACHINE MACHINE_ARCH OSREL OSMAJOR LOCAL_FS TMP_DIRS MAILER N C K PS_AXC
219export LN SHARE_ARCH TR
220
221case /$0 in
222*/os.sh)
223        for v in $*
224	do
225                eval vv=\$$v
226                echo "$v='$vv'"
227	done
228        ;;
229esac
230
231