1 ?RCS: $Id: Guess.U,v 3.0.1.5 1995/07/25 13:37:14 ram Exp $
3 ?RCS: Copyright (c) 1991-1993, Raphael Manfredi
5 ?RCS: You may redistribute only under the terms of the Artistic Licence,
6 ?RCS: as specified in the README file that comes with the distribution.
7 ?RCS: You may reuse parts of this distribution only within the terms of
8 ?RCS: that same Artistic Licence; a copy of which may be found at the root
9 ?RCS: of the source tree for dist 3.0.
11 ?RCS: $Log: Guess.U,v $
12 ?RCS: Revision 3.0.1.5 1995/07/25 13:37:14 ram
13 ?RCS: patch56: now knows about OS/2 platforms
15 ?RCS: Revision 3.0.1.4 1994/10/29 15:53:55 ram
16 ?RCS: patch36: added ?F: line for metalint file checking
17 ?RCS: patch36: call ./xenix explicitely instead of relying on PATH
19 ?RCS: Revision 3.0.1.3 1993/12/15 08:14:35 ram
20 ?RCS: patch15: variable d_bsd was not always set properly
22 ?RCS: Revision 3.0.1.2 1993/08/30 08:57:14 ram
23 ?RCS: patch8: fixed comment which wrongly attributed the usrinc symbol
24 ?RCS: patch8: no more ugly messages when no /usr/include/ctype.h
26 ?RCS: Revision 3.0.1.1 1993/08/27 14:37:37 ram
27 ?RCS: patch7: added support for OSF/1 machines
29 ?RCS: Revision 3.0 1993/08/18 12:04:57 ram
30 ?RCS: Baseline for dist 3.0 netwide release.
33 ?X: This unit hazards some guesses as to what the general nature of the system
34 ?X: is. The information it collects here is used primarily to establish default
35 ?X: answers to other questions.
37 ?MAKE:Guess d_eunice d_xenix d_bsd: cat test echo n c contains \
39 ?MAKE: -pick add $@ %<
41 ?S: This variable conditionally defines the symbols EUNICE and VAX, which
42 ?S: alerts the C program that it must deal with ideosyncracies of VMS.
45 ?S: This variable conditionally defines the symbol XENIX, which alerts
46 ?S: the C program that it runs under Xenix.
49 ?S: This symbol conditionally defines the symbol BSD when running on a
53 ?C: This symbol, if defined, indicates that the program is being compiled
54 ?C: under the EUNICE package under VMS. The program will need to handle
55 ?C: things like files that don't go away the first time you unlink them,
56 ?C: due to version numbering. It will also need to compensate for lack
57 ?C: of a respectable link() command.
59 ?X: Should we define VMS here? Is Eunice actually used anymore?
61 ?X:?C: This symbol, if defined, indicates that the program is running under
62 ?X:?C: VMS. It is currently only set in conjunction with the EUNICE symbol.
65 ?C: This symbol, if defined, indicates thet the program is running under
66 ?C: Xenix (at least 3.0 ?).
68 ?X: We don't use BSD in the perl source. It's too vague, and already
69 ?X: defined in some header files anyway (e.g. NetBSD). This just gives
70 ?X: us a spurious redefinition error upon compilation.
71 ?X: --Andy Dougherty Feb 11, 1998
73 ?X: ?C: This symbol, if defined, indicates that the program is running under
76 ?H:#$d_eunice EUNICE /**/
77 ?X:?H:#$d_eunice VMS /**/
78 ?H:#$d_xenix XENIX /**/
79 ?X: ?H:#$d_bsd BSD /**/
81 ?F:./bsd ./usg ./v7 ./osf1 ./eunice ./xenix ./venix ./os2
83 : make some quick guesses about what we are up against
96 ?X: Do not use 'usrinc', or we get a circular dependency. because
97 ?X: usrinc is defined in usrinc.U, which relies on us...
99 $cat /usr/include/signal.h /usr/include/sys/signal.h >foo 2>/dev/null
100 if test -f /osf_boot || $contains 'OSF/1' /usr/include/ctype.h >/dev/null 2>&1
102 echo "Looks kind of like an OSF/1 system, but we'll see..."
104 elif test `echo abc | $tr a-z A-Z` = Abc ; then
105 xxx=`./loc addbib blurfl $pth`
106 if $test -f $xxx; then
107 echo "Looks kind of like a USG system with BSD features, but we'll see..."
111 if $contains SIGTSTP foo >/dev/null 2>&1 ; then
112 echo "Looks kind of like an extended USG system, but we'll see..."
114 echo "Looks kind of like a USG system, but we'll see..."
118 elif $contains SIGTSTP foo >/dev/null 2>&1 ; then
119 echo "Looks kind of like a BSD system, but we'll see..."
123 echo "Looks kind of like a Version 7 system, but we'll see..."
129 There is, however, a strange, musty smell in the air that reminds me of
130 something...hmm...yes...I've got it...there's a VMS nearby, or I'm a Blit.
134 : it so happens the Eunice I know will not run shell scripts in Unix format
138 echo "Congratulations. You aren't running Eunice."
142 : Detect OS2. The p_ variable is set above in the Head.U unit.
143 : Note that this also -- wrongly -- detects e.g. dos-djgpp, which also uses
144 : semicolon as a patch separator
149 I have the feeling something is not exactly right, however...don't tell me...
150 lemme think...does HAL ring a bell?...no, of course, you're only running OS/2!
151 (Or you may be running DOS with DJGPP.)
156 if test -f /xenix; then
157 echo "Actually, this looks more like a XENIX system..."
162 echo "It's not Xenix..."
167 if test -f /venix; then
168 echo "Actually, this looks more like a VENIX system..."
175 echo "Nor is it Venix..."
178 chmod +x bsd usg v7 osf1 eunice xenix venix os2
179 $eunicefix bsd usg v7 osf1 eunice xenix venix os2